Omron C-series, SYSMAC LINK C Series System Manual
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Cat. No. W174-E1-07
SYSMAC
C-Series
SYSMAC LINK
SYSTEM MANUAL
C-series SYSMAC LINK
System Manual
Revised September 2003
SLK11
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SLK21-V1
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SLK14
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SLK24
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Terms and Conditions of Sale
1.
Offer; Acceptance. These terms and conditions (these "Terms") are deemed part of all quotes, agreements, purchase orders, acknowledgments, price lists, catalogs, manuals, brochures and other documents, whether electronic or in writing, relating to the sale of products or services (collectively, the "Products") by Omron Electronics LLC and its subsidiary companies (“Omron”). Omron objects to any terms or conditions proposed in Buyer’s purchase order or other documents which are inconsistent with, or in addition to, these Terms.
2.
Prices; Payment Terms. All prices stated are current, subject to change without notice by Omron. Omron reserves the right to increase or decrease prices on any unshipped portions of outstanding orders. Payments for Products are due net 30 days unless otherwise stated in the invoice.
3.
Discounts. Cash discounts, if any, will apply only on the net amount of invoices sent to Buyer after deducting transportation charges, taxes and duties, and will be allowed only if (i) the invoice is paid according to Omron’s payment terms and (ii) Buyer has no past due amounts.
4.
Interest. Omron, at its option, may charge Buyer 1-1/2% interest per month or the maximum legal rate, whichever is less, on any balance not paid within the stated terms.
5.
Orders. Omron will accept no order less than $200 net billing.
6.
Governmental Approvals. Buyer shall be responsible for, and shall bear all costs involved in, obtaining any government approvals required for the importation or sale of the Products.
7.
Taxes. All taxes, duties and other governmental charges (other than general real property and income taxes), including any interest or penalties thereon, imposed directly or indirectly on Omron or required to be collected directly or indirectly by Omron for the manufacture, production, sale, delivery, importation, consumption or use of the Products sold hereunder (including customs duties and sales, excise, use, turnover and license taxes) shall be charged to and remitted by Buyer to Omron.
8.
Financial. If the financial position of Buyer at any time becomes unsatisfactory to Omron, Omron reserves the right to stop shipments or require satisfactory security or payment in advance. If Buyer fails to make payment or otherwise comply with these Terms or any related agreement, Omron may (without liability and in addition to other remedies) cancel any unshipped portion of Products sold hereunder and stop any Products in transit until Buyer pays all amounts, including amounts payable hereunder, whether or not then due, which are owing to it by Buyer. Buyer shall in any event remain liable for all unpaid accounts.
9.
Cancellation; Etc. Orders are not subject to rescheduling or cancellation unless Buyer indemnifies Omron against all related costs or expenses.
10. Force Majeure. Omron shall not be liable for any delay or failure in delivery resulting from causes beyond its control, including earthquakes, fires, floods, strikes or other labor disputes, shortage of labor or materials, accidents to machinery, acts of sabotage, riots, delay in or lack of transportation or the requirements of any government authority.
11. Shipping; Delivery. Unless otherwise expressly agreed in writing by Omron: a. Shipments shall be by a carrier selected by Omron; Omron will not drop ship except in “break down” situations.
b. Such carrier shall act as the agent of Buyer and delivery to such carrier shall constitute delivery to Buyer; c. All sales and shipments of Products shall be FOB shipping point (unless otherwise stated in writing by Omron), at which point title and risk of loss shall pass from Omron to Buyer; provided that Omron shall retain a security interest in the Products until the full purchase price is paid; d. Delivery and shipping dates are estimates only; and e. Omron will package Products as it deems proper for protection against normal handling and extra charges apply to special conditions.
12. Claims. Any claim by Buyer against Omron for shortage or damage to the
Products occurring before delivery to the carrier must be presented in writing to Omron within 30 days of receipt of shipment and include the original transportation bill signed by the carrier noting that the carrier received the Products from Omron in the condition claimed.
13. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the
Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION,
EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABIL-
ITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS.
BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying
Product, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by
Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above warranty.
See http://oeweb.omron.com or contact your Omron representative for published information.
14. Limitation on Liability; Etc. OMRON COMPANIES SHALL NOT BE LIABLE
FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY
WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS
BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
15. Indemnities. Buyer shall indemnify and hold harmless Omron Companies and their employees from and against all liabilities, losses, claims, costs and expenses (including attorney's fees and expenses) related to any claim, investigation, litigation or proceeding (whether or not Omron is a party) which arises or is alleged to arise from Buyer's acts or omissions under these Terms or in any way with respect to the Products. Without limiting the foregoing, Buyer (at its own expense) shall indemnify and hold harmless Omron and defend or settle any action brought against such Companies to the extent based on a claim that any Product made to Buyer specifications infringed intellectual property rights of another party.
16. Property; Confidentiality. Any intellectual property in the Products is the exclusive property of Omron Companies and Buyer shall not attempt to duplicate it in any way without the written permission of Omron. Notwithstanding any charges to Buyer for engineering or tooling, all engineering and tooling shall remain the exclusive property of Omron. All information and materials supplied by Omron to Buyer relating to the Products are confidential and proprietary, and Buyer shall limit distribution thereof to its trusted employees and strictly prevent disclosure to any third party.
17. Export Controls. Buyer shall comply with all applicable laws, regulations and licenses regarding (i) export of products or information; (iii) sale of products to
“forbidden” or other proscribed persons; and (ii) disclosure to non-citizens of regulated technology or information.
18. Miscellaneous. (a) Waiver. No failure or delay by Omron in exercising any right and no course of dealing between Buyer and Omron shall operate as a waiver of rights by Omron. (b) Assignment. Buyer may not assign its rights hereunder without Omron's written consent. (c) Law. These Terms are governed by the law of the jurisdiction of the home office of the Omron company from which
Buyer is purchasing the Products (without regard to conflict of law principles). (d) Amendment. These Terms constitute the entire agreement between
Buyer and Omron relating to the Products, and no provision may be changed or waived unless in writing signed by the parties. (e) Severability. If any provision hereof is rendered ineffective or invalid, such provision shall not invalidate any other provision. (f) Setoff. Buyer shall have no right to set off any amounts against the amount owing in respect of this invoice. (g) Definitions. As used herein, “including” means “including without limitation”; and “Omron Companies” (or similar words) mean Omron Corporation and any direct or indirect subsidiary or affiliate thereof.
Certain Precautions on Specifications and Use
1.
Suitability of Use. Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the
Product in the Buyer’s application or use of the Product. At Buyer’s request,
Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer’s application, product or system.
Buyer shall take application responsibility in all cases but the following is a non-exhaustive list of applications for which particular attention must be given:
(i) Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this document.
(ii) Use in consumer products or any use in significant quantities.
(iii) Energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations.
(iv) Systems, machines and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to this Product.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS
RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT
ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON’S PRODUCT IS PROP-
ERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
2.
Programmable Products. Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof.
3.
Performance Data. Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
4.
Change in Specifications. Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product.
5.
Errors and Omissions. Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions.
iv
Notice:
OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual.
The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to the product.
!
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
!
WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
!
Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage.
OMRON Product References
All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers to an OMRON product, regardless of whether or not it appears in the proper name of the product.
The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means
“word” and is abbreviated “Wd” in documentation in this sense.
The abbreviation “PC” means Programmable Controller and is not used as an abbreviation for anything else.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of information.
Note Indicates information of particular interest for efficient and convenient operation of the product.
1, 2, 3...
1.
Indicates lists of one sort or another, such as procedures, checklists, etc.
©
OMRON, 1990
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication.
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vi
TABLE OF CONTENTS
PRECAUTIONS
1 Intended Audience
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1 OMRON Network Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 SYSMAC LINK System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4 Unit Compatibility
1-5 Precautions
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SECTION 2
Unit Components and Switch Settings . . . . . . . . . . . . . . .
2-1 C1000H-SLK11/SLK21-V1 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 C200HW-SLK13/14/23/24 Components
2-3 Indicators
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2-4 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5 Setting Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 Mounting Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Power Supply Unit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Bus Connector (C200HX/HG/HE/HS/H only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4 Cable Connection
3-5 Dimensions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4
Basic Communications . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1 SYSMAC LINK System Communications
4-2 Setting Node Numbers
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 Operating Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4 PC Mode at Start-up (C1000H only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5 Polling Unit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-6 Setting Network Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-7 Network Parameter Initialization
4-8 Active Node Flags
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5
Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Data Link Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Creating Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3 Automatic Generation of Data Link Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-4 Manual Generation of Data Link Tables
5-5 Data Link Table Examples
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-6 Restrictions on C200HW-SLK13/14/23/24 Data Link Areas
5-7 Controlling Data Links
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-8 Data Link Precautions
5-9 Data Link Status
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-10 Data Link Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS
SECTION 6
Data Read/Write Services . . . . . . . . . . . . . . . . . . . . . . . . .
6-1 About Data Read/Write Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2 NETWORK READ/WRITE Instructions
6-3 CV-mode Command/Response Format
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4 Memory Area Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5 CV-mode Commands for PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6 CV-mode Commands for SYSMAC LINK Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 7
Special Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1 Remote Programming and Monitoring
7-2 RAS Functions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 8
Error Processing
8-1 Troubleshooting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2 Network Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 9
Inspection and Maintenance . . . . . . . . . . . . . . . . . . . . . . .
9-1 Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-2 Replacing SYSMAC LINK Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendices
A Standard Models
B Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C Internal Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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About this Manual:
This manual describes the installation and operation of C-series SYSMAC LINK Units and includes the sections described below.
Please read this manual completely and be sure you understand the information provide before attempting to install and operate a C-series SYSMAC LINK System.
Section 5 Introduction introduces the features and operations possible with SYSMAC LINK Units. It also describes the possible system configurations and compatibility with PCs and other Link Units.
Section 6 Unit Components and Switch Settings presents the names and functions of the SYSMAC
LINK Units’ components and the switch settings.
Section 7 Installation explains how to install SYSMAC LINK Systems.
Section 8 Basic Communications introduces the token bus method of communications used in SYS-
MAC LINK Systems and explains the basic settings necessary for operation.
Section 9 Data Links describes the operation of data links, procedures required to establish data links, and methods of monitoring data link operations.
Section 10 Data Read/Write Services describes the data read/write services, which provide data transmission between nodes and distributed control. The data read/write services include the NETWORK
READ (RECV(98)) and NETWORK WRITE (SEND(90)) and instructions and CV-mode commands.
Section 11 Special Services provides information on remote programming and monitoring and RAS functions.
Section 12 Error Processing provides information to help identify and correct errors that might occur in the System.
Section 13 Inspection and Maintenance describes periodic maintenance required by the System and how to replace a SYSMAC LINK Unit.
!
WARNING Failure to read and understand the information provided in this manual may result in personal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.
ix
PRECAUTIONS
This section provides general precautions for using the Programmable Controller and related devices.
The information contained in this section is important for the safe and reliable application of the PC. You must read this section and understand the information contained before attempting to set up or operate a PC system.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii xii xii xiii xiii xi
Safety Precautions
1
2
5
Intended Audience
This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).
• Personnel in charge of installing FA systems.
• Personnel in charge of designing FA systems.
•
Personnel in charge of managing FA systems and facilities.
General Precautions
The user must operate the product according to the performance specifications described in the relevant manuals.
Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines, and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative.
Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms.
This manual provides information for programming and operating the Unit. Be sure to read this manual before attempting to use the Unit and keep this manual close at hand for reference during operation.
!
WARNING It is extremely important that a PC and all PC Units be used for the specified purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a PC system to the above-mentioned applications.
3 Safety Precautions
!
WARNING Do not attempt to take any Unit apart while the power is being supplied. Doing so may result in electric shock.
!
WARNING Do not touch any of the terminals or terminal blocks while the power is being supplied. Doing so may result in electric shock.
!
WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may result in malfunction, fire, or electric shock.
xii
Application Precautions
4
5
Operating Environment Precautions
!
Caution Do not operate the control system in the following locations:
• Locations subject to direct sunlight.
• Locations subject to temperatures or humidity outside the range specified in the specifications.
• Locations subject to condensation as the result of severe changes in temperature.
•
Locations subject to corrosive or flammable gases.
•
Locations subject to dust (especially iron dust) or salts.
•
Locations subject to exposure to water, oil, or chemicals.
• Locations subject to shock or vibration.
!
Caution Take appropriate and sufficient countermeasures when installing systems in the following locations:
• Locations subject to static electricity or other forms of noise.
•
Locations subject to strong electromagnetic fields.
•
Locations subject to possible exposure to radioactivity.
•
Locations close to power supplies.
!
Caution The operating environment of the PC system can have a large effect on the longevity and reliability of the system. Improper operating environments can lead to malfunction, failure, and other unforeseeable problems with the PC system. Be sure that the operating environment is within the specified conditions at installation and remains within the specified conditions during the life of the system.
5 Application Precautions
Observe the following precautions when using the PC system.
!
WARNING Always heed these precautions. Failure to abide by the following precautions could lead to serious or possibly fatal injury.
• Always ground the system to 100 Ω or less when installing the Units. Not connecting to a ground of 100 Ω or less may result in electric shock.
• Always turn OFF the power supply to the PC before attempting any of the following. Not turning OFF the power supply may result in malfunction or electric shock.
• Mounting or dismounting Power Supply Units, I/O Units, CPU Units,
Memory Units, or any other Units.
•
Assembling the Units.
•
Setting DIP switches or rotary switches.
• Connecting cables or wiring the system.
• Connecting or disconnecting the connectors.
!
Caution Failure to abide by the following precautions could lead to faulty operation of the
PC or the system, or could damage the PC or PC Units. Always heed these precautions.
• Fail-safe measures must be taken by the customer to ensure safety in the event of incorrect, missing, or abnormal signals caused by broken signal lines, momentary power interruptions, or other causes.
xiii
Application Precautions 5
• Always use the power supply voltages specified in this manual. An incorrect voltage may result in malfunction or burning.
•
Take appropriate measures to ensure that the specified power with the rated voltage and frequency is supplied. Be particularly careful in places where the power supply is unstable. An incorrect power supply may result in malfunction.
• Install external breakers and take other safety measures against short-circuiting in external wiring. Insufficient safety measures against short-circuiting may result in burning.
• Do not apply voltages to the Input Units in excess of the rated input voltage.
Excess voltages may result in burning.
•
Do not apply voltages or connect loads to the Output Units in excess of the maximum switching capacity. Excess voltage or loads may result in burning.
• Disconnect the functional ground terminal when performing withstand voltage tests. Not disconnecting the functional ground terminal may result in burning.
•
Be sure that all the mounting screws, terminal screws, and cable connector screws are tightened to the torque specified in this manual. Incorrect tightening torque may result in malfunction.
• Leave the label attached to the Unit when wiring. Removing the label may result in malfunction if foreign matter enters the Unit.
• Remove the label after the completion of wiring to ensure proper heat dissipation. Leaving the label attached may result in malfunction.
•
Double-check all wiring and switch settings before turning ON the power supply. Incorrect wiring may result in burning.
• Wire correctly. Incorrect wiring may result in burning.
•
Mount Units only after checking terminal blocks and connectors completely.
•
Be sure that the terminal blocks, Memory Units, expansion cables, and other items with locking devices are properly locked into place. Improper locking may result in malfunction.
• Check the user program for proper execution before actually running it on the
Unit. Not checking the program may result in an unexpected operation.
•
Confirm that no adverse effect will occur in the system before attempting any of the following. Not doing so may result in an unexpected operation.
• Changing the operating mode of the PC.
• Force-setting/force-resetting any bit in memory.
•
Changing the present value of any word or any set value in memory.
• Resume operation only after transferring to the new CPU Unit the contents of the DM Area, HR Area, and other data required for resuming operation. Not doing so may result in an unexpected operation.
•
Do not pull on the cables or bend the cables beyond their natural limit. Doing either of these may break the cables.
•
Do not place objects on top of the cables or other wiring lines. Doing so may break the cables.
• Use crimp terminals for wiring. Do not connect bare stranded wires directly to terminals. Connection of bare stranded wires may result in burning.
•
When replacing parts, be sure to confirm that the rating of a new part is correct.
Not doing so may result in malfunction or burning.
• Before touching a Unit, be sure to first touch a grounded metallic object in order to discharge any static built-up. Not doing so may result in malfunction or damage.
xiv
SECTION 1
Introduction
This section introduces the features and operations of the SYSMAC LINK Units. It also describes the possible system configurations and compatibility with PCs and other Link Units.
1-1 OMRON Network Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 SYSMAC LINK System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-1 Single-level Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-2 Multilevel System
1-4 Unit Compatibility
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-1 Compatibility with PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-2 Compatibility with Other Link Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
6
5
6
8
2
3
4
4
1
OMRON Network Systems Section 1-1
1-1 OMRON Network Systems
As production processes become more complex and diversified, it is necessary to develop networks that link control components such as PCs to more powerful host computers in LANs that control entire production processes.
OMRON provides 3 types of network systems for large, medium, and smallscale networks.
SYSMAC NET Link System The SYSMAC NET Link System is a high-speed, high-capacity LAN. It can be used as a gateway to a general LAN composed of different kinds of computers or to an Ethernet to create a large-scale network.
SYSMAC LINK System The SYSMAC LINK System provides high-speed, high-capacity communications between any nodes (PCs, or IBM-PC/AT or compatible running SSS) in the network, as well as remote monitoring and programming functions and automatic data transfer via data links.
SYSMAC BUS System The SYSMAC BUS Remote I/O System is used to link a single PC to remote racks called Slave Racks and/or components (e.g., I/O Terminals or Programmable Terminals) to form a small, decentralized control network.
Depending on the size and complexity of the production process, these systems can be used alone or in combination as shown below.
Host computer
PC SYSMAC NET Link System Bridge
SYSMAC NET
Link System
PC PC
SYSMAC LINK System
PC PC PC
SYSMAC BUS Remote I/O System
Host computer
Expansion
I/O Rack
Expansion
I/O Rack
I/O Terminal
Expansion
I/O Rack
2
SYSMAC LINK System Features
1-2 SYSMAC LINK System Features
Section 1-2
SYSMAC LINK Units are equipped with a variety of special features.
High Speed, Reliability, and
Flexibility
The specialized communications LSIs used in all SYSMAC LINK Units deliver high speed, reliability, and flexibility in an advanced data link system, while optical fiber cable systems provide high-speed communications with unparalleled immunity to noise.
In the event of an error or failure in the polling unit, another node automatically takes over management of the SYSMAC LINK System without stopping the entire network. SSS or CVSS running on an IBM-PC/AT or compatible can monitor and/or program PCs anywhere in the network via the SYSMAC
LINK System.
Distributed Control with
Data Links
The data link function transfers data to and from other nodes automatically, establishing simple but powerful peer-to-peer links between nodes. Data links can be generated automatically between 2, 4, 8, or 16 nodes by changing the value of just one byte in the AR Area of the start-up node. Or the user can use the flexibility of manually generating data links to eliminate unused link words, improve data link I/O response time, and to even create several data link groups in one network.
The data link communications cycle time can be fixed at a constant value, so even simultaneous remote programming/monitoring and NETWORK READ/
WRITE instruction (RECV(98)/SEND(90)) execution have no effect on the data link I/O response time.
Active PC Transmission PCs can communicate actively with other PCs in the network. The four functions listed below can be performed from the PC’s program using the SEND(90) and
RECV(98) instructions (SEND(192), RECV(193), and CMND(194) in the CVseries).
1, 2, 3...
1. Broadcast transmission
2. Response monitoring time setting (response time-out setting)
3. Transmit retry setting
4. Enabling/disabling response
RAS Functions SYSMAC LINK Units are equipped with three RAS functions (RAS is an acronym for reliability, availability, and serviceability). The Polling Unit Backup and
Failed Node Bypass (optical systems only) functions prevent the network from failing when one Unit fails. The Internode Echo Test function aids in communications troubleshooting.
Remote monitoring of the network’s operating status also aids in troubleshooting and quick correction of communications problems.
Improvements on the
C200HS-SLK12/SLK22
(C200HW-SLK13/SLK14/
SLK23/SLK24)
Up to 2,966 words can be linked using the data link function with the C200HW-
SLK14/SLK24.
The input interrupt response time is 1 ms maximum when the new SYSMAC
LINK Units are mounted to a C200HX, C200HG, or C200HE PC.
3
System Configuration Section 1-3
1-3 System Configuration
Up to 62 nodes (including all PCs and, in coaxial systems, computers) can be connected in a SYSMAC LINK Network via SYSMAC LINK Units or Network
Service Boards. One of the Units in the network will function as the polling unit and the remainder will be polled units. The polling unit manages the System communications during and after configuration.
1-3-1 Single-level Systems
The following diagrams show the general configuration of Single-level SYS-
MAC LINK Systems connected with coaxial and optical fiber cables. The Systems are considered single-level because each PC has only one SYSMAC
LINK Units mounted to it.
The SSS/CVSS connection is not a required part of the System. It is shown here because of its usefulness in monitoring and controlling not only the operation of the SYSMAC LINK System itself, but the general operation of all the PCs connected in the System.
Coaxial System The abbreviation NSB indicates a SYSMAC LINK Network Service Board.
CPU Rack CPU Rack CPU Rack
Computer
Optical System
NSB
SYSMAC LINK Unit
CPU Unit
SYSMAC LINK Unit
CPU Unit
SYSMAC LINK Unit
CPU Unit
SSS/
CVSS
Note Terminators must be connected to the Units on the ends of the network.
The abbreviation APS indicates an Auxiliary Power Supply Unit.
CPU Rack CPU Rack CPU Rack CPU Rack
APS
SYSMAC LINK Unit
CPU Unit
Backup Power Supply
APS
SYSMAC LINK Unit
CPU Unit
APS
SYSMAC LINK Unit
CPU Unit
APS
SYSMAC LINK Unit
CPU Unit
SSS/
CVSS
4
System Configuration
1-3-2 Multilevel System
Section 1-3
Each PC can have up to two SYSMAC LINK Units mounted. Each SYSMAC
LINK Unit will connect it to a SYSMAC LINK Network, i.e., if a PC has two
SYSMAC LINK Units mounted, it is part of two SYSMAC LINK Networks and the overall system is considered a Multilevel SYSMAC LINK System. Operating levels, which are described later in this manual, are used to differentiate between the two Networks to which one PC might belong.
The SSS/CVSS connection is not a required part of the System. It is shown here because of its usefulness in monitoring and controlling not only the operation of the SYSMAC LINK System itself, but the general operation of all the PCs connected in the same Network(s) as the PC to which the SSS/
CVSS is connected.
The abbreviation SLK indicates a SYSMAC LINK Unit.
Subsystem 1 operating level 1
CPU Rack CPU Rack CPU Rack
CPU Rack
SYSMAC LINK Unit
SYSMAC LINK Unit
CPU Unit
SYSMAC LINK Unit
CPU Unit
CPU Rack
Subsystem 2 operating level 0
SSS/
CVSS
SYSMAC LINK Unit
CPU Unit
SYSMAC LINK Unit
CPU Unit
CPU Rack
SYSMAC LINK Unit
SYSMAC LINK Unit
CPU Unit
SYSMAC LINK Unit
CPU Unit
SSS/
CVSS
Subsystem 3 operating level 1
CPU Rack
SYSMAC LINK Unit
CPU Unit
Note Terminators must be connected to the Units on the ends of networks connected by coaxial cable.
5
Unit Compatibility
1-4 Unit Compatibility
Section 1-4
There are some restrictions regarding the models and versions of PCs to which SYSMAC LINK Units can be mounted. There are also limitations in using SYSMAC LINK Units together with other Link Units. These limitations are described in this section.
1-4-1 Compatibility with PCs
The following table shows which CPU Units are compatible with which SYS-
MAC LINK Units. The SYSMAC LINK Units cannot be used with other CPU
Units or with a C2000H Duplex System (even one set for Simplex operation.)
A Communications Board equipped with a Link Interface (C200HW-
COM01/04-EV1) is required to mount a SYSMAC LINK Unit to a C200HX,
C200HG, or C200HE PC.
SYSMAC LINK Unit
C1000H-SLK21-V1
C1000H-SLK11
C200HW-SLK23
C200HW-SLK24
C200HW-SLK13
C200HW-SLK14
Cable
Coaxial
Optical fiber
Coaxial
Optical fiber
Applicable CPU Unit(s)
C1000H-CPU01-EV1 or
C2000H-CPU01-EV1
C200H-CPU11-E
C200H-CPU31-E
C200HS-CPU31-E
C200HS-CPU33-E
C200HE-CPU32-E
C200HE-CPU42-E
C200HG-CPU43-E
C200HG-CPU53-E
C200HG-CPU63-E
C200HX-CPU34-E
C200HX-CPU44-E
C200HX-CPU54-E
C200HX-CPU64-E
1-4-2 Compatibility with Other Link Units
C1000H-SLK11 and C1000H-SLK21-V1
The following combinations of Units can be mounted on a single C1000H or
C2000H PC.
1, 2, 3...
1. Two SYSMAC LINK Units
2. One SYSMAC LINK Unit and one SYSMAC NET Link Unit
3. One SYSMAC LINK Unit and one Rack-mounting Host Link Unit
In addition to the Units in the above combinations you may also mount one
CPU Unit-mounting Host Unit or up to two PC Link Units. Only one PC Link
Unit can be mounted on the C500-BC081 and C500-BC051 Backplanes, because these Backplanes have only 3 linkable slots.
6
Unit Compatibility Section 1-4
When combining Units as shown above, use the following models.
Name
SYSMAC LINK Unit
SYSMAC NET Link Unit
Rack-mounting Host Link Units
Model
C1000H-SLK11
C1000H-SLK21-V1
C500-SNT31-V4
Remarks
Optical type
Coaxial type
Other versions cannot be used.
Other versions cannot be used.
CPU Unit-mounting Host Link
Units
PC Link Units
C500-LK103
C500-LK103-P
C500-LK203
3G2A6-LK101-EV1
3G2A6-LK101-PEV1
3G2A6-LK201-EV1
3G2A6-LK202-EV1
C500-LK009-V1
C500-LK009
---
---
!
Caution Be sure to set a unique operating level for each system when combining SYS-
MAC LINK Units, SYSMAC NET Link Units, and/or Host Link Units (SYSMAC
WAY) on the same PC.
C200HW-SLK13, C200HW-SLK14, C200HW-SLK23, and C200HW-SLK24
The following combinations of Units can be mounted on a single PC. Some power supplies might not have sufficient capacity for all system configurations; be sure to check power supply requirements and capacities carefully.
1, 2, 3...
1. Two SYSMAC LINK Units
2. One SYSMAC LINK Unit and one SYSMAC NET Link Unit
In addition to the Units in the above combinations you may also mount one
CPU Unit-mounting Host Link Unit, up to two rack-mounting Host Link Units, or up to two PC Link Units. For the C200HX, C200HG, or C200HE PC, one
SYSMAC LINK Unit and one PC Card Unit may be mounted.
When combining Units as shown above, use the following models.
Name
SYSMAC LINK Unit
SYSMAC NET Link Unit
PC Card Unit
Rack-mounting Host Link Units
Model
C200HW-SLK13
C200HW-SLK14
C200HW-SLK23
C200HW-SLK24
C200HS-SNT32
C200HW-PCU01
Remarks
Optical type
Coaxial type
---
Can be used only with with the C200HX,
C200HG, or C200HE.
---
CPU Unit-mounting Host Link
Units
PC Link Units
C200H-LK101 (-PV1)
C200H-LK201-V1
C200H-LK202-V1
3G2A6-LK101-EV1
3G2A6-LK101-PEV1
3G2A6-LK201-EV1
3G2A6-LK202-EV1
C200H-LK401
Cannot be used with the C200HS, C200HX,
C200HG, or C200HE.
---
Note Be sure to set a unique operating level for each system when combining SYS-
MAC LINK Systems, SYSMAC NET Link Systems, and the PC Card Unit on the same PC.
7
Precautions Section 1-5
1-5 Precautions
•
A Bus Connector is required to mount the C200HW-SLK13, C200HW-SLK14,
C200HW-SLK23, or C200HW-SLK24. Refer to
Section 3 Installation
for details.
•
Be sure to set different operating levels when mounting a SYSMAC LINK Unit on the same PC with a SYSMAC NET Link Unit, Host Link Unit (Rack-mounting type), or PC Card Unit. Refer to
Section 2 Unit Components and Switch
Settings
for details.
• The input interrupt response speed is 1 ms max. for the C200HW-SLK13,
C200HW-SLK14, C200HW-SLK23, or C200HW-SLK24 when mounted to the
C200HX/HG/HE and 10 ms max. when mounted to the C200H or C200HS.
•
The C200HW-SLK13, C200HW-SLK14, C200HW-SLK23, or C200HW-
SLK24 are totally upwardly compatible from the C200HS-SLK12 and
C200HS-SLK22.
• The power supply capacity depends on the CPU Unit that is being used. Refer to you PC’s
Installation Guide
for details and do not run over the power supply capacity.
8
SECTION 2
Unit Components and Switch Settings
The names and functions of the SYSMAC LINK Units’ components and switch settings are described in this section.
2-1 C1000H-SLK11/SLK21-V1 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 C200HW-SLK13/14/23/24 Components
2-3 Indicators
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4-1 C1000H-SLK11/SLK21-V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4-2 C200HW-SLK13/14/23/24
2-5 Setting Switches
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5-1 Node Number Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5-2 C1000H-SLK11/SLK21-V1 DIP Switch 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5-3 C200HW-SLK13/14/23/24 DIP Switches 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . .
14
15
15
16
16
10
12
13
14
14
9
C1000H-SLK11/SLK21-V1 Components Section 2-1
2-1 C1000H-SLK11/SLK21-V1 Components
Front
C1000H-SLK11
SLK11
RUN
ERC
P/S
ERH
INS
SD
TS
M/S
RD
LNK
Indicators
Indicate operational status.
Node number switches
Used to set the node number.
Reset switch
Used to reinitialize the SYSMAC
LINK Unit.
DIP switch 1
Remove this cover to gain access to
DIP switch 1. The switch is used to set a variety of operating parameters.
Power supply connector
Connect to the Auxiliary Power
Supply Unit.
C1000H-SLK21-V1
SLK21-V1
RUN
ERC ERH
INS
SD
TS
M/S
RD
LNK
Optical fiber connectors
Used to connect optical fiber cables.
Coaxial connector
Used to connect coaxial cable.
Note Do not push the Reset Switch on SYSMAC LINK Units when the RUN indicator is not lit (watchdog timer error).
10
C1000H-SLK11/SLK21-V1 Components
Back
Section 2-1
The backs of the C1000H-SLK11 and C1000H-SLK21-V1 are identical.
Mounting screw
Secures Unit to Backplane
Connector
Used to connect the SYSMAC
LINK Unit to the Rack.
Mounting screw
Secures Unit to Backplane
11
C200HW-SLK13/14/23/24 Components
2-2 C200HW-SLK13/14/23/24 Components
Front
C200HW-SLK13/14
SLK14
RUN
ERC
INS
SD
P/S
ERH
M/S
RD
TS
LNK
Indicators
Indicate operational status.
Node number switches
Used to set node number.
DIP switch 1
Remove this cover to gain access to
DIP switch 1. The switch is used to set a variety of operating parameters.
SYSMAC LINK Unit Connector
Used to connect the SYSMAC
LINK Unit to the CPU Unit.
C200HW-SLK23/24
SLK24
RUN
ERC
INS
SD
ERH
M/S
RD
TS
LNK
Section 2-2
Back
Power supply connector
Connect to the Auxiliary Power
Supply Unit.
Coaxial connector
Used to connect coaxial cable.
Optical fiber connectors
Used to connect optical fiber cables.
The backs of the C200HW-SLK13/14 and C200HW-SLK23/24 are identical.
DIP switch 2
Used to set a variety of operating parameters.
Connector
Used to connect the
SYSMAC LINK Unit to the Rack.
12
Indicators Section 2-3
2-3 Indicators
The status of the SYSMAC LINK Unit is indicated by the indicators shown below.
The Units that use coaxial cables (C1000H-SLK21-V1 and C200HW-SLK23/24) are not equipped with the P/S indicator.
C1000H-SLK11 C1000H-SLK21-V1 C200HW-SLK13/14 C200HW-SLK23/24
RUN
ERC
P/S
ERH
RUN
ERC ERH
RUN
ERC
INS
SD
RUN
ERC
INS
SD
INS
SD
TS
M/S
RD
LNK
INS
SD
TS
M/S
RD
LNK
P/S
ERH
M/S
RD
TS
LNK
ERH
M/S
RD
TS
LNK
RUN
Name
Indicator
Color
Green
Meaning
Condition
Lit
Not lit
Lit
Unit is operating normally.
Watchdog timer error has occurred.
Power is being supplied from the Auxiliary Power Supply Unit.
P/S
(power supply on, optical units only)
Green
ERC
(communications error)
ERH (PC error)
INS (Network inclusion)
M/S (polling unit)
SD (transfer)
RD (receive)
TS (test)
LNK (data link)
Red
Red
Orange
Orange
Orange
Orange
Orange
Orange
Not lit
Lit
Not lit
Lit
Not lit
Lit
Not lit
Lit
Not lit
Lit
Not lit
Lit
Not lit
Lit
Flashing
Not lit
Lit
Flashing
Not lit
Power is not being supplied from the Auxiliary Power Supply Unit.
Communications error has occurred, node number setting is incorrect, or same node number has been set twice.
None of the above errors has occurred.
PC CPU, PC model, PC version, PC interface, or EEPROM error has occurred.
None of the above errors has occurred.
Unit is part of Network.
Unit is not part of Network.
Unit is polling unit.
Unit is not part of Network or is polled unit.
Unit is sending data.
Unit is not sending data.
Unit is receiving data.
Unit is not receiving data
Test is being executed.
Test setting error has occurred.
Test is not being executed.
Unit is part of active data link.
Data link error has occurred.
Unit is not part of active data link.
13
Switches Section 2-4
2-4 Switches
2-4-1 C1000H-SLK11/SLK21-V1
DIP switch 1 can be accessed by removing the cover from the front of the
Unit with a standard screwdriver.
x10 1
NODE NO.
x10 0
RESET
SW
3
2
5
4
1
8
7
6
Node number switches
Used to set node number.
DIP switch 1
Standard screwdriver
2-4-2 C200HW-SLK13/14/23/24
The node number switches and DIP switch 1 are located on the front of the
Unit, and DIP switch 2 is located on the back.
Front x10 1
NODE NO.
x10 0
SW
2
1
4
3
Node number switches
Used to set node number.
DIP switch 1
14
Setting Switches
Back
Section 2-5
2
1
4
3 DIP switch 2
2-5 Setting Switches
Switch settings determine how the SYSMAC LINK Units will work together in a Network. Be sure to turn the power off to the PC before setting the switches. Errors in switch settings, which may not always be detected by the
System, can cause faulty data communications. Set and check all switch settings carefully.
2-5-1 Node Number Switches
Turn off the power to the PC before setting the node number switches. Node number switches determine the node number. The left switch sets the tens digit; the right switch sets the ones digit. The node number must be between
01 and 62. Each SYSMAC LINK Unit in a Network must have a unique node number.
Use a small flat-blade screwdriver to set node number switches, being careful not to damage them.
Note Units in the same network must have unique node numbers.
15
Setting Switches Section 2-5
2-5-2 C1000H-SLK11/SLK21-V1 DIP Switch 1
Turn off the power to the PC before setting the DIP switch. DIP switch 1 is used to control the communications test, data link activation, operating level,
PC operating mode when power is applied, network parameter initialization, and polling/polled unit operation. Refer to the pages indicated in the table for more details on these settings.
6 1
7 2
8 2
1
2
3
4 1
5
Pin
When ON
Test activated.
Data link activated.
Function
When OFF
Test stopped.
Data link stopped.
Operating level 0 Operating level 1
For maintenance use only. Leave this switch set to OFF.
PC enters MONITOR mode at start-up.
PC enters usual mode at start-up.
Not used. Leave this switch set to OFF.
Network Parameters initialized.
Network Parameters not initialized.
Polled unit Polling unit
Page
111
58
38
---
38
---
40
39
Note 1. Pins 4 and 6 should always be OFF.
2. Pins 7 and 8 are normally OFF.
2-5-3 C200HW-SLK13/14/23/24 DIP Switches 1 and 2
Turn off the power to the PC before setting the DIP switches. DIP switch 1 is used to control the communications test, data link activation, and operating level. DIP switch 2 is used to control network parameter initialization and polling/polled unit operation Refer to the pages indicated in the tables for more details on these settings.
DIP Switch 1
(Front of the Unit)
Pin Page
1
2
3
4*
When ON
Test activated.
Data link activated.
Function
When OFF
Test stopped.
Data link stopped.
Operating level 0 Operating level 1
For maintenance use only. Leave this switch set to OFF.
111
58
38
---
DIP Switch 2
(Back of the Unit)
Note *Pin 4 should always be OFF.
1 1
2
1
3 2
4 2
Pin Function
When ON
Not used. Leave this switch set to OFF.
When OFF
Not used. Leave this switch set to OFF.
Network Parameters initialized.
Network Parameters not initialized.
Polled unit Polling unit
Page
---
---
40
39
Note 1. Pins 1 and 2 should always be OFF.
2. Pins 3 and 4 are normally OFF.
16
SECTION 3
Installation
This section explains how to install SYSMAC LINK Systems.
3-1 Mounting Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-1 C1000H
3-1-2 C2000H
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-3 C200H/C200HS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-4 C200HX/C200HG/C200HE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Power Supply Unit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-1 Specifications and Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-2 Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Bus Connector (C200HX/HG/HE/HS/H only)
3-4 Cable Connection
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4-1 Coaxial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4-2 Optical Fiber Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25
26
26
28
20
20
22
33
18
18
18
18
19
17
Mounting Position Section 3-1
3-1 Mounting Position
Note 1. Turn off power to the PC before mounting Units to the Backplane.
2. Tighten Backplane mounting screws firmly.
3-1-1 C1000H
The C1000H-SLK11/SLK21-V1 can be mounted in one of the first three slots to the left of (i.e., next to) the CPU Unit when using the 3G2A5-BC081/051
Backplane, and in one of the first five slots to the left of the CPU Unit when using a C500-BC082/052 Backplane.
3G2A5-BC081/051 Backplane:
Mount only in one of the three slots immediately to the left of the CPU Unit.
CPU Rack
I/O
Control
Unit
CPU
Unit
Power
Supply
Unit
C500-BC082/052 Backplane:
Mount only in one of the five slots immediately to the left of the CPU Unit.
3-1-2 C2000H
C1000H-SLK11/SLK21-V1 can be mounted in any slot in 3G2C5-BC061
Backplanes.
CPU Rack
I/O
Control
Unit
CPU
Unit
Power
Supply
Unit
3G2C5-BC061
Any slot
3-1-3 C200H/C200HS
The C200HW-SLK13/14/23/24 must be mounted in one of the two slots immediately to the left of the CPU Unit when using the C200H-BC081-V2 or
C200H-BC051-V2 Backplane.
18
Mounting Position Section 3-1
If only one Unit is mounted, it must in the slot immediately to the left of the CPU
Unit. If two SYSMAC LINK Units, or one together with a SYSMAC NET Link Unit, are mounted, the SYSMAC LINK Unit can be mounted in either of the two slots immediately to the left of the CPU Unit.
CPU Rack
CPU Unit
CPU Rack
C200H-BC081-V2/BC051-V2 Backplane
The two slots to left of CPU Unit if two Units are mounted.
CPU Unit
C200H-BC081-V2/BC051-V2 Backplane
The slot to left of CPU Unit if only one Unit is mounted.
Note Refer to
1-4-2 Compatibility with other Link Units
for details on using a C200HW-
SLK13/14/23/24 SYSMAC LINK Unit with a SYSMAC NET Link Unit.
3-1-4 C200HX/C200HG/C200HE
The C200HW-SLK13/14/23/24 must be mounted in one of the two slots immediately to the left of the CPU Unit when using a C200HW-
BC101/081/051/031 Backplane. If only one Unit is mounted, it must be in the slot immediately to the left of the CPU Unit. If two SYSMAC LINK Units, or one together with a SYSMAC NET Link Unit, are mounted, the SYSMAC
LINK Unit can be mounted in either of the two slots immediately to the left of the CPU Unit. If one SYSMAC LINK Unit and one PC Card Unit are mounted, the SYSMAC LINK Unit must be in the slot immediately to the left of the CPU
Unit.
CPU Rack CPU Rack
CPU Unit CPU Unit
C200HW-BC101/081/051/031 Backplane
Two slots to left of CPU Unit if two Units are mounted.
CPU Rack
C200HW-BC101/081/051/031 Backplane
Slot to left of CPU Unit if only one Unit is mounted.
CPU Unit C200HW-BC101/081/051/031 Backplane
Two slots to left of CPU Unit if the SYSMAC LINK
Unit and PC Card Unit are mounted.
PC Card Unit SYSMAC LINK Unit
Note 1. Refer to
1-4-2 Compatibility with other Link Units
for details on using a
C200HW-SLK13/14/23/24 SYSMAC LINK Unit with a SYSMAC NET Link
Unit.
19
Power Supply Unit Connection Section 3-2
2. A Communications Board equipped with a Link Interface (C200HW-
COM01/04-EV1) is required when mounting a SYSMAC LINK Unit to a
C200HX, C200HG, or C200HE PC.
3-2 Power Supply Unit Connection
SYSMAC LINK Units that are connected with optical fiber cable (the
C1000H-SLK11 and C200HW-SLK13/14) can be connected to an Auxiliary
Power Supply Unit to provide backup power. By connecting the Unit to an
Auxiliary Power Supply Unit, the entire system won’t go down if the Unit fails for some reason.
The table below shows which Power Supply Units can be connected to the
SYSMAC LINK Units.
SYSMAC LINK Unit
C1000H-SLK11
C200HW-SLK13/14
Corresponding Power Supply
C1000H-APS01
C200H-APS03
3-2-1 Specifications and Components
Specifications
The following specifications apply to both the C1000H-APS01 and
C200H-APS03.
Item
Power supply voltage
Acceptable voltage range
Power consumption
Weight
Other
Specification
100 to 120 VAC or 200 to 240 VAC (switchable)
85 to 132 VAC or 170 to 264 VAC
40 VA max.
0.5 kg max.
Conform to C-series specifications
20
Power Supply Unit Connection Section 3-2
Auxiliary Power Supply Unit Components
C1000H-APS01
The diagram below shows the components of the C1000H-APS01 Auxiliary
Power Supply Unit and their functions.
APS01
P/S
Indicators
Indicate operational status.
C200H-APS03
P/S1
P/S2
Power supply connector 1
Supplies backup power to a SYSMAC LINK Unit.
Power supply connector 2
Supplies backup power to a SYSMAC LINK Unit.
L1
100-
240
VAC
L2/N
LG
GR
Power supply terminals
Backup AC power is supplied through these terminals.
Ground
Connect LG to a separate 100 W max. ground to prevent electrical shock.
Connect GR to a separate 100
W
max. ground to reduce noise and prevent electrical shock.
L1
100-
240
VAC
L2/N
LG
GR
The diagram below shows the components of the C200H-APS03 Auxiliary
Power Supply Unit and their functions.
APS03
P/S Indicators
Indicate operational status.
CN
(OUT)
Power supply connector
Supplies backup power to a SYSMAC LINK Unit.
Power supply terminals
Backup AC power is supplied through these terminals.
Ground
Connect LG to a separate 100
W
max. ground to prevent electrical shock.
Connect GR to a separate 100 W max. ground to reduce noise and prevent electrical shock.
21
Power Supply Unit Connection
Power Cables
Section 3-2
The following table shows which power cables are included with the
C1000H-APS01 and C200H-APS03 as accessories.
Unit Power cable Notes
C1000H-APS01 C1000H-CN111 1 cable provided
C200H-APS03 C200H-CN111 1 cable provided (for 1 SYSMAC LINK Unit)
When connecting 2 SYSMAC LINK Units to an Auxiliary Power Supply Unit, order the following cables separately as required.
Unit Power cable Notes
C1000H-APS01 C1000H-CN111 Same as the one provided with the Unit.
C200H-APS03 C200H-CN211 For connection to 2 SYSMAC LINK Units
Indicators
Indicator
Name Color Condition
P/S Green Lit
Not lit
Meaning
Power is being supplied to the SYSMAC LINK Unit.
Power is not being supplied to the SYSMAC LINK
Unit.
Precautions
The backup function will be disabled when the PC’s power is off, so connect the power supply terminals to an AC power supply other than the one connected to the PC.
Always supply power to the Power Supply Unit before supplying power to the
PC.
Note 1. Turn off the power supply to the PC before mounting the Power Supply Unit.
2. Firmly tighten the Backplane mounting screws for the Power Supply Unit.
3. Leave the protective sticker in place on the Unit when wiring to prevent clippings and other foreign matter from entering the Unit during the wiring procedure.
4. Remove the protective sticker after completion of wiring before turning on power to the Unit. If Unit is operated with the protective sticker in place, the
Unit may overheat, causing operational errors.
5. Do not pull on the cable. Pulling on the cable could break wires inside.
6. Do not bend the cable past the minimum radius. Bending the cable too far could break wires inside.
3-2-2 Installation and Wiring
C1000H/C2000H
Mounting Position The C1000H-APS01 can be mounted in any slot, but the power cables are relatively short, so the Power Supply Unit cannot be more than 2 slots from the SYS-
MAC LINK Unit. One Power Supply Unit can supply backup power to two SYS-
MAC LINK Units, as shown below.
APS SLK SLK CPU PS
22
Power Supply Unit Connection Section 3-2
In the following diagram, a Power Supply Unit is connected to just one SYS-
MAC LINK Unit.
APS SLK CPU PS
Wiring The Power Supply Unit and SYSMAC LINK Unit are connected by a power supply cable, as shown below. The cable can be plugged into either power supply connector on the Power Supply Unit.
Power cable
C200H/C200HS
Mounting Position
Power Supply Unit or
SYSMAC LINK Unit power supply connector
The tab should be on the left.
Note 1. Turn off the power supply to the PC before mounting the Power Supply Unit.
2. Firmly tighten the Backplane mounting screws for the Power Supply Unit.
3. Leave the protective sticker in place on the Unit when wiring to prevent clippings and other foreign matter from entering the Unit during the wiring procedure.
4. Remove the protective sticker after completion of wiring before turning on power to the Unit. If Unit is operated with the protective sticker in place, the
Unit may overheat, causing operational errors.
5. Do not pull on the cable. Pulling on the cable could break wires inside.
6. Do not bend the cable past the minimum radius. Bending the cable too far could break wires inside.
The C200H-APS03 can be mounted in any slot, but the power cable included with the Unit will only reach to the next slot, so the Power Supply Unit must be mounted next to the SYSMAC LINK Unit.
In the following diagram, a Power Supply Unit is connected to just one SYS-
MAC LINK Unit.
APS SLK CPU
23
Power Supply Unit Connection Section 3-2
One Power Supply Unit can supply backup power to two SYSMAC LINK
Units. In this case an optional power cable that will supply the two SYSMAC
LINK Units must be purchased separately. One branch of the cable will reach two slots from the Power Supply Unit, as shown below.
APS SLK SLK CPU
Wiring
Note Connect the C200H-APS01 Power Supply Unit (for single-unit power supply) or the C200H-APS02 Power Supply Unit (for double-unit power supply) to the
SYSMAC NET Link Unit. The C200H-APS03 Power Supply Unit cannot be connected to the SYSMAC NET Link Unit.
If the SYSMAC Link Unit is used in combination with the SYSMAC NET Link
Unit, be sure to mount them and the Power Supply Unit in the correct positions.
The Power Supply Unit and SYSMAC LINK Unit are connected by a power supply cable, as shown below. The tab on the connector should be on the right.
Power cable
24
The tab should be on the right.
Note 1. Turn off the power supply to the PC before mounting the Power Supply Unit.
2. Leave the protective sticker in place on the Unit when wiring to prevent clippings and other foreign matter from entering the Unit during the wiring procedure.
3. Remove the protective sticker after completion of wiring before turning on power to the Unit. If Unit is operated with the protective sticker in place, the
Unit may overheat, causing operational errors.
4. Do not pull on the cable. Pulling on the cable could break wires inside.
5. Do not bend the cable past the minimum radius. Bending the cable too far could break wires inside.
Bus Connector (C200HX/HG/HE/HS/H only) Section 3-3
3-3 Bus Connector (C200HX/HG/HE/HS/H only)
A Bus Connector is required to connect a C200HW-SLK13/14/23/24 SYS-
MAC LINK Unit to the CPU Unit of a C200HX, C200HG, C200HE, C200HS, or C200H PC.
There are three models of Bus Connector available. One is used when a single SYSMAC LINK Unit is being mounted on the CPU Rack, one is used when two Units are being mounted (either two SYSMAC LINK Units or a
SYSMAC LINK Unit and a SYSMAC NET Link Unit), and one is used when a single SYSMAC LINK Unit and a single PC Card Unit are mounted (C200HX/
HG/HE CPU Units only).
CPU Unit
C200HX, ,
Communications
Board
C200HW-COM01 or
C200HE
C200H, , ---
Bus Connector Function
C200HW-CE001 Used when mounting just one SYSMAC LINK Unit.
C200HW-CE002 Used when mounting two SYSMAC LINK Units or a SYSMAC
LINK Unit and a SYSMAC NET Link Unit.
C200HW-CE012 Used when mounting one SYSMAC LINK Unit and one PC
Card Unit.
C200H-CE001
C200H-CE002
Used when mounting just one SYSMAC LINK Unit.
Used when mounting two SYSMAC LINK Units or a SYSMAC
LINK Unit and a SYSMAC NET Link Unit.
Bus Bar Connection Connect the Bus Connector as described below after turning off the PC.
1, 2, 3...
1. When using the C200HS or C200H PC, align the Bus Connector so it fits into the connectors on both the SYSMAC LINK Unit and PC CPU Unit, and then press it into the connectors.
or When using the C200HX, C200HG, or C200HE PC, mount the Communications Board on the CPU Unit, align the Bus Connector so it fits into the connectors on both the SYSMAC LINK Unit and Communications Board, and then press it into the connectors.
2. Tighten the two screws on the Bus Connector to secure it.
C200HS, C200H C200HX, C200HG, C200HE
Communications Board
C200HW-COM01 or
C200HW-COM04-EV1
Note 1. Turn off the power supply to the PC before connecting the Bus Connector.
2. Firmly tighten the mounting screws of the Bus Connector.
25
Cable Connection Section 3-4
3-4 Cable Connection
SYSMAC LINK Units can be connected with either coaxial cable or optical fiber cable. This section describes the procedures required to connect both types of cable.
3-4-1 Coaxial Cable
The diagram below shows a SYSMAC LINK System connected by coaxial cables.
F Adapter
Connector
Terminator
Terminator
5C-2V coaxial cable
Required Components
1, 2, 3...
1. Coaxial cable and connectors:
Use 5C-2V coaxial cable designed for indoor use. Install connectors on each end of the cable. Cables must be continuous lengths only. No intervening cable connectors or breaks are permitted.
2. F Adapters (C1000H-CE001):
Coaxial cables are connected to the SYSMAC LINK Units via F Adapters.
One F Adapter is included as an accessory with SYSMAC LINK Units that use coaxial cables (C1000H-SLK21-V1 and C200HW-SLK23/24). An
Attachment Stirrup (C200H-TL001) is also included with the C200HW-
SLK23/24.
3. Terminator (C1000H-TER01):
Two Terminators (sold separately) are required for the F Adapters at the ends of the network.
Connection Procedure
The connection procedure is described briefly below.
Note 1. Turn off the power supply to the PC before connecting the cables.
2. Leave the protective sticker in place on the Unit when wiring to prevent wire clippings and other foreign matter from entering the Unit during the wiring procedure.
3. Remove the protective sticker after completion of wiring before turning on power to the Unit. If Unit is operated with the protective sticker in place, the
Unit may overheat, causing operational errors.
1, 2, 3...
1. Install connectors on each end of the cables.
2. Connect the Terminators to the F Adapters at the ends of the network (i.e., to the unused connectors at the last Unit on each end). Hold the connector in one hand and press the resistor into it firmly with the other.
26
Cable Connection Section 3-4
3. Connect the F Adaptors to the SYSMAC LINK Units by firmly pushing the adapter onto the coax connector on the Unit and turning the locking ring to the right until it locks. Start at one end of the network and connect the F
Adapters to the other end in order.
Turn locking ring to the right.
With the C200H, C200HS, C200HX, C200HG, or C200HE, secure the
F Adapter to the coaxial connector with an attachment stirrup.
C200H-TL001
Attachment Stirrup
4. Place an insulation cover over the F Adapter.
Insulation cover
27
Cable Connection Section 3-4
5. Any bends in the coaxial cable must be 45 mm in radius or greater (six times the outer diameter of the cable). When laying the cable, make wider bends of 110 mm in radius or greater (15 times the outer diameter of the cable).
Radius
> 45 mm
Note 1. Check to be sure that the coaxial cable if firmly locked into place after connecting it.
2. Do not pull on the cable. Pulling on the cable could break wires inside.
3. Do not bend the cable past the minimum radius. Bending the cable too far could break wires inside.
4. Do not place heavy objects on the cable or connectors. Heavy objects could break wires inside.
3-4-2 Optical Fiber Cable
Required Components
1, 2, 3...
1. Optical fiber cable:
Use Hard Plastic-clad Optical Fiber Cable (H-PCF). Refer to
Appendix A
Standard Models
for details on available lengths and colors.
2. Optical Connectors:
There are two types of Optical Connector available, as shown below. Use the cable splicing connector to splice cable.
Function Model number Number required
Node-cable connection S3200-COCF2071 2 for each node
Cable splicing S3200-COIAT2000
(inline adapter)
1 for each break in the cable
Note Using an inline adapter to splice the cable will reduce the maximum transmission distance because of loss at the junction. Refer to your hard plastic-clad optical fiber cable (H-PCF) installation manual for details.
3. Optical Connector Assembly Tools:
These tools are required to attach the Optical Fiber Cable to the Optical
Connector.
Optical Connector Assembly Tool Set
S3200-CAK1062
Applicable Connectors
S3200-COCF2071 (C1000H)
S3200-COCF2571 (C200HS)
Note Optical fiber cable cutters are included.
4. Optical Fiber Tester (Optical Power Tester):
Tester Set Head Unit Applicable Connectors
S3200-CAT2700 S3200-CAT2702 S3200-COCF2071 (C1000H)
S3200-COCF2571 (C200HS)
28
Cable Connection Section 3-4
5. Master Fiber:
Master Fiber
S3200-CAT2001H
Applicable Connectors
S3200-COCF2071 (C1000H)
S3200-COCF2571 (C200HS)
Discontinued Products:
Name Model number Recommended replacement models
Manufacturer
S3200-COCF2011 S3200-COCF2071 OMRON
S3200-COCF2511 S3200-COCF2571 OMRON
Optical Connector Assembly
Follow the instructions provided with the S3200-CAK1062 Optical Connector
Assembly Tool Set.
Connection Procedure
The connection procedure is described briefly below. Begin with the highest node in the network and connect the lower nodes in order.
Note 1. Turn off the power supply to the PC before connecting the cables.
2. Leave the protective sticker in place on the Unit when wiring to prevent clippings and other foreign matter from entering the Unit during the wiring procedure.
3. Remove the protective sticker after completion of wiring before turning on power to the Unit. If Unit is operated with the protective sticker in place, the
Unit may overheat, causing operational errors.
4. Do not pull on the cable. Pulling on the cable could break fibers inside.
5. Do not bend the cable past the minimum radius. Bending the cable too far could break fibers inside.
6. Do not place heavy objects on the cable or connectors. Heavy objects could break fibers inside.
C1000H-SLK11
1, 2, 3...
1. Insert the terminals into the mounting bracket so that the tension wire holes are vertical, and then secure the terminals by tightening the nuts on the other side.
2. Insert the bushings into the mounting bracket and secure the bracket to the
Unit with the Philips head screws provided.
3. If the cable has tension wires, thread them through the terminals and tighten the terminal screws to secure them.
4. Place the cables behind the clamp and secure them by tightening the Philips head screw provided. Secure both cables at once.
29
Cable Connection
Mounting bracket
Nut
(1)
Section 3-4
5. Align the cable’s Optical Connectors so that the tabs are on the left and insert them into the Unit’s Optical Connectors.
Terminal
(5)
Tension wires
(3)
(1)
(4)
(2)
Note Tighten the screws on the mounting bracket firmly.
C200HW-SLK13/14
1, 2, 3...
1. Insert the terminals into the mounting bracket so that the tension wire holes are vertical, and then secure the terminals by tightening the nuts on the other side.
2. Secure the bracket to the Unit with the Philips head screws provided.
3. If the cable has tension wires, thread them through the terminals.
4. Insert the cable’s Optical Connectors into the Unit’s Optical Connectors.
5. Place the cables behind the clamp and secure them by tightening the Philips head screw provided. Secure both cables at once.
30
Cable Connection Section 3-4
6. If the cable has tension wires, tighten the terminal screws to secure them.
Nut
Terminal
Mounting bracket
(1)
(2)
(4)
(1) (3)
(6)
Tension wires
(5)
Precautions
Note Tighten the screws on the mounting bracket firmly.
1, 2, 3...
1. Use only the Hard Plastic-clad Optical Fiber Cable (H-PCF) listed in
Appendix A Standard Models
.
2. Any bends in the cable must be 10 cm in radius or greater.
3. Always hold the connector firmly when inserting or removing the cables.
31
Cable Connection Section 3-4
4. As shown in the diagram below, begin connecting the highest node of the network and connect the lower nodes in order. Cover the upper connector
(SL1) of the highest node, and connect SL2 to SL1 of the next node. Continue connecting this way until the lowest node is reached and cover SL2 of the lowest node.
Higher nodes Lower nodes
Optical
Connector
Cover
C1000H-SLK11 C1000H-SLK11
Optical
Connector
Cover
C200HW-SLK13/14
5. Allow sufficient clearance between the bottom of the Unit and the cable to prevent the cable from being bent too much, as shown in the diagram below.
(The clearances are in millimeters.)
C1000H-SLK11 C200HW-SLK13/14
60
55
200
200
32
Dimensions
3-5 Dimensions
Section 3-5
Dimensions for the SYSMAC LINK Units are shown below. All dimensions are in millimeters.
C1000H-SLK11
34.5
SLK11
RUN
ERC
P/S
ERH
INS
SD
TS
M/S
RD
LNK
93
250
C200HW-SLK13/14
105
130
34.5
SLK14
RUN
ERC
INS
SD
P/S
ERH
M/S
RD
TS
LNK
125
33
Dimensions
C1000H-SLK21-V1
250
34.5
SLK21-V1
RUN
ERC ERH
INS
SD
TS
M/S
RD
LNK
93
C200HW-SLK23/24
130
34.5
SLK24
RUN
ERC
INS
SD
ERH
M/S
RD
TS
LNK
125
34
109
C200H-TL001 F Adapter
Attachment Stirrup
8.25
54
Section 3-5
SECTION 4
Basic Communications
A description of the token bus method of communications used in SYSMAC LINK Systems is described briefly in this section. The basic settings necessary for operation are also explained.
4-1 SYSMAC LINK System Communications
4-2 Setting Node Numbers
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 Operating Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4 PC Mode at Start-up (C1000H only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5 Polling Unit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-6 Setting Network Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-7 Network Parameter Initialization
4-8 Active Node Flags
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36
37
38
38
39
40
41
42
35
SYSMAC LINK System Communications Section 4-1
4-1 SYSMAC LINK System Communications
SYSMAC LINK Units communicate through the SYSMAC LINK Network, a token bus LAN. This section describes the token bus communications used in the SYSMAC LINK Network.
Token Bus Communications
In token bus communications, individual nodes are connected to a main trunk line as a common bus line, as shown in the figure below.
To avoid having two nodes attempt to transmit simultaneously, only one node has the right to transmit at a time. The Unit with that right is called the polling unit . The polling unit is identified by a token that is passed in sequence from the node to node, beginning with the node with the lowest node number.
If the token is passed to a node that doesn’t have data to transmit, the token is immediately passed to the node with the next higher node number. The node with the highest node number passes the token back to the node with the lowest node number. In this way, each node in the network has its turn to transmit data without interfering with other nodes.
Lowest node number
Node Node Node Node
Connecting cable
(trunk line)
Node Node Node
Highest node number
Polling Unit
In a SYSMAC LINK Network there is one node, called the polling unit , that controls communications in the network. Normally, the Unit with the lowest node number is the polling unit. If the polling unit happens to fail, the node with the next higher node number becomes the polling unit, preventing the whole network from failing.
Start-up Node
The node that starts the data link in a SYSMAC LINK Network is called the start-up node . The data link operates using the settings in the memory area of the PC at the start-up node. With automatic allocation of link words the settings in AR 07 are used, and with manual allocation the common link parameters in the start-up node are used.
The start-up node controls not only data link table generation, but is used to start and stop data link operation. Be sure to designate a Unit or Units participating in the data link as the start-up node(s) to enable this control.
Communications Cycle
The token in a SYSMAC LINK Network is first sent out from the polling unit. The token is then is passed in sequence from the node to node by node number until it is finally returned to the polling unit. One complete circuit around the network is known as a token cycle .
At the end of each token cycle, the polling unit polls all of the nodes in the network to check whether any nodes have been added to or removed from the network. The updated information on the network is transmitted to all nodes. This polling and updating process is known as the polling cycle .
36
Setting Node Numbers Section 4-2
When the control cycle is completed, the polling unit once again sends out the token, beginning the next token cycle. Together the token cycle and control cycle make up the communications cycle, and the time required for the communications cycle is known as the communications cycle time .
Communications cycle Communications cycle
Token cycle Polling cycle Token cycle Polling cycle
Network Parameters
The communications cycle time is one of the network parameters. The other network parameters are the number of polled units, maximum number of frames, and the maximum node number. These parameters are transmitted from the polling unit to the other nodes in the network. Refer to
4-6 Setting Network
Parameters
for details on the network parameters.
Refresh Cycle Time
Data is refreshed between the SYSMAC LINK Unit and the PC’s CPU Unit while a data link is active. The PC passes the data for the local words to the SYSMAC
LINK Unit and receives the words written by other nodes from the SYSMAC
LINK Unit. The time required to refresh the data is called the refresh cycle time .
The refresh cycle time can be monitored from Peripheral Devices.
4-2 Setting Node Numbers
In token bus communications used in the SYSMAC LINK Network, the node numbers make a logical ring that the token is passed around. The logical ring of node numbers takes the place of the actual physical ring used in some other networks. Consequently, proper setting of the node numbers is essential to network operations.
Node number switches determine the node number. The left switch sets the tens digit; the right switch sets the ones digit. The node number must be in the range from 01 through 62. Each SYSMAC LINK Unit in a Network must have a unique node number.
Note Always turn the PC’s power off before setting a Unit’s node number.
Use a small flat-blade screwdriver to set node number switches, being careful not to damage them. The following example shows the node number set to 50.
NODE No.
x10 1 x10 0
Note 1. If the node number set on the Unit is outside of the allowed range (01 to 62), a communications error will occur and the red ERC indicator will light on the
Unit’s display.
2. Each Unit in the network must have a unique node number, so be sure not to use the same number in more than one Unit.
37
PC Mode at Start-up (C1000H only) Section 4-4
3. The token is passed from node to node according to node numbers, so the more dispersed the node numbers are, the greater distance the token has to travel. In optical fiber systems, the communications cycle time depends on the distance the token has to travel, so set node numbers according to the nodes positions in the network if possible.
4. When a node number has been changed, activate that node last.
4-3 Operating Levels
Up to 2 Link Units can be mounted on a C-series PC at one time. Link Units include SYSMAC LINK Units, SYSMAC NET Link Units, Host Link Units, and
PC Card Unit (C200HX/HG/HE CPU Units only). For details refer to
1-4-2
Compatibility with other Link Units
.
When two Link Units are mounted on one PC, it is necessary to differentiate between the two Networks to which the PC belongs. Units in one Network are assigned to operating level 0; Units in the other Network are assigned to operating level 1. These operating levels only distinguish between the two
Networks and do not imply that one Network is operating above or below the other in any functional sense.
Setting Operating Levels The operating level of all SYSMAC LINK Units (C1000H-SLK11/SLK21-V1 and
C200HW-SLK13/14/23/24) is set with pin 3 of DIP switch 1, as shown below.
Operating level DIP switch 1, pin 3
ON (1)
OFF (0)
Operating level 0
Operating level 1
Note 1. Always turn the PC’s power off before setting a Unit’s operating level.
2. When mounting a SYSMAC LINK Unit on the same PC with a SYSMAC NET
Link Unit, Host Link Unit (Rack-mounting type), or PC Card Unit, be sure they are set to different operating levels.
4-4 PC Mode at Start-up (C1000H only)
This setting is available on the C1000H-SLK11 and C1000H-SLK21-V1 only.
The PC mode at start-up can be set to MONITOR if it is not being controlled from the Programming Console of other Peripheral Device that might be connected to the PC.
Setting PC Mode at Start-up The PC mode at start-up is set with pin 5 of DIP switch 1, as shown in the table below.
Pin 5
ON (1)
Other unit connected
None 1
Programming Console
Setting on other unit
---
RUN
MONITOR
PC mode at start-up
MONITOR
RUN
MONITOR
Host Link Unit
PROGRAM
DIP switch 1, pin 8: ON (1)
PROGRAM
See note 2.
(CPU Unit-mounting type) DIP switch 1, pin 8: OFF (0) MONITOR
Host Link Unit DIP switch 1, pin 8: ON (1) MONITOR 3
(Backplane-mounting type) DIP switch 1, pin 8: OFF (0) MONITOR
3
SYSMAC NET Link Unit DIP switch 3, pin 1: ON (1) MONITOR 3
SYSMAC LINK Unit
DIP switch 3, pin 1: OFF (0) MONITOR
3
DIP switch 1, pin 5: ON (1) MONITOR 3
DIP switch 1, pin 5: OFF (0) MONITOR 3
Other Peripheral Devices 4 --MONITOR
38
Polling Unit Setting Section 4-5
Pin 5
OFF (0)
Other unit connected
None 1
Programming Console
Setting on other unit
---
RUN
MONITOR
PC mode at start-up
RUN
RUN
MONITOR
Host Link Unit
PROGRAM
DIP switch 1, pin 8: ON (1)
PROGRAM
RUN
(CPU Unit-mounting type) DIP switch 1, pin 8: OFF (0) PROGRAM
Host Link Unit DIP switch 1, pin 8: ON (1) MONITOR
3
(Backplane-mounting type) DIP switch 1, pin 8: OFF (0) RUN 3
SYSMAC NET Link Unit DIP switch 3, pin 1: ON (1) MONITOR
3
SYSMAC LINK Unit
DIP switch 3, pin 1: OFF (0) RUN 3
DIP switch 1, pin 5: ON (1) MONITOR
3
DIP switch 1, pin 5: OFF (0) RUN 3
Other Peripheral Devices
4
--PROGRAM
Note 1. None of the Link Units or Peripheral Devices listed in the table.
2. Never make this combination of pin settings.
3. When a Programming Console is also connected, the PC’s start-up mode is always controlled by the mode setting on the Programming Console.
4. Other Peripheral Devices include Floppy Disk Interface Units, Printer Interface Units, PROM Writers, and Peripheral Interface Units.
5. Always turn the PC’s power off before setting the PC mode at start-up.
4-5 Polling Unit Setting
The polling unit setting is used only when replacing a SYSMAC LINK Unit and is otherwise left set to OFF. Be sure to set the data link tables if data links are being set manually and to change any network parameters in Unit before performing the following procedure.
C1000H Units
1, 2, 3...
1. When replacing a SYSMAC LINK Unit, set the Unit as the polling unit and then initialize the Unit by pressing the reset switch or turning on the power.
2. Check the status of the Unit’s indicators to see whether the Unit has entered the network normally. The INS indicator should be ON, and the ERC and
ERH indicators should be OFF.
3. If the indicators show that the Unit has entered the network normally, set the
Unit as a polled Unit and initialize it again.
4. Check the status of the Unit’s indicators to see whether the Unit has entered the network normally. The INS indicator should be ON, and the ERC and
ERH indicators should be OFF.
If the indicators show that the Unit has entered the network normally again, it is ready to be used in the Network. If the indicators do not show the expected status, check the all switch and software settings and repeat the procedure.
The polling unit is set with DIP switch 1, pin 8 on the C1000H-SLK11 and
C1000H-SLK21-V1 Units, as shown below.
Polling unit operation DIP switch 1, pin 8
ON (1)
OFF (0)
Polled unit
Polling unit
39
Setting Network Parameters Section 4-6
C200HW Units The polling unit is set with DIP switch 2, pin 4 on the C200HW-SLK13/14/23/24
Units, as shown below.
Polling unit operation DIP switch 2, pin 4
ON (1)
OFF (0)
Polled unit
Polling unit
Note Always turn the PC’s power off before changing the polling unit setting
4-6 Setting Network Parameters
The operation of the SYSMAC LINK Network is determined by the network parameters. Network parameters are set with Peripheral Devices such as the
SSS/CVSS, and are automatically backed up in EEPROM within the SYSMAC
LINK Unit.
The following table shows the network parameters, their default values, and the range within which the parameters can be set by the user. Default values and setting ranges are in decimal.
Network parameter
Communications cycle time
Maximum node number
Number of polled units per communications cycle
Maximum number of frames per communications cycle
Default value
Automatic
62
4
10
Setting range
5 to 255
2 to 62
1 to 62
5 to 255
Communications Cycle Time This parameter sets a timer that fixes the length of the communications cycle to the specified time. The timer operates only when the data link is in operation. Set the communications cycle time when setting the data link table’s common link parameters.
When the timer is in operation, the communications cycle time is fixed at the specified value, independent of the number of events that occur. Refer to
5-10 Data
Link Characteristics
for the formula needed to calculate the communications cycle time when the data link is set for automatic generation.
Maximum Node Number This parameter sets the maximum node number that a node can have and still be a part of the network. Nodes with node numbers greater than the maximum node number will not be polled, and therefore cannot participate in network communications. This eliminates unnecessary polling of units with node numbers above the maximum, and thus reduces the time required for communications.
Note Set the maximum node number above the highest node number set on the SYS-
MAC LINK Units currently connected.
Number of Polling Units This parameter determines how many nodes will be polled by the polling unit during a polling cycle. Setting this to a high value increases the communications cycle time, but reduces the time required to recognize that nodes have been removed from or added to the network.
Maximum Number of Frames This parameter determines how many event transmissions can take place during a token cycle when the data link is operating. With the default value of 10 frames, up to 4 event transmissions can be issued.
Event transmissions include instructions such as SEND(90) or RECV(98) instructions, as well as processes such as remote monitoring and remote programming from a SSS or CVSS.
Setting this parameter to a high value increases the communications cycle time, while setting it to a low value will cause errors because of restrictions on event transmissions when the data link is operating. Increase the number of frames by
3 for each additional event transmission when 5 or more event transmissions will occur while the data link is operating.
40
Network Parameter Initialization Section 4-7
Setting Network Parameters Network parameters are set with Peripheral Devices such as the SSS/CVSS.
For details, refer to the Peripheral Device’s
Operation Manual
. Set the network parameters after installing the network.
The network parameters must be set after the network has been assembled, and while data links are halted. Network parameters cannot be set while the data link is operating. Once the network parameters has been set, any new
Units must be connected only while the System is in operation. A special procedure is required if new Units are connected while System operation is halted. Refer to
Section 9 Inspection and Maintenance
for this procedure.
Note If a Unit is initialized while the network parameters are being set, the network parameters will not be backed up properly and an EEPROM error might occur.
Conflicting Network
Parameter
When the network parameters set from the Peripheral Device differ from existing network parameters, a flag is set in the AR area of the PC in the way shown below. The same AR bits are used in all PCs.
Word: AR 24
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Undefined – – Undefined
Operating Level 1 Conflicting Network Parameter Flag
Operating Level 0 Conflicting Network Parameter Flag
ON (1): Conflicting network parameters
OFF (0): Normal network parameters
4-7 Network Parameter Initialization
The SYSMAC LINK Unit can be set so that the network parameters are initialized when the PC is turned on or the Unit is reset. Network parameters are otherwise not usually initialized unless an error has developed in the network parameters.
C1000H-SLK11/SLK21-V1 If pin 7 of DIP switch 1 is ON, the network parameters will be initialized when the
PC is turned on or the C1000H-SLK11/SLK21-V1 is reset.
DIP switch 1, pin 7
ON (1)
OFF (0)
Network parameter initialization
Network parameters will be initialized.
Network parameters will be not be initialized.
C200HW-SLK13/14/23/24 If pin 3 of DIP switch 2 is ON, the network parameters will be initialized when the
PC is turned on or the C200HW-SLK13/14/23/24 is reset.
DIP switch 2, pin 3
ON (1)
OFF (0)
Network parameter initialization
Network parameters will be initialized.
Network parameters will be not be initialized.
41
Active Node Flags Section 4-8
4-8 Active Node Flags
The AR Area of the PC contains a record of the nodes that are active in the
SYSMAC LINK System at the current time. Words AR 08 to AR 11 contain information on operating level 0, and words AR 12 to AR 15 contain information on operating level 1. These flags are refreshed every cycle while the
SYSMAC LINK System is operating.
The body of the following table shows the node number assigned to each bit.
If the bit is ON, the node is currently active.
Level 0 Level 1
AR 08
AR 09
AR 10
AR 11
AR 12
AR 13
AR 14
AR 15
Bit (body of table shows node numbers)
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 * **
*Communication Controller Error Flag
**EEPROM Error Flag
Note If one of the operating levels is not being used, the words allocated to it for active node flags are available for use in the program as work words.
42
SECTION 5
Data Links
The operation of data links, procedures required to establish data links, and methods of monitoring data link operations are explained in this section.
5-1 Data Link Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Creating Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3 Automatic Generation of Data Link Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-4 Manual Generation of Data Link Tables
5-10-2 Data Exchange Timing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5 Data Link Table Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5-1 Identical Data Link Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5-2 Different Data Link Tables
5-5-3 Multiple Data Link Groups
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-6 Restrictions on C200HW-SLK13/14/23/24 Data Link Areas . . . . . . . . . . . . . . . . . . . . . . .
5-6-1 Combining the C200HW-SLK13/23 with other SYSMAC LINK Units . . . . . . .
5-6-2 Installing C200HW-SLK14/24 SYSMAC LINK Units on C200H PCs
5-7 Controlling Data Links
. . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7-1 DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7-2 DATA LINK START/HALT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-8 Data Link Precautions
5-9 Data Link Status
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9-1 Automatic Data Link Table Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9-2 Manual Data Link Table Generation
5-10 Data Link Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-10-1 Data Link Communications Cycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-10-3 Data Link I/O Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
55
58
58
51
51
52
55
44
45
46
48
62
62
63
63
58
59
59
60
65
66
43
Data Link Overview Section 5-1
5-1 Data Link Overview
Data links can be created between the PCs in the same SYSMAC LINK Network to exchange data between the PCs. This data is transferred between interconnected PCs automatically without requiring the use of normal I/O Units.
A region of the LR and/or DM Areas is set aside as the data link area in each PC that is in the data link. A part of the data link area is allocated to the local node and the rest is allocated to other nodes. Data can be written to the part of the data link area allocated to the local node only. During data link refreshing, data written in the local node is transferred to those parts of other nodes’ data link areas allocated to the local node. The result is that each PC in the data link has a common data link area, the only difference being in the read/write permissions for the various parts of it, i.e., it can write to only those words allocated to it.
Data Link Tables The data link area in each PC is defined by a data link table . Data link tables can be generated automatically or manually. Automatic generation is accomplished simply by setting the value of a single word (AR 07) in the start-up node. Data link tables generated automatically are identical in all PCs in the data link, with the regions of the data areas listed below divided equally among 2, 4, 8, or 16 nodes.
The areas used by each PC are listed in the following table.
C200H, C200H j , C1000H/C2000H
LR 00 to LR 63
DM 0000 to DM 0127
CV Series
CIO 1000 to CIO 1063
D00000 to D00127
Manual generation requires generation of a separate data link table for each node, but provides much greater flexibility in making data links among PCs. The following table shows the data areas in which data link tables can be manually generated.
C200H
LR 00 to LR 63
DM 0000 to DM 0999
C200H j
LR 00 to LR 63
DM 0000 to DM 5999
C1000H/C2000H
LR 00 to LR 63
DM 0000 to DM 4095
The maximum number of linked words in a node depends on the SYSMAC LINK
Units used in the System, as shown in the following table.
SYSMAC LINK Unit
C200HW-SLK13/23 only
C200HW-SLK14/24
C1000H-SLK14/24-V1
C200H-SLK11/SLK21-V1
Max. link words
918 words
2,966 words
2,966 words
918 words
Note 1. In a system that uses only C200HW-SLK13/23 Units, the maximum number of linked words is 918. If the C200HW-SLK13/23 is used in a system that contains C200HW or C1000H SYSMAC LINK Units, 2,966 words can be linked, but there is a limit on the words that can be accessed by the
C200HW-SLK13/23. Refer to
5-6-1
Combining the C200HW-SLK13/23 with other SYSMAC LINK Units.
2. The data link is restricted to a maximum of 918 words whenever one or more
C200H-SLK11/SLK21-V1 SYSMAC LINK Units are participating in the link.
3. When the C200HW-SLK14/24 is mounted to the C200H, data links for up to
2,966 words can be set, but only 918 words can be refreshed at the C200H node. There are no restrictions in node address or common link parameters when using the C200HW-SLK14/24.
44
Creating Data Links Section 5-2
The following diagram shows the operation of a data link among four nodes in a network. This data link was generated manually.
Data link area
Node 2
LR Area
LR00
LR10
#2
#5
LR30
#6
LR49
Data link table
Node 5
LR Area
LR10
LR20
#2
#5
LR39
Node 6
LR00
LR Area
#5
LR20
#6
LR39
LR05
LR15
LR Area
#2
#5
LR35
#6
LR54
Node 8
Refresh parameters
(can differ from node to node)
Refresh parameters
(can differ from node to node)
Refresh parameters
(can differ from node to node)
Refresh parameters
(can differ from node to node)
Common link parameters
(the same in all nodes)
Data Link Activation
Data Link Operation
Data links are activated either by a command sent from a CV-series PC, SSS, or
CVSS or by SYSMAC LINK Unit switch settings. (Refer to
Section 2 Unit Components and Switch Settings
for details on hardware switch settings.) When activated, the settings in AR 07 of the PC at the start-up node will determine the nature of the links, i.e., whether the data link tables will be generated automatically or manually.
The orange LNK indicator on the front of the SYSMAC LINK Unit indicates the operational status of the data link, as shown below.
LNK indicator
ON
Flashing
OFF
Data link status
The Unit is part of an active data link.
A data link error has occurred.
The Unit is not part of an active data link.
5-2 Creating Data Links
There are two ways to create a data link between PCs, automatically and manually. The value of AR 07 not only determines whether data links will be created automatically or manually. If automatic generation is specified, the value of
AR 07 also determines how many nodes will be linked and whether the LR Area,
DM Area, or both will be used.
The other way to establish links is to create the link tables from the SSS/CVSS.
When the SSS/CVSS is used to create link tables manually, there is far more flexibility in the structure of the data links than with automatic generation.
45
Automatic Generation of Data Link Tables Section 5-3
Item
No. of data link nodes
No. of linked words per node
Max. number of linked words
Automatically generated data links
Manually generated data links
Data link table backup
Basic specifications for data links are provided in the following table.
Description
62 max., 2 min.
LR area: 64 words max. (128 bytes)
DM area: 254 words max. (508 bytes)
2,966 words total in the LR and DM areas
(918 words total when only C200HW-SLK13/23 Units are being used.)
Settings in AR 07 determine whether LR 00 to LR 63 and/or DM 0000 to
DM 0127 will be used as data link areas, and whether these areas will be divided equally among 2, 4, 8 or 16 nodes.
Set from the SSS/CVSS.
EEPROM inside each SYSMAC LINK Unit
Other Link Systems When both a SYSMAC LINK System data link and a SYSMAC NET Link System data link exist between two PCs, the words that are linked and the data link status area must not overlap; each System must have unique link words and status areas.
When a SYSMAC LINK Unit and a PC Link Unit are mounted on the same PC, do not use the LR area for a SYSMAC LINK System data link or data link status area.
5-3 Automatic Generation of Data Link Tables
AR 0700 through AR 0703 and AR 0704 through AR 0707 are used to specify both automatic generation and data link table structure, as shown below. The status of these bits is effective only in the PC at the start-up node.
The data in the first table is used to designate whether word allocation will be automatic (according to these AR bits) or whether it will be set manually (from a
SSS/CVSS), and to designate which areas will be linked. The data in the second table is used to designate the number of words per node. If manual generation
(the first setting in the first table) is used, the settings in the second table are ignored.
Operating level 0 Operating level 1
AR 0700 AR 0701 AR 0704 AR 0705
OFF
ON
OFF
ON
OFF
OFF
ON
ON
OFF
ON
OFF
ON
OFF
OFF
ON
ON
Setting
Manual generation
Automatic LR area only generation DM area only
LR and DM areas
Words per Node
Operating level 0 Operating level 1 Words per node Nodes in
AR 0702 AR 0703 AR 0706 AR 0707 LR area DM area data link
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
4
8
8
16
Up to 16
Up to 8
OFF
ON
ON
ON
OFF
ON
ON
ON
16
32
32
64
Up to 4
2
These settings are read every cycle while the SYSMAC LINK System is in operation.
46
Automatic Generation of Data Link Tables
Allocated Words
Section 5-3
00 to 03
04 to 07
08 to 11
12 to 15
16 to 19
20 to 23
24 to 27
28 to 31
32 to 35
36 to 39
40 to 43
44 to 47
48 to 51
52 to 55
56 to 59
60 to 63
If automatic generation is specified by bits AR 0700/0701 or AR 0704/0705, the words allocated to each Unit are determined by the node number of the Unit and the Words per Node settings in the AR word shown above. Words are allocated as shown in the following table.
LR words* DM words*
4
0000 to 0007 Node #1
0008 to 0015 Node #2
0016 to 0023 Node #3
0024 to 0031 Node #4
0032 to 0039 Node #5
0040 to 0047 Node #6
Words per node
8
Node #1
Node #2
Node #3
0048 to 0055 Node #7
0056 to 0063 Node #8
0064 to 0071 Node #9
0072 to 0079 Node #10
Node #4
Node #5
0080 to 0087 Node #11 Node #6
0088 to 0095 Node #12
0096 to 0103 Node #13 Node #7
0104 to 0111 Node #14
0112 to 0119 Node #15 Node #8
0120 to 0127 Node #16
16
Node #1
Node #2
Node #3
Node #4
32
Node #1
Node #2
Data Flow
Note *When combining CV-series PCs in data links with C-series PCs, LR 00 to LR 63 in C-series PCs correspond to CIO 1000 to CIO 1063 in CV-series PCs and
DM 0000 to DM 0127 correspond to D00000 to D00127.
This example shows data flow resulting from automatic generation with four PCs exchanging 16 LR words each. The data link table information in AR 07 of the start-up node, indicates that only the LR Area will be used and it will be divided into 4 parts; this information is transmitted to all nodes. The AR 07 settings in other nodes are ignored. Shading indicates the words written and transmitted by each PC; non-shaded words are those received from other PCs.
Node #1
LR 00 to
LR 15
LR 16 to
LR 31
LR 32 to
LR 47
LR 48 to
LR 63
Node #2
LR 00 to
LR 15
LR 16 to
LR 31
LR 32 to
LR 47
LR 48 to
LR 63
Node #3
LR 00 to
LR 15
LR 16 to
LR 31
LR 32 to
LR 47
LR 48 to
LR 63
Node #4
LR 00 to
LR 15
LR 16 to
LR 31
LR 32 to
LR 47
LR 48 to
LR 63
(Node #1 data)
(Node #2 data)
(Node #3 data)
(Node #4 data)
Data Link Area Refresh Data links are refreshed for all nodes between the lowest-numbered and the highest-numbered node designated to participate in the data link. Link words automatically allocated to nodes assigned numbers lower than the lowest-number participating node or higher than the highest-number participating node can be used as work words. Words allocated to a node number between the lowest and highest-numbered nodes cannot be used as work words even if there isn’t a node with that node number.
47
Manual Generation of Data Link Tables Section 5-4
The example below shows a configuration consisting of four nodes that have been set to link 8 words per node in the LR area only. Of the eight possible nodes, only nodes #2, #4, #5, and #6 are actually in the System. Words normally allocated to nodes #1, #7, and #8 can therefore be used as work words, but words normally allocated to node #3 cannot, because they are refreshed by the System.
Node 2
System Configuration
Node 4 Node 5 Node 6
Refreshing for the above System will be as shown below:
Node #1
Node #2
Node #3
Node #4
Node #5
Node #6
Node #7
Node #8
LR 00 to LR 07
LR 08 to LR 15
LR 16 to LR 23
LR 24 to LR 31
LR 32 to LR 39
LR 40 to LR 47
LR 48 to LR 55
LR 56 to LR 63
Not refreshed.
Refreshed.
Not refreshed.
5-4 Manual Generation of Data Link Tables
The CVSS is required to specify data link tables manually. Generating data link tables manually allows considerable flexibility in data links. Each PC can be set up independently to link to the desired PCs only.
To designate manual generation of data link tables, AR 0700 and AR 0701, or
AR 0704 and AR 0705 (depending on the operating level) must be all turned
OFF in the start-up node. The structure and operation of data link tables are described in this manual. Refer to the
CVSS Operation Manuals
for specific procedures and displays used in setting the tables.
Data link tables contain two types of information: common link parameters, which are the same in all nodes and control the overall structure of the data links, and refresh parameters, which are set independently for each node to determine which links are to be established for that node.
Common Link Parameters Common link parameters determine the communications cycle time of the data link, which areas will be enabled for data links, and how many LR and DM words will be transmitted from each PC. The same common link parameters must be set in all nodes that are to be part of a data link in a Network. The displays used to input the common link parameters are shown following the table.
48
Manual Generation of Data Link Tables Section 5-4
It is possible to transfer the common link parameters from the node to which the
CVSS is connected to all the nodes designated by the CVSS.
Parameter
Communications cycle time
No. of nodes in data link and their node numbers
No. of LR words* transmitted by each node
No. of DM words* transmitted by each node
Description
The data link communications time between 5 and
255 ms. The communications cycle time will be selfgenerating if not specified.
This information is set automatically when the No. of LR words and No. of DM words parameters (see below) are entered.
The number of LR words transmitted by each node
1 to 64: 1 to 64 words
-:
0:
Not part of data link
Can read LR words from other nodes only.
The number of DM words transmitted by each node
1 to 254: 1 to 254 words
-:
0:
Not part of data link
Can read DM words from other nodes only.
Note 1. *When combining CV-series PCs in data links with C-series PCs, LR 00 to
LR 63 in the C-series PCs correspond to CIO 1000 to CIO 1063 in the CVseries PCs and DM 0000 to DM 0127 correspond to D00000 to D00127.
2. When combining C1000H-SLK11/SLK21-V1 or C200HW-SLK14/24 Units with C200HW-SLK13/23 Units, all of the C200HW-SLK13/23 Units in the data link must be within the last 918 words in the data link area.
CVSS
49
Manual Generation of Data Link Tables
Refresh Parameters
Section 5-4
Refresh parameters are set for each node to determine what links will actually be created for that node, i.e., the words whose contents will be automatically transferred from other nodes. Enter the link words in the LR and DM Areas for the local node as well as all of the nodes that the local node will link to.
Parameter
PC model
Node number
No. of words per node
Beginning status word
Beginning LR word
Beginning DM word
Description
Enter the model number of the PC at the local node (the node for which the refresh parameters are being set).
Enter the node numbers of the local node and nodes that the local node will link to. Nodes not set (set to “-”) in the Common
Link Parameters cannot be specified here.
Indicates the number of LR and DM words in the data link for each node designated above. (Same as the “No. of LR words” and “No. of DM words” in the Common Link Parameters.)
Sets the beginning word of the region in memory that will contain the Data Link Status Flags for the nodes in the data link. Refer to
5-9 Data Link Status for details.
Sets the first word of the data link area in the LR Area (between 0 and 63).
Sets the first word of the data link area in the DM area.
0 to 999 for the C200H
0 to 5999 for the C200HX, C200HG, C200HE, or C200HS
0 to 4095 for the C1000H/C2000H
Note Refer to the tables.
CVSS Operation Manual
for details on editing and setting data link
CVSS
Table Backup
Note Refer to the following when creating a data link table with the CVSS in a SYS-
MAC LINK network that includes CV- and C-series PCs.
• The PC setting in the refresh parameter table of each C-series PC must be set to “Others.”
• LR 00 to LR 63 of the C-series PC’s LR area correspond to the CV-series
PC’s CIO 1000 to CIO 1063.
Data link tables are automatically backed up in the EEPROM of the Unit involved. Previously set data link tables are completely overwritten whenever new tables are created. If a Unit is turned off or re-initialized while the data link table is being set, the table might not be backed up properly.
50
Data Link Table Examples Section 5-5
5-5 Data Link Table Examples
Three examples of manually generated data links are presented in this section.
In the first, identical data link tables are set up in all nodes. In the second, a different data link table is set up in each node. In the third, data links are set up in two separate groups of PCs.
5-5-1 Identical Data Link Tables
To generate the same data link tables in all PCs in the Network, set the same refresh parameters for each node. Although refresh parameters must be set for each node, the copy function in the computer can copy a node’s refresh parameters and greatly simplify the generation of the data link.
The data flow for an example configuration is shown below.
Data Flow
Node #1
LR 05 to
LR 09
LR 10 to
LR 14
LR 15 to
LR 19
LR 20 to
LR 29
Node #3
LR 05 to
LR 09
LR 10 to
LR 14
LR 15 to
LR 19
LR 20 to
LR 29
Node #5
LR 05 to
LR 09
LR 10 to
LR 14
LR 15 to
LR 19
LR 20 to
LR 29
Node #7
LR 05 to
LR 09
LR 10 to
LR 14
LR 15 to
LR 19
LR 20 to
LR 29
(Node #1 data)
(Node #3 data)
(Node #5 data)
(Node #7 data)
51
Data Link Table Examples Section 5-5
5-5-2 Different Data Link Tables
In this example, the refresh parameters differ from node to node, so the data link tables will also differ from node to node. There are four nodes in the network (2,
5, 6, and 8), but some nodes will not receive data from others. The settings for the common link and refresh parameters are shown after the data flow.
Node 2
LR Area
LR00
#2
LR10
#5
LR25
LR29
#6
DM Area
DM0000
#2
DM0010
DM0020
DM0025
DM0029
#5
#6
#8
LR Area
Node 5
LR Area
LR00
#2
LR10
#5
LR25
LR29
#6
DM Area
DM0020
#2
DM0030
DM0040
DM0044
#5
#6
Node 6 Node 8
LR Area
LR05
#5
LR20
LR24
#6
DM Area
DM0000
DM0010
DM0014
#5
#6
LR Area
LR10
LR15
#6
#2
LR25
#5
LR39
DM Area
DM0000
DM0005
DM0015
DM0025
DM0029
#5
#8
#6
#2
Words written by local node
Words read by local node
52
Data Link Table Examples Section 5-5
Common Link Parameters
These parameters are set from a SSS/CVSS, and need to be set only once for a
SYSMAC LINK Network. Enter the communications cycle time and the number of DM and LR Area link words for each node in the data link, as shown below.
(Setting the number of LR Area link words to zero for node 8 means that node 8 will be able to receive but not send data.)
With manual data link table generation, the number of link words sent from each node can be set in 1 word increments.
Refresh Parameters
Node #2
These parameters are also set from a SSS/CVSS, and need to be set separately for each node in the data link. Enter the PC model, beginning LR and DM words, and beginning status word, then set the number of LR and DM link words for the local node each node that the local node will link to.
The number of LR and DM words set for each node in the common link parameters will be allocated to nodes automatically in the order that they have been entered into the refresh parameters table. Link word allocation starts at the beginning LR and DM words. The order of nodes in the refresh parameters table can be changed freely.
In node 2, the data link area will be allocated to nodes 2, 5, 6, and 8 in that order, so the node 2 refresh parameters are set as shown below.
53
Data Link Table Examples
Node #5
Section 5-5
In node 5, the data link area will be allocated to nodes 2, 5, and 6 in that order, so the node 5 refresh parameters are set as shown below. DM Area allocation is set to begin at DM 0020. (Node 8 data will not be received at node 5, so node 8 is not entered in the table.)
Node #6 In node 6, the data link area will be allocated to nodes 5 and 6 in that order, so the node 6 refresh parameters are set as shown below. LR Area allocation is set to begin at LR 05. (Data from nodes 2 and 8 will not be received at node 6, so they are not entered in the table.)
Node #8 In node 8, the data link area will be allocated to nodes 6, 2, 5, and 8 in that order, so the node 5 refresh parameters are set as shown below. LR Area allocation is set to begin at LR 10.
54
Restrictions on C200HW-SLK13/14/23/24 Data Link Areas Section 5-6
5-5-3 Multiple Data Link Groups
The refresh parameters can be set up to simulate two or more groups of data links within one Network. Although the common link parameters must designate all the words to be transmitted by all nodes that are part of a data link, the refresh parameters can be set up so the PCs in the Network are separated into groups of
PCs that only receive data from other PCs in the same group.
Although data is refreshed only within data link groups, all groups in one Network are always started and stopped together. The data flow for this System is shown below.
Data Flow
Node #1
LR 00 to
LR 09
(#1 data)
LR 10 to
LR 2
(#2 data)
Node #2
LR 00 to
LR 09
(#1 data)
LR 10 to
LR 29
(#2 data)
Node #3
LR 00 to
LR 19
(#3 data)
Node #4
LR 20 to
LR 39
(#3 data)
LR 20 to
LR 39
(#4 data)
LR 40 to
LR 59
(#4 data)
Group 1 Group 2
5-6 Restrictions on C200HW-SLK13/14/23/24 Data Link Areas
5-6-1 Combining the C200HW-SLK13/23 with other SYSMAC LINK Units
Manually generated data link areas can contain up to 2,966 words with C1000H-
SLK11/SLK21-V1 or C200HW-SLK14/24 SYSMAC LINK Units but only 918 words max. with C200HW-SLK13/23 SYSMAC LINK Units, so the following conditions must be met in the common parameter table when the data link contains both C200HW-SLK13/23 and other SYSMAC LINK Units.
•
Add the total number of words used by the nodes in the data link area (LR area
+ DM area) beginning with the node with the highest node number; all of the
C200HW-SLK13/23 Units in the data link must be within the last 918 words in the data link area.
• The order in which the nodes are connected isn’t important.
• Even when the C200HW-SLK13/23 Units only receive data from other nodes, they must be within the last 918 words in the data link area, because the maximum amount of data that can be received by C200HW-SLK13/23 Units is the last 918 words in the data link area.
• C1000H-SLK11/SLK21-V1 and C200HW-SLK14/24 SYSMAC LINK Units can use up to 2,966 words.
Note The simplest method to put the C200HW-SLK13/23 SYSMAC LINK Units within the last 918 words in the data link area is to increase their node numbers and place them at the end of the data link, but the following problems occur if the node numbers are raised:
• The data link communications cycle is longer because it is necessary to increase the maximum node number. (Refer to
page 64
for details.)
• It takes longer to recognize the withdrawal or addition of nodes in the network.
55
Restrictions on C200HW-SLK13/14/23/24 Data Link Areas Section 5-6
Case 1
C200HX: C200HW-SLK13/23
C1000H: C1000H-SLK11/21-V1
C200HX
Node #13
C200HX
Node #7
C200HX
Node #6
Nodes marked with an X cannot be in the data link.
Common parameter table
Receivable data
918 words
#1 LR
#1 DM
#4 LR
#4 DM
#6 LR
#6 DM
#7 LR
#7 DM
#11 LR
#11 DM
#13 LR
#13 DM
(3)
(4)
(2)
#1 LR
#1 DM
#4 LR
#4 DM
#6 LR
#6 DM
#7 LR
#7 DM
#11 LR
#11 DM
#13 LR
#13 DM
X
(3)
#1 LR
#1 DM
#4 LR
#4 DM
(2)
#6 LR
#6 DM
#7 LR
#7 DM
#11 LR
#11 DM
(4)
#13 LR
#13 DM
(1)
C1000H
Node #1
#1 LR
#1 DM
#4 LR
#4 DM
#6 LR
#6 DM
#7 LR
#7 DM
#11 LR
#11 DM
#13 LR
#13 DM
C1000H
Node #11
C200HX
Node #4
(5)
#1 LR
#1 DM
#4 LR
#4 DM
#6 LR
#6 DM
#7 LR
#7 DM
#11 LR
#11 DM
#13 LR
#13 DM
(5)
(5)
(5)
X
#1 LR
#1 DM
#4 LR
#4 DM
#6 LR
#6 DM
#7 LR
#7 DM
#11 LR
#11 DM
#13 LR
#13 DM
(1)
1, 2, 3...
1. The C200HW-SLK13/23 SYSMAC LINK Units with node numbers 4 and 6 cannot be in the data link because the local nodes’ total transmission data would exceed 918 words (counting from the highest node number) if those nodes were in the data link. The SYSMAC LINK Units with node numbers 1 and 11 can be in the data link even if the total amount of data exceeds 918 words because they are C1000H-SLK11/SLK21-V1 Units.
2. The C200HW-SLK13/23 SYSMAC LINK Units with node numbers 7 and 13 can be in the data link because the local nodes’ total transmission data does not exceed 918 words (counting from the highest node number).
3. The Units with node numbers 7 and 13 cannot receive data from node 1 because that node’s data is beyond the 918-word limit.
4. The Units with node numbers 7 and 13 can receive data from nodes 7, 11, and 13 because these nodes’ data is within the 918-word limit.
5. The Units with node numbers 1 and 11 can receive data from nodes 1, 7, 11, and 13. (These nodes can receive up to 2966 words.)
56
Restrictions on C200HW-SLK13/14/23/24 Data Link Areas
Case 2
C200HX: C200HW-SLK13/23
C1000H: C1000H-SLK11/21-V1
C200HX
Node #17
Nodes marked with an X cannot be in the data link.
C200HX
Node #2
X
C1000H
Node #18
C1000H
Node #7
Common Link Parameter Table
Section 5-6
C200HX
Node #4
X
C200HX
Node #10
C1000H
Node #1
Data Link Area
C1000H
C200HX
#1 LR (Wd 10)
#1 DM (Wd 254)
#4 LR (Wd 10)
#4 DM (Wd 254)
#2 C200HX
(Read only)
C1000H
C200HX
#7 LR (Wd 10)
#7 DM (Wd 254)
#17 LR (Wd 10)
#17 DM (Wd 254)
#10 C200HX
(Read only)
918 words
C1000H
#18 LR (Wd 10)
#18 DM (Wd 254)
In this example the Units with node numbers 1, 7, 10, 17, and 18 can be part of the data link. Even though it is a read-only node and doesn’t have transmission data, the C200HX with node number 2 cannot be part of the data link because its reception data would exceed 918 words.
The Units with node numbers 10 and 17 cannot receive data from node 1 because that node’s data is beyond the 918-word limit, however the
C1000H-SLK11/SLK21-V1 Units with node numbers 1, 7 and 18 can receive data from nodes 1, 7, 17, and 18.
57
Controlling Data Links
Case 3
C1000H: C1000H-SLK11/21-V1
CV1000 CV500-SLK11/21
C200HX: C200HW-SLK13/23
C1000H
Node #1
All nodes can be in the data link.
Common parameter table
918 words
#1 LR
#1 DM
#2 LR
#2 DM
#3 LR
#3 DM
#4 LR
#4 DM
#5 LR
#5 DM
#6 LR
#6 DM
C1000H
Node #2
#1 LR
#1 DM
#2 LR
#2 DM
#3 LR
#3 DM
#4 LR
#4 DM
#5 LR
#5 DM
#6 LR
#6 DM
CV1000
Node #3
#1 LR
#1 DM
#2 LR
#2 DM
#3 LR
#3 DM
#4 LR
#4 DM
#5 LR
#5 DM
#6 LR
#6 DM
C200HX
Node #4
#4 LR
#4 DM
#5 LR
#5 DM
#6 LR
#6 DM
C200HX
Node #5
#4 LR
#4 DM
#5 LR
#5 DM
#6 LR
#6 DM
Section 5-7
C200HX
Node #6
#4 LR
#4 DM
#5 LR
#5 DM
#6 LR
#6 DM
In this example node numbers 1 through 6 can all be in the data link.
The C200HW-SLK13/23 Units with node numbers 4 through 6 can be in the data link because the local nodes’ transmission data is within the 918-word limit.
The Units with node numbers 1 through 3 can receive data from all 6 nodes because they have a 2966-word limit.
The C200HW-SLK13/23 Units with node numbers 4 through 6 can receive data from the other nodes with node numbers 4 through 6.
5-6-2 Installing C200HW-SLK14/24 SYSMAC LINK Units on C200H PCs
When a C200HW-SLK14/24 SYSMAC LINK Unit is installed on a C200H PC, a data link with up to 2966 linked words can be made, but the maximum number of words that can be refreshed in a C200H node is 918. There are no restrictions on the node number settings or common link parameter settings when C200HW-
SLK14/24 SYSMAC LINK Units are used.
5-7 Controlling Data Links
Data links can be activated or halted by changing the settings of the DIP switches on the start-up Unit, sending a command to the start-up Unit from a CVseries PC, SSS, or CVSS.
5-7-1 DIP Switch Settings
Data links can be started by turning ON pin 2 of DIP switch 1 of the SYSMAC
LINK Unit that is to be used as the start-up Unit. This Unit (node) must be part of the data link. The AR settings in the start-up Unit will be used in creating data links.
Data link operation can be stopped by turning OFF pin 2 of DIP switch 1 on all nodes which are active in data link.
Note The PC must be turned off before changing DIP switch settings.
58
Data Link Precautions Section 5-8
5-7-2 DATA LINK START/HALT Commands
Data link operations can be initiated by issuing a DATA LINK START command from a CV-series PC or CVSS to the start-up node.
Data link operation can be stopped by issuing a DATA LINK HALT command from a CV-series PC or CVSS to the start-up node.
Refer to
6-6-1 DATA LINK START
and
6-6-2 DATA LINK HALT
for details.
5-8 Data Link Precautions
Be sure to consider the precautions listed below when activating a data link or adding a node to an existing data link.
Set-up and Activation Be sure to consider the precautions listed below when setting up and activating a data link.
1, 2, 3...
1. Refresh parameters must be set for each node in the data link when manually generating data link tables. When a data link is started in a node that doesn’t have a data link table, a data link table error will occur and the LNK indicator on that node will flash.
Refresh parameters must be set for all nodes that are included in the common link parameters in the start-up node.
2. With automatic generation of data link tables, the start-up node must be one of the nodes in the data link defined by the settings in AR 07. The node numbers of the other nodes in the data link must also be in the range defined by the settings in AR 07.
For example, if the settings in AR 07 divide the data link area among 4 nodes
(node numbers 1 to 4), node 5 cannot be the start-up node or participate in the data link.
3. With manual generation of data link tables, the node number of the local node must be included in the local refresh parameters.
4. If the beginning LR or DM word in the refresh parameters is set too high, the
LR or DM Area will be exceeded during automatic allocation of link words.
If the data area is exceeded in the start-up node, the LNK indicator on the start-up node will flash and the data link will not operate. If the data area is exceeded in another node, the LNK indicator on that node will flash and it will not participate in the data link.
5. Do not turn on the data link activation switch (DIP switch 1, pin 2) on more than one node. Doing so will not trigger an error, but the start-up node cannot be correctly determined.
Adding Nodes Be sure to consider the precautions listed below when adding a node to an operating data link.
1, 2, 3...
1. The node number of the node being added must be in the common link parameters of the operating data link.
2. If the start-up node of the operating data link is using manual generation of data link tables, the node being added must have its refresh parameters set.
3. If the start-up node of the operating data link is using automatic generation of data link tables, the common link parameters of the node being added must match those of the operating data link, or it cannot be a part of data link operations.
59
Data Link Status
5-9 Data Link Status
Section 5-9
The operational status of the data links in operating levels 0 and 1 is indicated in the data link operating flags. SR 25202 is turned ON when a data link is active in operating level 0 and SR 25205 is turned ON when a data link is active in operating level 1. These flags and corresponding SR bits are shown below.
SR bit
25202
25205
Flag
Operating Level 0 Data Link Operating Flag
Operating Level 1 Data Link Operating Flag
Node Status
Programming Example
In addition to the overall operational status of the data link, the status of any node involved in data link operations can be checked from any other node included in data link operations. The Data Link Status Flags are contained in SR 238 to
SR 245 when data link tables are generated automatically. The user selects the location of the data link status flags in the refresh parameters when data link tables are generated manually.
Note 1. If the Data Link Operating Flag for the local node is OFF, the data link status will remain the same as the status right before the data link was stopped.
Therefore, there is no guarantee that other status information will be correct.
When using the data link status, make sure that the Data Link Operating
Flag for the local node is ON.
2. The Data Link Operating Flag for other nodes and PC Operating Flags are used to confirm that the system has been properly started. These flags alone cannot be used to detect communications errors. To detect communications errors, use the Communications Error Flag and PC Error Flag. The operation of each flag is described in the following table.
Flag
Data Link Operating
Flag for local node
PC Operating Flag
PC Error Flag
Communications Error
Flag
Data Link Operating
Flag for other nodes
Flag operation
ON when the local node is participating in the data links.
When this flag is OFF, data link communications will not be performed properly., and there is no guarantee that other status information is correct.
ON when the PC in the node is operating. This flag operates according to data sent from the remote node and is thus valid only when the Communications Error
Flag is OFF.
ON when an error (fatal error or watchdog timer error) has occurred in the PC. This flag operates according to data sent from the remote node and is thus valid only when the Communications Error Flag is OFF.
ON when data link data is not received continually from the subject node due to a disconnection or other cause.
The flag will turn OFF when data is received properly from the remote node.
ON after the remote node properly participates in the data links. The flag will remain ON even after the remote node ends participation in the data links.
Programming examples using data link status are shown below for the C200H,
C200HS, and C200HX/C200HG/C200HE.
Checking Data Link Participation of Other Nodes
As shown below, use an AND condition of a NO input of the Data Link Operating
60
Data Link Status Section 5-9
Flag for the local node, a NC input of the Communications Error Flag for each node, and a NO input of the Data Link Operating Flag for each node.
Local Node
Data Link Operating
Flag
Node A: Data link participation
Node A
Communications
Error Flag
Node A
Data Link Operating Flag
Node B: Data link participation
Node B
Communications
Error Flag
Node B
Data Link Operating Flag
Node n: Data link participation
Node n
Communications
Error Flag
Node n
Data Link Operating Flag
Checking for Data Link Errors any Node
As shown below, use an OR condition of a NC input of the Data Link Operating
Flag for the local node and NO inputs of the Communications Error Flags of the other nodes.
Data link error occurred in one of the nodes.
Local Node
Data Link Operating
Flag
Node A
Communications
Error Flag
Node B
Communications
Error Flag
Node n
Communications
Error Flag
Outputting a Local Node Error
The following programming can be used to output an error signal when local node data link operation stops.
Local Node
Data Link Operating Flag
DIFU (13)
10000
Reset bit
10000
Local node error output
Local node error output
61
Data Link Status Section 5-9
5-9-1 Automatic Data Link Table Generation
When data link tables are generated automatically, data link status is output to
SR 238 through SR 241 for the operating-level-0 data link. And to SR 242 through SR 245 for the operating-level-1 data link.
Level 0
SR 238
SR 239
SR 240
SR 241
Level 1
SR 242
SR 243
SR 244
SR 245
00 to 03
Node 1
Node 5
Node 9
Node 13
04 to 07
Node 2
Bits
08 to 11
Node 3
Node 6
Node 10
Node 14
Node 7
Node 11
Node 15
12 to 15
Node 4
Node 8
Node 12
Node 16
Each of the above sets of four bits contains the four flags indicating data link status for a node, as shown below.
Bits
00, 04, 08, or 12
Flag
PC Mode*
Function
Turned ON to indicate the PC is in RUN or
MONITOR mode. OFF indicates
PROGRAM mode.
01, 05, 09, or 13
02, 06, 10, or 14
PC Fatal Error*
Communications
Error
Turned ON to indicate the PC has stopped because of a fatal error.
Turned ON to indicate that there is a communications error (time out), that the
Unit is not part of the System, or that the data link is not active.
03, 07, 11, or 15 Data Link Status Turned ON to indicate the node is part of the data link. OFF indicates that the data link tables of the start-up node do not match, or no operation is possible because the data link table has not been created.
Note *The PC Mode and PC Fatal Error Flags are not valid when a communications error has occurred.
Any of the above bits that are not used by the System (i.e., those bits assigned to node numbers beyond the possible range) can be used for work bits.
5-9-2 Manual Data Link Table Generation
When data link tables are generated manually, data link status is output to consecutive words starting with the beginning status word designated in the refresh parameters. Data status is only available for the nodes designated in the refresh parameters, i.e., the nodes from which link data is being received. In the following table “m” is the beginning status word.
Word m m+1 m+2 m+3
00 to 03
Link no. 1
Link no. 5
Link no. 9
Link no. 13
04 to 07
Link no. 2
Link no. 6
Link no. 10
Link no. 14
Bits
08 to 11
Link no. 3
Link no. 7
Link no. 11
Link no. 15
12 to 15
Link no. 4
Link no. 8
Link no. 12
Link no. 16 m+14 m+15
Link no. 57
Link no. 61
Link no. 58
Link no. 62
Link no. 59 Link no. 60
The actual link status table will be only as long as required to store the status of each node for which there is a link (see
Example
, below. Each of the above sets of four bits operates as shown below.
62
Data Link Characteristics Section 5-10
Example
Status Areas
Each of the above sets of four bits contains the four flags indicating data link status for a node, as shown below.
Bits Flag Function
00, 04, 08, or 12
01, 05, 09, or 13
PC Mode*
PC Fatal Error*
Turned ON to indicate the PC is in RUN or
MONITOR mode. OFF indicates
PROGRAM mode.
Turned ON to indicate the PC has stopped because of a fatal error.
02, 06, 10, or 14 Communications
Error
Turned ON to indicate that there is a communications error (time out), that the
Unit is not part of the System, or that the data link is not active.
03, 07, 11, or 15 Data Link Status Turned ON to indicate the node is part of the data link. OFF indicates that the data link tables of the start-up node do not match, or no operation is possible because the data link table has not been created.
Note 1. *The PC Mode and PC Fatal Error Flags are not valid when a communications error has occurred.
2. This status must not overlap other areas which may be in use (for example, the data link area, SEND(90)/RECV(98) area, or areas used by the other
Network).
This example illustrates the location of data link status flags for a 10-node data link with the following parameters. These are the only words that will be used.
Refreshed nodes
Beginning status word
1, 2, 3, 4, 10, 15, 20, 28, 55, 62
DM 0120
Word
DM 0120
DM 0121
DM 0122
00 to 03
Node 1
Node 10
Node 55
04 to 07
Node 2
Node 15
Node 62
Bits
08 to 11
Node 3
Node 20
(Not used.)
12 to 15
Node 4
Node 28
(Not used.)
The following memory areas can be used to store the status data. Be sure to allow enough words after the beginning status word so that the entire link status area fits within the same data area.
Area C200H j C200H
IR and SR 0 to 252, 300 to 511 0 to 252
LR 0 to 63 0 to 63
HR
AR
T/C
DM
0 to 99
0 to 27
0 to 511
0 to 5999
0 to 99
0 to 27
0 to 511
0 to 999
C1000H
0 to 252
0 to 63
0 to 99
0 to 27
0 to 511
0 to 4095
C2000H
0 to 252
0 to 63
0 to 99
0 to 27
0 to 511
0 to 4095
Note The C200H j PCs include the C200HX, C200HG, C200HE, and C200HS.
5-10 Data Link Characteristics
5-10-1 Data Link Communications Cycle Time
Data link servicing is given priority in SYSMAC LINK Systems. The communications time for a data link can thus be maintained as a constant, regardless of whether or not SEND(90)/RECV(98) are used. Fixing the data link communications time at a constant value fixes the data link I/O response time as well.
63
Data Link Characteristics Section 5-10
The communications cycle time can be set either automatically (the default) or controlled externally.
Automatic Generation
When data link tables have been generated automatically, the communications time will be as follows for systems using coaxial cable:
No. of nodes
2
4
8
16
LR and DM Areas
19 ms
19 ms
19 ms
19 ms
Data link area
LR Area only
17 ms
17 ms
18 ms
18 ms
DM Area only
18 ms
18 ms
18 ms
19 ms
The communications time will be as follows for systems using optical fiber cable.
No. of nodes
2
4
8
16
LR and DM Areas
21 ms
22 ms
22 ms
22 ms
Data link area
LR Area only
20 ms
20 ms
21 ms
21 ms
DM Area only
21 ms
21 ms
21 ms
22 ms
Manual Generation
3.Example Calculations
When data link tables have been generated manually, the communications cycle time can be set to a constant value or generated automatically.
The communications cycle time can be set as a constant from 5 to 255 ms in increments of 1 ms via the SSS/CVSS to eliminate variations caused by noise or other factors. When the communications cycle time is not set as a constant, it will be generated automatically according to the equations below. Round the result of the calculation to the nearest millisecond.
Communications cycle time (coaxial cable systems) =
Maximum node number × 85 m s + maximum number of frames × 654 m s
+ number of polled units × 750 m s + number of Link Units × 56 m s
+ total number of words
×
10 m s + 1.322 ms
Communications cycle time (optical fiber cable systems) = maximum node number × 111.5 m s + maximum number of frames × 770 m s
+ number of polled units
×
750 m s + number of Link Units
×
56 m s
+ total number of words
×
10 m s + 1.322 ms
Note The present and maximum values of the communications cycle time can be monitored from a SSS/CVSS.
The examples below calculate the communications cycle time for both coaxial and optical fiber cable with the following characteristics:
Maximum node number: . . . . . . 62
Maximum number of frames: . . 10
Number of polled units:
Number of Link Units
. . . . . . .
. . . . . . . .
4
32
Total number of words . . . . . . . 2000
Communications cycle time (coaxial cable systems) =
62 × 85 m s + 10 × 654 m s + 4 × 750 m s + 32 × 56 m s + 2000 × 10 m s + 1.322 ms
= 37.924 ms (38 ms after rounding)
Communications cycle time (optical fiber cable systems) =
62 × 111.5 m s + 10 × 770 m s + 4 × 750 m s + 32 × 56 m s + 2000 × 10 m s + 1.322 ms
= 40.727 ms (41 ms after rounding)
64
Data Link Characteristics Section 5-10
Note Data links might not operate correctly if the communications cycle time is set to a value shorter than that generated automatically by the system.
Changing the Communications Cycle Time
When the communications cycle time is generated automatically, it can be changed by changing the other network parameters at the SSS/CVSS. The default values and setting ranges of the other network parameters are shown in the table below.
Default value Network parameter
Maximum node number
Number of polled units
Maximum number of frames
62
4
10
Setting range
2 to 62
1 to 62
5 to 255
Example Calculations
Use the following formulae to calculate the change in the communications cycle time that results from a change in other network parameters. A positive result indicates the communications cycle time has been decreased and a negative result indicates it has been increased. Round the result of the calculation to the nearest millisecond.
Change of the communications cycle time (coaxial cable systems) =
(old maximum node number - new maximum node number)
×
85 m s
+ (old maximum number of frames - new maximum number of frames) × 654 m s
+ (old number of polled units - new number of polled units) × 750 m s
Change of the communications cycle time (optical fiber cable systems) =
(old maximum node number - new maximum node number) × 111.5 m s
+ (old maximum number of frames - new maximum number of frames)
×
770 m s
+ (old number of polled units - new number of polled units)
×
750 m s
The examples below calculate the change of the communications cycle time for both coaxial and optical fiber cable when the other network parameters are changed as shown below:
Maximum node number:
Number of polled units:
. . . . . .
. . . . . . .
Changed from 62 to 16
Maximum number of frames: . . Changed from 10 to 13
Changed from 4 to 5
Change of the communications cycle time (coaxial cable systems) =
(62 – 16)
×
85 m s + (10 – 13)
×
654 m s + (4 – 5)
×
750 m s =
1.198 ms (1 ms after rounding)
Change of the communications cycle time (optical fiber cable systems) =
(62 – 16) × 111.5 m s + (10 – 13) × 770 m s + (4 – 5) × 750 m s =
2.069 ms (2 ms after rounding)
Note 1. If the maximum node number is set below the node number of any nodes in the data link, those nodes will no longer be part of the data link.
2. If the maximum number of frames is set too low, errors might occur during execution of events such as SEND(90) and RECV(98) instructions, internode echo tests, and remote monitoring.
3. Lowering the number of polled units will increase the delay between resetting a Unit or turning on its PC’s power and its entrance into the network.
5-10-2 Data Exchange Timing
Data exchange takes place at the end of the cycle during CPU Unit servicing for the SYSMAC LINK Unit, as indicated by the shaded areas in the diagrams. Data exchange is limited to maximum of 1,642 words per cycle.
65
Data Link Characteristics
Program executed
Section 5-10
The timing relationship between program execution and the exchange of data between the PC and the SYSMAC LINK Unit’s buffer memory is illustrated in the diagram below.
1 cycle
Program executed
Program executed
Program executed
Data exchange
I/O refresh
Note Data exchange is not synchronized with data link processing.
5-10-3 Data Link I/O Response Time
The data link I/O response time is the time it takes for data to be transferred to another node via the data link and output after it is input to the local node. In this section, example calculations of the minimum and maximum data link I/O response time are provided. The following system configuration is used in both calculations (just one SYSMAC LINK Unit is mounted on each PC):
System Configuration
Cable type: . . . . . . . . . . . . . . . . .
Maximum node number: . . . . . .
Coaxial
62
Number of Link Units
Number of LR words
. . . . . . . .
. . . . . . . . .
8
8 words/node
Number of DM words
Number of polled units:
. . . . . . . .
. . . . . . .
16 words/node
Maximum number of frames: . . 10
4
Unit 1
SYSMAC LINK Unit
PC
Input
Input on PC of Unit 1 LR bit
SYSMAC LINK Unit
PC
Unit 7
Output on PC of Unit 7
X
X
Output
Input LR XXXX LR XXXX Output
X
The data link I/O response time depends on the communications cycle time, input ON delay, output ON delay, and the cycle times of the PCs involved. The values are detailed below.
Communications Cycle Time The communications cycle time is calculated in the manner described in
5-10-1
Data LInk Communications Cycle Time
.
Communications cycle time =
62 × 85 m s + 10 × 654 m s + 4 × 750 m s + 8 × 56 m s + 24 × 10 m s + 1.322 ms
= 18.500 ms (19 ms after rounding)
Input ON Delay
Output ON Delay
Node #1 PC Cycle Time
The input ON delay is the time it takes for an input device to turn ON an input to the PC after receiving an input signal. In this system the input ON delay is 1.5 ms.
The output ON delay is the time it takes for an output device to turn ON an output signal after receiving an output from the PC. In this system the output ON delay is 15 ms.
The cycle time of the PC at node #1 is 20 ms or 15 ms.
66
Data Link Characteristics Section 5-10
Node #7 PC Cycle Time The cycle time of the PC at node #7 is 50 ms or 15 ms.
Minimum Response Time
The following diagram illustrates the data flow that will produce the minimum response time, i.e., the time required if all signals and data transmissions are processed as soon as they occur.
Input
Input device
Input ON delay
1 cycle
I/O refresh
Data exchange
Program PC at node #1
SYSMAC LINK Unit transmission processing
Data link transmission
1 cycle
Communications cycle time
Program
PC at node #7
Output device
Data link I/O response time
Output ON delay
Output
The equation for minimum data link I/O response time is as follows:
Response time = input ON delay (0 ms) + cycle time of PC at node #0 (20 ms)
+ communications cycle time (19 ms) × 2 + cycle time of PC at node #7 (50 ms)
+ output ON delay (0 ms)
= 108 ms
Note Noise may increase I/O delays.
67
Data Link Characteristics Section 5-10
Maximum Response Time
The maximum data link I/O response time is calculated for four cases.
Case 1 The following diagram illustrates the data flow that will produce the maximum data link I/O response time when the cycle time of the PC at nodes #1 and 7 are greater than the communications cycle time.
Input
Input device
Input ON delay
I/O refresh
Data exchange
X
(1)
1 cycle
Program
PC at node #1
X
(2)
SYSMAC LINK Unit transmission processing
Communications cycle time
X
(3)
X
Previous communications cycle data
Data link transmission
SYSMAC LINK Unit transmission processing
X
(4)
Program PC at node #7
Data link I/O response time
1 cycle
Output device
Output ON delay
Output
There are four points shown in the diagram above where processing is delayed, increasing the data link I/O response time.
1, 2, 3...
1. The input arrives in the PC just after I/O refreshing, causing a delay of up to one cycle before the input is read into the PC.
2. Data exchange occurs just after the PC at node #1 passes the token that makes it the polling unit, causing a delay of up to one communications cycle time before the data is transferred in data link processing.
3. At node #7, data from the previous data exchange is still being transferred, causing a delay of up to one cycle before the input is read into the PC.
4. The data transferred in data link processing arrives at the PC at node #7 after data exchange, so the data will not be read into the PC until the next data exchange, causing a delay of up to one cycle.
Up to 1,642 words can be transferred in a single data exchange, so a delay of another cycle will occur if more than 1,642 words are being transferred.
The equation for maximum data link I/O response time is as follows:
Response time = input ON delay (1.5 ms) + cycle time of PC at node #1 (20 ms)
×
2
+ communications cycle time (19 ms)
×
3 + PC cycle time at node #7 (50 ms)
×
3*
+ output ON delay (15 ms) = 263.5 ms*
Note 1. *If more than 1,642 words are being transferred, 4 cycles of the PC at node
#7 are required and the total response time becomes 313.5 ms.
2. Noise may increase I/O delays.
68
Data Link Characteristics
Case 2
Section 5-10
The following diagram illustrates the data flow that will produce the maximum data link I/O response time when the cycle time of the PC at node #1 y
the communications cycle time and the cycle time of the PC at node #7 t
the communications cycle time.
Input
I/O refresh
Data exchange
Input device
Input ON delay
X
(1)
Program
1 cycle
PC at node #1
X
(2)
Communications cycle time
SYSMAC LINK Unit transmission processing
Data link transmission
SYSMAC LINK Unit transmission processing
PC at node #7
X (3)
Program
1 cycle
Output device
Data link I/O response time
Output ON delay
Output
There are three points shown in the diagram above where processing is delayed, increasing the data link I/O response time.
1, 2, 3...
1. The input arrives in the PC just after I/O refreshing, causing a delay of up to one cycle before the input is read into the PC.
2. Data exchange occurs just after the PC at node #1 passes the token that makes it the polling unit, causing a delay of up to one communications cycle time before the data is transferred in data link processing.
3. The data transferred in data link processing arrives at the PC at node #7 after data exchange, so the data will not be read into the PC until the next data exchange, causing a delay of up to one cycle.
Up to 1,642 words can be transferred in a single data exchange, so a delay of another cycle will occur if more than 1,642 words are being transferred.
The equation for maximum data link I/O response time is as follows:
Response time = input ON delay (1.5 ms) + cycle time of PC at node #1 (20 ms) × 2
+ communications cycle time (19 ms) × 3 + PC cycle time at node #7 (15 ms) × 2*
+ output ON delay (15 ms)
= 143.5 ms*
Note 1. *If more than 1,642 words are being transferred, 3 cycles of the PC at node
#7 are required and the total response time becomes 158.5 ms.
2. Noise may increase I/O delays.
69
Data Link Characteristics Section 5-10
Case 3
Input
X
Input device
Input ON delay
The following diagram illustrates the data flow that will produce the maximum data link I/O response time when the cycle time of the PC at node #1 t the communications cycle time and the cycle time of the PC at node #7 y
the communications cycle time.
I/O refresh
Data exchange
(1)
1 cycle
Program
PC at node #1
A
X
(2)
SYSMAC LINK Unit transmission processing
Communications cycle time
(3)
Previous communications cycle data
X
Data link transmission
SYSMAC LINK Unit transmission processing
X (4)
PC at node #7 Program
Data link I/O response time
1 cycle
Output device
Output ON delay
Output
There are three points shown in the diagram above where processing is delayed, increasing the data link I/O response time.
1, 2, 3...
1. The input arrives in the PC just after I/O refreshing, causing a delay of up to one cycle before the input is read into the PC.
2. At point A, data from the previous exchange is still being transferred, so new data cannot be exchanged, causing a delay of one communications cycle time. Furthermore, the data exchange then occurs just after the PC at node
#1 passes the token for the polling unit, causing another delay of one communications cycle time before the data is transferred in data link processing.
3. At node #7, data from the previous data exchange is still being transferred, causing a delay of up to one cycle before the input is read into the PC.
4. The data transferred in data link processing arrives at the PC at node #7 after data exchange, so the data will not be read into the PC until the next data exchange, causing a delay of up to one cycle.
Up to 1,642 words can be transferred in a single data exchange, so a delay of another cycle will occur if more than 1,642 words are being transferred.
The equation for maximum data link I/O response time is as follows:
Response time = input ON delay (1.5 ms) + cycle time of PC at node #1 (15 ms) × 2
+ communications cycle time (19 ms) × 3 + PC cycle time at node #7 (50 ms) × 3*
+ output ON delay (15 ms) = 253.5 ms*
Note 1. *If more than 1,642 words are being transferred, 4 cycles of the PC at node
#7 are required and the total response time becomes 303.5 ms.
2. Noise may increase I/O delays.
70
Data Link Characteristics
Case 4
Section 5-10
The following diagram illustrates the data flow that will produce the maximum data link I/O response time when the cycle time of the PC at node #1 t the communications cycle time and the cycle time of the PC at node #7 t the communications cycle time.
Input
Input device
Input ON delay
I/O refresh
Data exchange
X (1)
1 cycle
Program PC at node #1
A
X
(2)
SYSMAC LINK Unit transmission processing
Communications cycle time
Data link transmission
SYSMAC LINK Unit transmission processing
(3)
X
PC at node #7
Program
1 cycle
Output device
Data link I/O response time
Output ON delay
Output
There are three points shown in the diagram above where processing is delayed, increasing the data link I/O response time.
1, 2, 3...
1. The input arrives in the PC just after I/O refreshing, causing a delay of up to one cycle before the input is read into the PC.
2. At point A data from the previous data exchange is still being transferred, so the new data cannot be exchanged, causing a delay of up to one communications cycle time. Furthermore, the data exchange then occurs just after the PC at node #1 passes the token that makes it the polling unit, causing another delay of up to one communications cycle time before the data is transferred in data link processing.
3. The data transferred in data link processing arrives at the PC at node #7 while data exchange is taking place, so the data will not be read into the PC until the next data exchange, causing a delay of up to one cycle.
Up to 1,642 words can be transferred in a single data exchange, so a delay of another cycle will occur if more than 1,642 words are being transferred.
The equation for maximum data link I/O response time is as follows:
Response time = input ON delay (1.5 ms) + cycle time of PC at node #1 (15 ms) × 2
+ communications cycle time (19 ms) × 3 + PC cycle time at node #7 (15 ms) × 2*
+ output ON delay (15 ms) = 133.5 ms*
Note 1. *If more than 1,642 words are being transferred, 3 cycles of the PC at node
#7 are required and the total response time becomes 148.5 ms.
2. Noise may increase I/O delays.
71
SECTION 6
Data Read/Write Services
The data read/write services include the SEND(90) and RECV(98) instructions and CV-mode commands. SYSMAC LINK
Units can receive but not transmit CV-mode commands. The data read/write services allow data transmission between nodes and distributed control.
6-1 About Data Read/Write Services
6-2 NETWORK READ/WRITE Instructions
6-3
6-2-1 Specifying Destination Nodes
6-2-2 Instruction Specifications
6-2-3
6-2-4 NETWORK READ - RECV(98)
6-2-5 Response Codes
6-2-6 Network Instruction Status Flags
6-2-7 Delay Times
CV-mode Command/Response Format
6-3-1 List of CV-mode Commands for PCs
6-3-2 List of CV-mode Commands for SYSMAC LINK Units
6-3-3 CV-mode Response Codes
6-4 Memory Area Designations
6-4-1
6-4-2 Memory Area Code
6-4-3 Data Configuration
6-5 CV-mode Commands for PCs
6-5-1 MEMORY AREA READ
6-5-2
6-5-3 MULTIPLE MEMORY AREA READ
6-5-4 PARAMETER AREA WRITE
6-5-5 PROGRAM AREA READ
6-5-6 PROGRAM AREA WRITE
6-5-7 RUN
6-5-8 STOP
6-5-9
6-5-10 CONTROLLER STATUS READ
6-5-11 CLOCK READ
6-5-12 CLOCK WRITE
6-5-13 ERROR CLEAR
6-5-19
NETWORK WRITE - SEND(90)
Word/Bit Addresses
MEMORY AREA WRITE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTROLLER DATA READ
6-6-3 RESET
6-6-4
6-6-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-14 FILE MEMORY INDEX READ
6-5-17 FORCED SET/RESET
FORCED STATUS READ
6-6-2 DATA LINK HALT
6-6-7 DATA LINK STATUS READ
6-6-8 INTERNODE ECHO TEST
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-15 FILE MEMORY BLOCK READ
6-5-16 FILE MEMORY BLOCK WRITE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BROADCAST TEST DATA SEND
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5-18 FORCED SET/RESET CANCEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6 CV-mode Commands for SYSMAC LINK Units
6-6-1 DATA LINK START
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTROLLER DATA READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-5 CONTROLLER STATUS READ
6-6-6 NETWORK STATUS READ
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6-9 BROADCAST TEST RESULTS READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
99
100
101
102
102
95
97
97
98
98
94
94
95
91
92
92
93
103
103
103
104
104
105
107
108
109
110
110
89
89
90
90
90
87
87
88
88
89
77
79
80
84
86
74
74
74
75
76
73
NETWORK READ/WRITE Instructions Section 6-2
6-1 About Data Read/Write Services
In addition to SEND(90) and RECV(98) instructions, a C-series PC equipped with a SYSMAC LINK Unit* can receive but not issue CV-mode commands.
With these data read/write services, data can be transmitted between PCs and CVSS or CV-series PCs in the network and operation at other nodes can be controlled remotely.
The data read/write services use a command/response format. Each time that data or a command from a CVSS or CV-series PC is transmitted, the receiving node returns a response. If responses aren’t needed, the Unit can be set so that responses are not returned. The same transmission can be broadcast simultaneously to all nodes on the network.
Note *The SYSMAC LINK Units covered in this manual can receive and process the
CV-mode commands issued from a computer or CV-series PC, but the
C200H-SLK21 and C1000H-SLK21 SYSMAC LINK Units cannot receive CVmode commands.
Data Read/Write Service Transmissions
The data read/write services with the SYSMAC LINK Unit are primarily used in the 4 situations described below.
Computer Transmission
PC Transmission
Computer Reception
PC Reception
Prepare a program in the computer that transmits commands and receives responses. Should the SYSMAC LINK Support Board be used, make sure that the proper drivers and files are installed. (When programming in the C code, transmit commands with slksend and receive responses with slkrecv or slkrcvw .)
Transfer data using the SEND(90) and RECV(98) instructions. You may need to move data being transferred to/from the location in memory specified in the instruction, but the actual transmission and reception is handled automatically.
(No commands can be transmitted other than SEND(90) and RECV(98).)
A program that returns proper responses for received commands must be prepared in the computer prior to command reception.
The SYSMAC LINK Unit receives and processes SEND(90), RECV(98), and
CV-mode commands and returns the proper responses automatically. Since all of the processing is handled automatically, it isn’t necessary to prepare a routine for command reception in the PC program.
6-2 NETWORK READ/WRITE Instructions
Data is sent from the PC to other nodes (PCs or computers) using the NET-
WORK READ/WRITE instructions (SEND(90) or RECV(98)) in the PC user program.
6-2-1 Specifying Destination Nodes
The following two types of communications, based on specifying destination nodes, are possible.
Sending and Receiving
Data Between Specific
Nodes
The SEND(90) and RECV(98) instructions can be used to transfer control data to or from a node specified by node address.
Send data
Node 1
Receive data
Node 2 Node 3 Node 4 Node 5
74
NETWORK READ/WRITE Instructions
Broadcasting Data
Section 6-2
It is possible to transfer the same data to all nodes in a network simultaneously by designating the destination node as 00. This transmission is called broadcasting. No responses are returned to broadcasts. (Broadcasting cannot be performed with the RECV(98) instruction.)
Broadcast data
Node 1 Node 2 Node 3 Node 4 Node 5
Note With C200HX/HG/HE PCs, two Communications Units can be connected but the bridge function and gateway function cannot be used.
C200HX/HG/HE CS, CVM1/CV
6-2-2 Instruction Specifications
The NETWORK READ/WRITE instructions (SEND(90)/RECV(98)) enable data to be sent and received between nodes within a single network under control of a user program. The user can specify that a receiving node send a response to the sending node to acknowledge receipt of the data. The basic specifications of these instructions are given in the following table.
Transmission format
Packet length
Data content
1:1 data transfer
1:N data transmit only (broadcast mode; no response)
256 words max. (within the same memory area only)
When SEND(90) is executed, command/response data for a data transmission request is transferred.
When RECV(98) is executed, command/response data for a data reception request is transferred.
Response time-out parameters
Number of retries
FF: Response time-out ignored.
01 to FE: user-definable
(in increments of 100 ms, 100 to 25,400 ms)
0 to 15
LR
HR
AR
T/C
DM
Data Transfer Area
Area
IR and
SR
EM
C200HX/HG/HE
000 to 511 (SEND)
000 to 252, 256 to
511 (RECV)
00 to 63
00 to 99
00 to 27
000 to 511
0000 to 6655
0000 to 6143
The data transfer area, which is used for data transmission and reception using the SEND and RECV instructions, varies with the PC.
C200HS
000 to 511 (SEND)
000 to 252, 256 to
511 (RECV)
00 to 63
00 to 99
00 to 27
000 to 511
0000 to 6655
C200H
000 to 255 (SEND)
000 to 252 (RECV)
00 to 63
00 to 99
00 to 27
000 to 511
0000 to 1999 (SEND)
0000 to 0999 (RECV)
C1000H
000 to 255 (SEND)
000 to 252 (RECV)
00 to 63
00 to 99
00 to 27
000 to 511
0000 to 4095
C2000H
000 to 255 (SEND)
000 to 252 (RECV)
00 to 63
00 to 99
00 to 27
000 to 511
0000 to 6655
None
Unit: word
75
NETWORK READ/WRITE Instructions Section 6-2
Note The data transfer area must not exceed the above ranges.
6-2-3 NETWORK WRITE - SEND(90)
The ladder diagram programming symbols, operand names, and allowable data areas for SEND(90) are shown below.
Ladder Symbols
SEND(90)
S
D
C
@SEND(90)
S
D
C
Operand Data Areas
S : Source beginning word
IR, SR, AR, DM, HR, TC, LR
D : Destination beginning word
IR, AR, DM, HR, TC, LR
C : First control data word
IR, AR, DM, HR, TC, LR
Limitations
Description
Control Data
C through C+2 must be within the same data area and must be within the values specified below. The first and last source word must be within the same data area.
When executed with an ON execution condition, SEND(90) transfers data beginning at word S, to addresses specified by D in the designated node on the
SYSMAC LINK System. The control words, beginning with C, specify the number of words to be sent, the destination node, and other parameters.
Bit 15 of C+1 determines whether the instruction is for a SYSMAC NET Link
System or a SYSMAC LINK System.
Set the destination node number to 00 to broadcast the data to all nodes in the network.
Word
C
C+1
C+2
Bits 00 to 07 Bits 08 to 15
Number of words (0 to 256 in 4-digit hexadecimal, i.e., 0000 hex
0100 hex
)
to
Response time limit (0.1 and 25.4
seconds in 2-digit hexadecimal without decimal point, i.e., 00 hex
FF hex
)
to
Note: The response time will be 2 seconds if the limit is set to 0 hex
There will be no time limit if the
.
time limit is set to FF hex
.
Bits 08 to 11:
No. of retries (0 to 15 in hexadecimal, i.e., 0 hex
to F hex
)
Bit 12: Indirectly addressed beginning reception flag
ON: Indirect addressing
OFF: No indirect addressing
Bit 13 ON: Response not returned.
OFF: Response returned.
1
Bit 14 ON: Operating level 0
OFF: Operating level 1
Bit 15: Set to 1.
(SYSMAC LINK flag)
Destination node number
(1 to 62 in 2-digit hexadecimal, i.e., 01 hex
to 3E hex
) 2
Bits 08 to 12:
Destination node unit number (0 to 4) 3
Bits 13 to 15: Set to 0.
Note 1. If the instruction is set for broadcast transmission, no response will be returned even if bit 13 is OFF.
2. The node number of the PC executing the send cannot be set.
3. Set the destination node unit number to 00 when sending data to a PC. Settings 01 to 04 specify computer applications 1 to 4.
76
NETWORK READ/WRITE Instructions Section 6-2
4. Indirectly Addressed Beginning Reception Flag:
The CV-series PC has a larger data area than the C-series PC. Therefore, the beginning reception word of the destination node cannot be always designated by the operand of the SEND(90). If the beginning reception word cannot be designated, set the indirectly addressed beginning reception flag to 1 (ON: indirect addressing), in which case the second operand (D) will be the indirect beginning reception word, and it will be possible to designate the beginning reception word (rightmost word) of the destination node in BCD with the word designated by the second operand (D).
Bit
D + 0
D + 1
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Data area code 0 0 0 0 Word no. (fifth digit)
Word no. (fourth digit) Word no. (third digit)
Word no. (second digit)
Word no. (first digit)
This operation is possible with a C200HW-SLK13/14/23/24 SYSMAC LINK
Unit mounted in a C200HX, C200HG, C200HE, C200HS, or C200H PC only.
Refer to the following table to designate the data area.
Destination node (C-series PC)
I/O (IR)
Area
Link Relay (LR)
Data area
00
06 code
Holding Relay (HR) 07
Auxiliary Relay (AR) 08
Timer/Counter (T/C) 03
Data Memory (DM) 05
Destination node (CV-series PC)
Area
Core I/O (CIO)
CPU Bus Link (G)
Data area
00
01 code
Auxiliary (A)
Timer (T)
02
03
Counter (C)
Data Memory (D)
Extended Banks 0 to 7
04
05
10 to 17
Memory (E)
Current bank 18
6-2-4 NETWORK READ - RECV(98)
The ladder diagram programming symbols, operand names, and allowable data areas for RECV(98) are shown below.
Ladder Symbols
RECV(98)
S
D
C
@RECV(98)
S
D
C
Operand Data Areas
S : Source beginning word
IR, SR, AR, DM, HR, TC, LR
D : Destination beginning word
IR, AR, DM, HR, TC, LR
C : First control data word
IR, AR, DM, HR, TC, LR
Limitations
Description
C through C+2 must be within the same data area and must be within the values specified below.
When executed with an ON execution condition, RECV(88) transfers data beginning at S from a node on the SYSMAC LINK System to words beginning at
D. The control words, beginning with C, provide the number of words to be received, the source node, and other transfer parameters.
77
NETWORK READ/WRITE Instructions Section 6-2
Bit 15 of C+1 determines whether the instruction is for a SYSMAC NET Link
System or a SYSMAC LINK System.
Word
C
C+1
C+2
Bits 00 to 07 Bits 08 to 15
Number of words (0 to 256 in 4-digit hexadecimal, i.e., 0000 hex
0100 hex
)
to
Response time limit (0.1 and 25.4
seconds in 2-digit hexadecimal without decimal point, i.e., 00 hex
FF hex
)
to
Note: The response time will be 2 seconds if the limit is set to 0 hex
There will be no time limit if the
.
time limit is set to FF hex
.
Bits 08 to 11:
No. of retries (0 to 15 in hexadecimal, i.e., 0 hex
to F hex
)
Bit 12: Indirectly addressed beginning destination flag
ON: Indirect addressing
OFF: No indirect addressing
Bit 13: Set to 0.
Bit 14 ON: Operating level 0
OFF: Operating level 1
Bit 15: Set to 1.
(SYSMAC LINK flag)
Source node number
(1 to 62 in 2-digit hexadecimal, i.e., 01 hex
to 3E hex
)
1
Bits 08 to 11:
Source node unit number (0 to 4)
2
Bits 13 to 15: Set to 0.
Note 1. The node number of the PC executing RECV(98) cannot be set.
2. Set the source node unit number to 00 when sending data to a PC. Settings
01 to 04 specify computer applications 1 to 4.
3. Indirectly Addressed Beginning Destination Flag:
The CV-series PC has a larger data area than the C-series PC. Therefore, the beginning destination word of the destination node cannot be always designated by the operand of the RECV instruction. If the beginning destination word cannot be designated, set the indirectly addressed beginning destination flag to 1 (ON: indirect addressing), in which case the first operand
(S) will be the indirect beginning destination word, and it will be possible to designate the beginning destination word (rightmost word) of the destination node in BCD with the word designated by the first operand (S).
Bit
S + 0
S + 1
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Data area code 0 0 0 0 Word no. (fifth digit)
Word no. (fourth digit) Word no. (third digit)
Word no. (second digit)
Word no. (first digit)
This operation is possible with a C200HW-SLK13/14/23/24 SYSMAC LINK
Unit mounted in a C200HX, C200HG, C200HE, C200HS, or C200H PC only.
Refer to the following table to designate the data area.
Destination node (C-series PC)
I/O (IR)
Area
Link Relay (LR)
Data area
00
06 code
Holding Relay (HR) 07
Auxiliary Relay (AR) 08
Timer/Counter (T/C) 03
Data Memory (DM) 05
Destination node (CV-series PC)
Area
Core I/O (CIO)
CPU Bus Link (G)
Data area
00
01 code
Auxiliary (A)
Timer (T)
Counter (C)
02
03
04
Data Memory (D)
Extended Banks 0 to 7
05
10 to 17
Memory (E)
Current bank 18
78
NETWORK READ/WRITE Instructions Section 6-2
6-2-5 Response Codes
When SEND(90) or RECV(98) is used in a SYSMAC LINK System, a response code is returned to indicate that the data transfer was completed successfully or identify the nature of the error when communications are not completed successfully.
The most recent response code will be retained until another SEND(90) or
RECV(98) instruction is executed. The output bits and the error codes are as follows:
PC
C200HX, C200HG, C200HE, ,
C1000H/C2000H
Operating level
Level 0
Level 1
Levels 0 and 1
2
Bits 1
SR 23700 to SR 23707
SR 23708 to SR 23715
SR 23700 to SR 23707
03
04
05
06
07
08
09
00
01
02
Response code
Name Meaning
Normal end 3
Parameter error
Transmission impossible
Communications controller error
Setting error
CPU Unit error
Data transfer was completed successfully.
SEND(90)/RECV(98) instruction operands are not within specified ranges.
The System was reset during execution of the instruction or the destination node is not in the System.
Destination not in System The destination node is not in the System.
Busy error The destination node is busy and cannot receive the transfer.
Response timeout
Response error
A response was not received within the time limit.
The response received from the destination node was incorrect.
An error occurred in the communications controller.
The node number was set incorrectly.
A CPU Unit error occurred in the PC of the destination node.
Note 1. The response codes listed here occupy only one byte, unlike the command/ response response codes which occupy two bytes.
2. Only the most recent response code, from either level, is retained.
3. The response code will also be 00 while the instruction is being executed.
79
NETWORK READ/WRITE Instructions Section 6-2
6-2-6 Network Instruction Status Flags
SEND(90) and RECV(98) are based on command/response processing. That is, the transmission is not complete until the sending node receives and acknowledges a response from the destination node. Operation without a response is also possible for SEND(90), if desired. The SEND(90)/RECV(98)
Enable Flag is not turned ON until the first END(01) after the transmission is completed.
If multiple SEND(90)/RECV(98) operations are used, the following flags must be used to ensure that any previous operation is completed before attempting another. Because the C200H/C200HS provides separate flags for each operating level, it is possible to control these independently and have operations going on in both levels simultaneously. With the C1000H/C2000H, only one SEND(90)/RECV(98) operation should be performed in the network at a time, regardless of the number of operating levels.
C200HX/C200HG/C200HE/
C200HS/C200H
Enable Flag
Level 0: SR 25201
Level 1: SR 25204
Error Flag
Level 0: SR 25200
Level 1: SR 25203
C1000H/C2000H Functions
Enable Flag
All levels SR 25204
Error Flag
All levels: SR 25203
OFF during SEND(90)/RECV(98) execution (including command response processing). Do not start a SEND(90)/RECV(98) operation unless this flag is ON.
OFF following normal completion of SEND/RECV (i.e., after reception of response signal)
ON after an unsuccessful SEND(90)/RECV(98) attempt. Error status is maintained until the next SEND(90)/RECV(98) operation.
Error types:
Time-out error (command/response time greater than 1 second)
Transmission data errors
Timing
Enable Flag
Error Flag
The following diagram shows the status of the Enable Flag, Error Flag, and response code while two network instructions are issued in the C1000H PC. An error occurs during execution of first instruction.
Response code
Previous response code
00
Instruction #1 received
Instruction #2 response code
1
0
1
0
Instruction #1 response code
00
Instruction #1 completed
Instruction #2 received
Instruction #2 completed
Data Processing for
SEND(90)/RECV(98)
Programming Example:
Multiple
SEND(90)/RECV(98)
Data is transmitted for SEND(90) and RECV(98) for the C1000H/C2000H when
SEND(90)/RECV(98) is executed and for the C200H/C200H j when END(01) is executed. Final processing for transmissions/receptions is performed when
END(01) is executed for all PCs.
To ensure successful SEND(90)/RECV(98) operations, the program must use the SEND(90)/RECV(98) Enable Flag and SEND(90)/RECV(98) Error Flags to confirm that execution is possible. The following program shows one way to do this:
80
NETWORK READ/WRITE Instructions
00000 25204 12802
12801
(Enable Flag)
12800
12800 25204
12800 25203
SEND(90)/RECV(98)
Error Flag
00001 25204 12800
12803
12802
12802 25204
12802 25203
SEND(90)/RECV(98)
Error Flag
12802 25204 12800
Section 6-2
S
KEEP(11)
12800
12800 prevents execution of SEND(90) until
RECV(98) (below) is completed. IR 00000 is turned ON to start transmission.
R
@MOV(21)
#000A
DM 0000
@MOV(21)
#8000
DM 0001
@MOV(21)
#0003
DM 0002
XFER(70)
#0010
000
DM 0010
@SEND(90)
DM 0010
DM 0020
DM 0000
DIFU(13) 12801
Data is placed into control data words to specify the 10 words to be transmitted to node 3 in operating level 0.
DM 000 0 0 0 A
DM 001 8 0 0 0
10 words
DM 002 0 0 0 3 Node 3 (a PC)
Transfers the 10 words beginning at IR 000 to the 10 words beginning at DM 0010.
00200
S
KEEP(11)
12802
Turns ON to indicate transmission error.
12802 prevents execution of RECV(98) when
SEND(90) above has not completed. IR
00001 is turned ON to start transmission.
R
@MOV(21)
#0010
DM 0003
@MOV(21)
#8000
DM 0004
@MOV(21)
#0004
DM 0005
@RECV(98)
HR 10
LR 10
DM 0003
DIFU(13) 12801
00201
XFER(70)
#0016
LR 10
DM 0030
Data moved into control data words to specify the 16 words to be transmitted from node 4 in operating level 0.
DM 003 0 0 1 0 16 words
DM 004 8 0 0 0
DM 005 0 0 0 4 Node 4 (a PC)
Turns ON to indicate reception error.
Transmitted data moved into words beginning at DM 0030 for storage.
81
NETWORK READ/WRITE Instructions Section 6-2
Indirect Addressing of Beginning Words for C200H/C200H j PCs
00000 25204 12802
12801
(Enable Flag)
12800
12800 25204
S
KEEP(11)
12800
R
@MOV(21)
#000A
DM 0000
@MOV(21)
#8000
DM 0001
@MOV(21)
#0003
DM 0002
@MOV(21)
#0500
DM 0020
@MOV(21)
#4000
DM 0021
XFER(70)
#0010
000
DM 0010
@SEND(90)
DM 0010
DM 0020
DM 0000
DIFU(13) 12801
The transmission program is started when IR
00000 goes ON, provided that the
SEND(90)/RECV(98) Enable Flag is ON (indicating RECV(98) isn’t being executed).
IR 12800 is ON while SEND(90) is being executed.
Data is placed into control data words to specify the 10 words to be transmitted to node 3 in operating level 0.
DM 000 0 0 0 A 10 words
DM 001 8 0 0 0
DM 002 0 0 0 3 Node 3 (a PC)
Indirectly addressed beginning destination word. Beginning destination word in destination node = DM 4000.
DM 020 0 5 0 0
DM 021 4 0 0 0
Transfers the 10 words beginning at IR 000 to the 10 words beginning at DM 0010.
SEND(90)/RECV(98)
Error Flag
12800 25203
00200
Turns ON to indicate transmission error.
00001 25204 12800
S
KEEP(11)
12802
12802 prevents execution of RECV(98) when
SEND(90) above has not completed. IR
00001 is turned ON to start transmission.
12803
R
(Continued on the next page)
82
NETWORK READ/WRITE Instructions
(Continued from previous page)
12802
12802 25204
12802 25203
SEND(90)/RECV(98)
Error Flag
12802 25204 12800
Section 6-2
@MOV(21)
#0010
DM 0003
@MOV(21)
#8000
DM 0004
@MOV(21)
#0004
DM 0005
@MOV(21)
#0500
HR 10
@MOV(21)
#5000
HR 11
@RECV(98)
HR 10
LR 10
DM 0003
DIFU(13) 12801
00201
XFER(70)
#0016
LR 10
DM 0030
Data moved into control data words to specify the 16 words to be transmitted from node 4 in operating level 0.
DM 003 0 0 1 0 16 words
DM 004 8 0 0 0
DM 005 0 0 0 4 Node 4 (a PC)
Indirectly addressed beginning destination word. Beginning destination word in destination node = DM 5000.
HR 10
HR 11
0 5
5 0
0 0
0 0
Turns ON to indicate reception error.
Transmitted data moved into words beginning at DM 0030 for storage.
83
NETWORK READ/WRITE Instructions Section 6-2
6-2-7 Delay Times
SEND(90)
The two charts which follow indicate the sequence of processing which will enable users to calculate the maximum delay time to be expected between the time SEND(90) or RECV(98) is executed and the time the data is stored in the remote or local node’s memory area, ready for use by other instructions in the program.
The following diagram indicates the data flow which will yield the maximum delay time from the time SEND(90) is executed by the user program to the time the SYSMAC LINK Unit stores the data in the destination Unit’s memory.
Note Be sure to take into account the time required for data links and program execution, which are not included in the following example.
SEND(90) executed
Transmission processing
SYSMAC LINK Unit servicing
(source node)
Communications cycle
Reception processing
SYSMAC LINK Unit servicing
(destination node)
Max. transmission delay
Data stored
Max. transmission delay = LINK Unit servicing interval (source node) +
Transmission processing + Communications cycle time + Reception processing + LINK Unit servicing interval (destination node).
SYSMAC LINK Unit servicing is performed once per PC scan.
Delay cause
Transmission/reception processing
Communications cycle time 1
Delay (ms)
No. of words transferred × 0.013 ms + 5 ms
Coaxial Max. node no. × 0.01 ms + no. of nodes × 0.075 ms
+ no. of polled units × 0.75 ms + 1.322 ms
Optical Max. node no. × 0.01 ms + no. of nodes × 0.133 ms
+ no. of polled units × 0.75 ms + 1.322 ms
Note 1. When the data link is halted. Refer to
5-10-1 Data Link Communications
Cycle Time
for details on the communications cycle time when the data link is operating.
2. The I/O response time might increase due to noise or restrictions on the number of frames that can be transmitted while the data link is operating.
84
NETWORK READ/WRITE Instructions Section 6-2
Example
RECV(98) Instruction
Maximum Delay Time
In this example, the maximum transmission delay is calculated for an instruction sending 256 words of data in a system with 32 nodes. Network specifics are detailed below:
Max. node number:
Number of nodes:
32
32
Number of polled units: 4
Number of words: 256
Communications:
Data link: coaxial cable halted
Delay cause
LINK Unit servicing
Transmission processing
Communications cycle time
Reception processing
Maximum delay (ms)
PC scan time
8.328 ms
7.042 ms
8.328 ms
The maximum transmission delay is thus:
(PC scan time
×
2) + 23.698 ms.
The following indicates the data flow which will yield the maximum transfer interval from the time the RECV(98) instruction is executed by the user program to the time the SYSMAC LINK Unit stores the data in the local Unit’s memory area.
Note Be sure to take into account the time required for data links and program execution, which are not included in the following example.
RECV(98) executed Data stored
Max. transmission delay
SYSMAC LINK Unit servicing
(source node)
Transmission processing
(command)
Reception processing
(response)
Communications cycle
Reception processing
(command)
Transmission processing
(response)
SYSMAC LINK Unit servicing
(destination node)
Max. transmission delay = LINK Unit servicing interval (source node) +
Transmission processing (command) + Communications cycle + Reception processing (command) + LINK Unit servicing interval (destination node) +
Transmission processing (response) + Communications cycle + Reception processing (response) + LINK Unit servicing interval (source node).
SYSMAC LINK Unit servicing is performed once per PC scan.
Delay cause Delay (ms)
Transmission/reception processing (command)
5 ms
Transmission/reception processing (response)
Communications cycle time 1
No. of words transferred × 0.013 ms + 5 ms
Coaxial Max. node no. × 0.01 ms + no. of nodes × 0.075 ms
+ no. of polled units × 0.75 ms + 1.322 ms
Optical Max. node no. × 0.01 ms + no. of nodes × 0.133 ms
+ no. of polled units × 0.75 ms + 1.322 ms
85
CV-mode Command/Response Format Section 6-3
Example
Note 1. When the data link is halted. Refer to
5-10-1 Data Link Communications
Cycle Time
for details on the communications cycle time when the data link is operating.
2. The I/O response time might increase due to noise or restrictions on the number of frames that can be transmitted while the data link is operating.
In this example, the maximum transmission delay is calculated for an instruction receiving 256 words of data in a system with 32 nodes. Network specifics are detailed below:
Max. node number:
Number of nodes:
32
32
Number of polled units: 4
Number of words: 256
Communications: coaxial cable
Data link: halted
Delay cause
LINK Unit servicing
Transmission processing (command)
Reception processing (command)
Communications cycle time ( × 2)
Transmission processing (response)
Reception processing (response)
Maximum delay (ms)
PC scan time
5 ms
5 ms
7.042 ms ( × 2)
8.328 ms
8.328 ms
The maximum transmission delay is thus:
(PC scan time
×
3) + 40.74 ms.
6-3 CV-mode Command/Response Format
This section describes the format of commands that can be received from computers or CV-series PCs and the responses that are returned. C-series SYS-
MAC LINK Units (except models C1000H-SLK21 and C200H-SLK21) can receive CV-mode (FINS) commands, but cannot transmit commands in this command/response format because they are not equipped with a COMMAND instruction (CMND(194) in CV-series PCs).
Unless another format is specifically indicated, all commands and responses are in hexadecimal. Commands that are sent to the PC CPU Unit differ from those that are sent to the SYSMAC LINK Unit.
Command Format Commands have the following format:
2 bytes 540 bytes max.
Response Format
Command code
Data
Responses have the following format:
2 bytes 2 bytes 538 bytes max.
01 01
Command code
Response code
Data
86
CV-mode Command/Response Format
6-3-1 List of CV-mode Commands for PCs
Section 6-3
05
06
07
Command code
01 01
02
02
03
04
02
06
04
Name
MEMORY AREA READ
MEMORY AREA WRITE
MULTIPLE MEMORY AREA READ
PARAMETER AREA WRITE
PROGRAM AREA READ
07 PROGRAM AREA WRITE
01* RUN
02* STOP
01* CONTROLLER DATA READ
21
22
23
01* CONTROLLER STATUS READ
01
02
01
CLOCK READ
(C200H/C200H j only)
CLOCK WRITE
(C200H/C200H j only)
ERROR CLEAR
0F FILE MEMORY INDEX READ
(C1000H/C2000H only)
10 FILE MEMORY BLOCK READ
(C1000H/C2000H only)
11
01
FILE MEMORY BLOCK WRITE
(C1000H/C2000H only)
FORCED SET/RESET
02 FORCED SET/RESET CANCEL
0A FORCED STATUS READ
(C200H/C200 j only)
RUN
Valid
Valid
PC mode
MONITOR PROGRAM
Valid
Valid
Valid
Valid
Valid Valid
Not valid Not valid
Valid Valid
Valid
Valid
Valid
Not valid Not valid
Valid Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Page
93
94
94
95
90
90
91
92
92
95
97
Not valid Valid Valid 97
Valid
Valid
Valid
Valid
Valid Valid
Not valid Valid
Not valid Valid
Not valid Valid
Valid Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
98
98
99
100
101
102
102
Note *These command codes are also used for CV-mode commands sent to SYS-
MAC LINK Units.
6-3-2 List of CV-mode Commands for SYSMAC LINK Units
Command
04 code
01* START DATA LINK
05
06
Name
02* HALT DATA LINK
03 RESET
01* CONTROLLER DATA READ
01* CONTROLLER STATUS READ
08
02
03
NETWORK STATUS READ
DATA LINK STATUS READ
01* INTERNODE ECHO TEST
02 BROADCAST TEST RESULTS READ
03 BROADCAST TEST DATA SEND
Data link mode
Operating
Not valid Valid
Halted
Valid
Valid
Valid
Valid
Not valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Note *These command codes are also used for CV-mode commands addressed to
PCs.
Page
103
103
104
104
105
107
108
109
110
110
87
Memory Area Designations Section 6-4
6-3-3 CV-mode Response Codes
A 2-byte response code is returned with all responses. The first byte contains the main code indicating the general category of the response, and the second byte contains the sub-code giving more specific information. The table below shows the main codes. Refer to
8-1 Troubleshooting
for details on sub-codes.
23
24
25
26
30
10
11
20
21
22
02
03
04
05
00
01
Main code Description
Normal completion
Source node error
Destination node error
Controller error
Not executable
Routing error
Command format error
Parameter error
Read not possible
Write not possible
Not executable in current PC mode
No Unit
Start/stop not possible
Unit error
Command error
Access right error
6-4 Memory Area Designations
The following table gives the addresses that can be used when reading or writing
PC data. The
Data area address
column gives the data area addresses normally used in the PC program. The
Address used in communications
column are the
PC memory addresses used in CV-mode commands and responses. These addresses are combined with the memory area codes to specify PC memory locations. These addresses are not the same as the actual memory addresses of the data.
The
Bytes/item
column specifies the smallest increment of data that can be read or written for that area. The increment will be either words (2 bytes) or bytes (1 byte).
Memory area Data Data area address
IR and SR
Link Relay
Holding Relay
Bit status
Word contents
Bit status
Word contents
Bit status
Word contents
Auxiliary Relay Bit status
00000 to 25515
000 to 255
LR 0000 to LR 6315
LR 00 to LR 63
HR 0000 to HR 9915
HR 00 to HR 99
AR 0000 to AR 2715
Word contents AR 00 to AR 27
Timer/Counter Completion Flag status TC 000 to TC 511
DM Area
EM Area
PV
Word contents
Word contents
TC 000 to TC 511
DM 0000 to DM 9999
EM 0000 to EM 6143
Address used in communications
000000 to 00FF0F
000000 to 00FF00
03E800 to 04270F
03E800 to 042700
042800 to 048B0F
042800 to 048B00
048C00 to 04A70F
048C00 to 04A700
000000 to 01FF00
000000 to 01FF00
000000 to 270F00
000000 to 17FF00
Memory area code
00
80
00
80
00
80
00
80
01
81
82
90 to 98
Note 1. The actual size of memory areas depends on the PC model being used.
Refer to the
PC Operation Manual
for details on memory area ranges.
2
2
2
2
1
2
1
2
1
2
1
Bytes/ item
1
88
Memory Area Designations Section 6-4
2. The memory area codes for the EM Area are as follows: codes 90 through
97 specify banks 0 through 7 and code 98 specifies the current bank.
6-4-1 Word/Bit Addresses
Each word/bit address specifies a specific bit or word. The rightmost two digits of the address specify bit 00 to 15 (or 00 if not required), and leftmost four digits specify the word address.
Specify the bit between 00 and 0F (00 to 15).
Set to 00 to specify word or flag data.
Specify the address of the word or flag.
To obtain the corresponding address of the desired word or bit, add the data area word address (hexadecimal) to the first address of the range of addresses used for that data area in communications. For example, the address for word AR 13 is computed as follows:
First address for AR Area;
048C + 0D (13 in BCD);
048C
0499
The word address for AR 13 would thus be 049900 (the memory area code would specify this as a word) and the address of bit 12 in AR 13 would be
04990C.
6-4-2 Memory Area Code
The memory area code specifies the data area being accessed and whether a bit or word is being accessed, as shown below.
Bit: 07 06 05 04 03 02 01 00
Access size
00: Bit
10: Word
Memory area designator
00: IR, SR, LR, HR, or AR
01: Timer/counter
02: Data Memory (DM)
If the access size indicates a bit is being accessed, one byte of data will be read or written. If the access size indicates a word is being accessed, two bytes of data (one word) will be read or written.
6-4-3 Data Configuration
The configuration of the types of data that can be read or written is shown below.
The number of bytes required for each type of data is also given.
Flag or Bit Status (One Byte) 00: Bit is OFF (0)
01: Bit is ON (1)
Word Contents, PV (Two Bytes)
Bits 0 to 7 (second byte)
Bits 8 to 15 (first byte)
89
CV-mode Commands for PCs Section 6-5
6-5 CV-mode Commands for PCs
6-5-1 MEMORY AREA READ
Reads the contents of the specified number of consecutive memory area words starting from the specified word. All words must be in the same memory area
(here, all memory areas with the same memory area code are considered as one area).
Command Block
01 01 00
Command code
First word
Memory area code
No. of items
Response Block
01 01
Command code
Response code
Data
Parameters Memory area code (command): The data area to read.
First word (command): The address of the first word to read from memory. Set the third byte of the First word to 00.
No. of items (command): The number of items to be read. The number of items must be 0000 to 0100 (0 to 256 decimal). A normal completion response will be returned even if the number of items is set to 00.
Data (response): The data from the specified words is returned in sequence starting from the first word. Timer/counter PVs are returned in BCD. The total number of bytes is calculated as follows:
Bytes/item x No. of items
Memory Areas
The following data can be read (refer to
6-4 Memory Area Designations
for PC word/bit address designations):
Memory area Data
IR, SR, LR, HR, and AR
Timer/Counter
DM
EM
Word contents
Completion Flag status
PV
Word contents
Word contents
Memory area code
80
01
81
82
90 to 98
2
2
1
2
Bytes/ item
2
6-5-2 MEMORY AREA WRITE
Writes data to the specified number of consecutive words starting from the specified word. All words must be in the same memory area (here, all memory areas with the the same memory area code are considered as one area).
Note 1. The MEMORY AREA WRITE command can be executed regardless of the
PC’s operating mode. It is the user’s responsibility to program steps to prohibit this command from being executed when the PC is in RUN mode if such protection is necessary. Execute the CONTROLLER STATUS READ command (refer to
6-5-10 CONTROLLER STATUS READ
) to read the PC’s mode.
90
CV-mode Commands for PCs Section 6-5
2. When data is written to the Timer/Counter PV Area, the Completion Flags will be turned OFF (0).
Command Block
01 02 00
Command code
First word
Memory area code
No. of items Data
Response Block
01 02
Command code
Response code
Parameters Memory area code (command): The data area to write.
First word (command): The first word to write. Set the third byte of the first word to 00.
No. of items (command): The number of items to be written. The number of items must be 0000 to 0100 (0 to 256 decimal). A normal completion response will be returned even if the number of items is set to 00.
Data (command): The data to be written. Timer/counter PVs are returned in
BCD. The total number of bytes is calculated as follows:
Bytes/item x No. of items
The following data can be written (refer
6-4 Memory Area Designations
for the word/bit address designations):
Memory area Data
IR, SR, LR, HR, and AR
Timer/Counter
DM
EM
Word contents
PV
Word contents
Word contents
Memory area code
80
81
82
90 to 98
2
2
2
Bytes/ item
2
6-5-3 MULTIPLE MEMORY AREA READ
Reads the contents of the specified non-consecutive memory area bytes or words. Bytes or words can be read from up to 128 locations.
Note 1. If there is an error in even one memory area code or address, no data will be read.
2. If EM is specified in the memory area code, the maximum number of locations from which bytes or words can be read will be 100.
Command Block
Up to 128 addresses
01 04
Command code
Address
Memory area code
Address
Memory area code
91
CV-mode Commands for PCs
Response Block
01 04
Section 6-5
Command code
Response code
Data
Memory area code
Data
Memory area code
Parameters Memory area code (command): The data area to read.
Address (command): The addresses of the words/bits/flags to read.
Data (response): The response returns the memory area code(s) paired with the data from the specified memory area(s). There will be either one or two bytes of data per memory area code depending on the access size specified in the memory area code. Refer to
6-4-2 Memory Area Code
for details on access size.
Memory Areas
The following data can be read (refer to
6-4 Memory Area Designations
for memory area designations):
Memory area Data
IR, SR, LR, HR, and AR
Timer/Counter
DM
EM
Bit status
Word contents
Completion Flag status
PV
Word contents
Word contents
Memory area code
00
80
01
81
82
90 to 98
2
2
1
2
1
2
Bytes/ item
6-5-4 PARAMETER AREA WRITE
Writes data to the parameter area to designate the DM (data memory) size.
Note This command is available only on the SYSMAC C1000HF.
Command Block
02 02 80 10 00 00 80 01
Command code
Parameter code
First word No. of items
Data
Response Block
02 02
Command code
Response code
Parameters Parameter code (command): 8010 (designate to change the DM size)
First word (command): 0000
No. of items (command): 8001
Data (command): Input 00 to designate a DM size of 4,095 words. If 00 is not input, a DM size of 10,000 words will be designated.
6-5-5 PROGRAM AREA READ
Reads the contents of the specified number of consecutive program area words starting from the specified word. The data is read in machine language (object code level). A maximum of 512 bytes can be read with each command. To read larger amounts of data, use multiple commands and specify the beginning word and number of words for each.
92
CV-mode Commands for PCs
Command Block
03 06 00 00
Section 6-5
Command code
Program no.
First word No. of bytes
Response Block
03 06 00 00
Command code
Response code
Program no.
Parameters
First word No. of bytes
Data (512 bytes max.)
Program no. (command and response): Set to 0000.
First word (command and response): The program area begins at 00000000.
The first word must be an even number and will be returned as is in the response.
No. of bytes (command and response): The number of bytes in an even number up to 0100 (512 decimal). Bit 15 will be ON (1) in the response block when the last word of data from the program area is in the data returned.
In the response, the no. of bytes is the actual number of bytes read.
Bit 15 OFF (0): Without last word data
Bit 15 ON (1): With last word data
Bits 0 to 14: No. of bytes read
Bits 0 to 7 (second byte)
Bits 8 to 15 (first byte)
If the no. of bytes specified in the command exceeds the number of bytes remaining in the program area, data will be read up to the last word in the program area and an
11 04
or
11 0B
parameter error response code will be returned.
Data (response): The data in the specified program area will be returned in sequence starting from the beginning word.
6-5-6 PROGRAM AREA WRITE
Writes data to the specified number of consecutive program area words starting from the specified word. The data is written in machine language (object code level). A maximum of 512 bytes can be written with each command. To write larger amounts of data, use multiple commands and specify the beginning word and number of words for each.
Note The PC will generate an index when bit 15 of the no. of bytes is ON, so bit 15 must be ON when data is written through the last word in the program area. If the no. of bytes is set to 8000, the PC will just generate an index.
Command Block
03 07 00 00
Data (512 bytes max.) Command code
Program no.
Response Block
First word No. of bytes
03 07 00 00
Command code
Response code
Program no.
First word No. of bytes
93
CV-mode Commands for PCs
Parameters
Section 6-5
Program no. (command and response): Set to 0000.
First word (command and response): The program area begins at 00000000.
The first word must be an even number and will be returned as is in the response.
No. of bytes (command and response): The number of bytes in an even number up to 0200 (512 decimal). Bit 15 must be ON (1) when data is written to the last word in the program area.
In the response, the no. of bytes is the actual number of bytes read.
Bit 15 OFF (0): Without last word data
Bit 15 ON (1): With last word data
Bits 0 to 14: No. of bytes written
Bits 0 to 7 (second byte)
Bits 8 to 15 (first byte)
Data (command): The data to be written.
6-5-7 RUN
Changes the PC to MONITOR or RUN mode, enabling the PC to execute its program.
Command Block
04 01
Command code
Program no.
Mode
Response Block
Parameters
04 01
Command code
Response code
Program no. (command): Set to 0000.
Mode (command): As follows:
0002: MONITOR mode
0004: RUN mode
Note If the mode is not specified, the PC will go to MONITOR mode.
6-5-8 STOP
Changes the PC to PROGRAM mode, stopping program execution.
Command Block
04 02
Command code
Response Block
04 02
Command code
Response code
94
CV-mode Commands for PCs
6-5-9 CONTROLLER DATA READ
Reads the following data:
•
PC model and version
•
Area data
•
PC status
Command Block
05 01
Section 6-5
Command code
Response Block
05 01 20 bytes 20 bytes 16 bytes 10 bytes 65 bytes
Command code
Response code
PC model
Parameters
PC version All zeroes Area data All zeroes
PC status
PC model and version (response):
Both are read in ASCII codes (20 bytes (i.e. 20 ASCII characters) max. each). If the model or version requires less than 20 characters, the remaining bytes will be filled with spaces (ASCII code 20).
For the C1000H and C2000H, the version is returned for the MPU1 first followed by the version for the MPU2. If a version does not required 20 characters, the remaining bytes will be filled with spaces (ASCII code 20) for each.
All zeroes (response): These bytes contain zeroes.
Area data (response): As follows:
1st byte 10th byte
00 00 00
Program area size
No. of DM words
EM bank number
File memory size
Kind of file memory
Item
Program area size
No. of DM words
EM bank number
Kind of file memory
File memory size
Meaning
The size of PC Setup and program area
Total words in the DM area
Extended Data Memory (EM) Area bank number
00: No file memory
01: SPRAM
04: First half RAM, second half ROM
0000: 0 (no file memory)
0001: 1000
0002: 2000
Unit
K words (1K words = 1,024 words)
Words
Bank
---
Blocks
PC status (response): The value of the byte returned indicates whether or not a
Peripheral Device is connected.
00: No Peripheral Device connected.
80: Peripheral Device connected.
6-5-10 CONTROLLER STATUS READ
Reads the status of the PC.
95
CV-mode Commands for PCs
Command Block
06 01
Section 6-5
Command code
Response Block
06 01 16 bytes
Parameters
Command code
Response code
Status Mode
Fatal error data
Non-fatal error data
FAL no.
Error message
Status (response): The operating status of the PC as follows:
00: Stop (program not being executed)
01: Run (program being executed)
80: CPU Unit on standby (the start switch is OFF or the CPU Unit is waiting for a Slave Rack to turn ON).
Mode (response): One of the following PC modes:
00: PROGRAM
02: MONITOR
04: RUN
Fatal error data (response): The information contained in the fatal error data is shown below. Refer to the PC’s
Operation Manual
for details on fatal errors.
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 0 0 0 0
1: FALS error
1: I/O setting error
1: I/O point overflow
1: I/O bus error
1: Memory error
Non-fatal error data (response): The information contained in the non-fatal error data is shown below. Refer to the PC’s
Operation Manual
for details on non-fatal errors.
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 0 0
1: PC Link error
1: Host Link error
1: Battery error
1: Remote I/O error
1: Special I/O Unit error
1: I/O verification error
1: FAL error
FAL no. (response): The second byte contains the FAL or FALS number of the highest priority error that has occurred in BCD. The first byte contains 00. The
FAL no. range is therefore 00 to 99.
If neither an FAL nor an FALS error has occurred, the FAL no. will be 0000.
Error message (response): The error message of the present FAL number.
The error message will be up to 16 ASCII characters. If there is no error message, the response will be shortened.
96
CV-mode Commands for PCs Section 6-5
6-5-11 CLOCK READ
Reads the clock. This command can be used with the C200H, C200HS,
C200HX, C200HG, and C200HE PCs only.
Command Block
07 01
Command code
Response Block
07 01
Command code
Response code Year Month Date Hour Minute Second Day
Parameters Year, month, date, hour, minute, second, day (response): Each value is expressed in BCD.
Year: The rightmost two digits of the year.
Hour: 00 to 23.
Day: As follows:
Value
Day
00
Sun
01
Mon
02
Tues
03
Wed
04
Thur Fri
05 06
Sat
6-5-12 CLOCK WRITE
Sets the clock. This command can be used with the C200H, C200HS, C200HX,
C200HG, and C200HE PCs only.
Command Block
07 02
Command code Year Month Date Hour Minute Second Day
Response Block
Parameters
07 02
Command code
Response code
Year, month, date, hour, minute, second, day (command): Each specified value is expressed in BCD.
Year: The rightmost two digits of the year.
Hour: Specify 00 to 23.
Day: As follows:
Value
Day
00
Sun
01
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CV-mode Commands for PCs
6-5-13 ERROR CLEAR
Clears errors from the PC.
Command Block
21 01 FF FF
Section 6-5
Response Block
21 01
Command code
Response code
Parameters Error reset (command): The code must be FFFF.
6-5-14 FILE MEMORY INDEX READ
Reads out the indices of a specified number of blocks stored in file memory. This command can be used with the C1000H and C2000H only.
Command Block
22 0F
Command code
Beginning block no.
No. of blocks
Response Block
Command code
Error reset
Index for first block
Index for last block
22 0F
Parameters
Command code
Response code
Remaining no. of blocks
Total no.
of blocks
Kind of file memory
Kind of data
No. of comments
Kind of data
No. of comments
Beginning block no. (command): The first block to be read. The beginning block no. must be between 0000 and 03E7 (0 to 999 decimal) for 1000 block file memory, or 0000 and 07CF (0 to 1999 decimal) for 2000 block file memory.
No. of blocks (command): The number of blocks to be read. The no. of blocks must be between 01 and 80 (0 to 128 decimal).
Remaining no. of blocks (response): The number of blocks remaining after the read. The remaining no. of blocks will be between 0000 and 07CF (0 to 1999 decimal).
Total no. of blocks (response): The number of blocks in the file memory. The total no. of blocks will be between 0000 (0), 03E8 (1000), or 07D0 (2000).
Kind of file memory (response): The kind of file memory installed, as follows:
00: All RAM
01: First half RAM, second half ROM
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CV-mode Commands for PCs Section 6-5
Kind of data (response): The kind of data in this block, as follows:
Bit 7 6 5 4 3 2 1 0
0 0 0
Kind of data (see table below)
1: Protected
1: Block contains END(01)
(program data only)
Kind of data
Bits 0 to 2 indicate the kind of data, as shown in the following table.
0
0
0
0
Bit status
2 1 0
0
0
1
1
0
1
0
1
None
Kind of data
I/O data
Program
Comments
No. of comments (response): If the block contains comments data, this byte indicates the number of comments.
6-5-15 FILE MEMORY BLOCK READ
Reads the contents of the indicated block of file memory. This command can be used with the C1000H and C2000H only.
Command Block
22 10
Command code
Block no.
Response Block
Parameters
22 10 256 bytes
Command code
Response code
Kind of data
No. of comments
Block data
Block no. (command): The block number of the block to be read. The block no.
must be between 0000 and 03E7 (0 to 999 decimal) for 1000 block file memory, or 0000 and 07CF (0 to 1999 decimal) for 2000 block file memory.
Kind of data (response): The kind of data in the block, as follows:
Bit 7 6 5 4 3 2 1 0
0 0 0
Kind of data (see table below)
1: Protected
1: Block contains END(01)
(program only)
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CV-mode Commands for PCs
Kind of data
Bits 0 to 2 indicate the kind of data, as shown in the following table.
0
0
0
0
Bit status
2 1 0
0
0
1
1
0
1
0
1
None
Kind of data
I/O data
Program
Comments
No. of comments (response): If the block contains comments data, this byte indicates the number of comments.
Block data (response): The 256 bytes of data from the indicated block.
6-5-16 FILE MEMORY BLOCK WRITE
Writes the 256 bytes of data in the command to the indicated block of file memory. This command can be used with the C1000H and C2000H only.
Command Block
22 11 256 bytes
Section 6-5
Command code
Kind of data
No. of comments
Block no.
Data
Response Block
Parameters
22 11
Command code
Response code
Kind of data (command): Indicate the kind of data in the block, as follows:
Bit 7 6 5 4 3 2 1 0
0 0 0
Kind of data (see table below)
1: Protected
1: Block contains END(01)
(program only)*
Kind of data
Bits 0 to 2 indicate the kind of data, as shown in the following table.
0
0
0
Bit status
2 1 0
0
1
1
1
0
1
Kind of data
I/O data
Program
Comments
Note *Turn bit 7 ON when the block contains the END(01) instruction or the block is the last.
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CV-mode Commands for PCs Section 6-5
No. of comments (command): If the block contains comments data, indicate the number of comments in this byte.
Block no. (command): The block number of the block to which data will be written. The block no. must be between 0000 and 03E7 (0 to 999 decimal) for 1000 block file memory, or 0000 and 07CF (0 to 1999 decimal) for 2000 block file memory.
Data (command): The 256 bytes of data that will be written to the indicated block.
6-5-17 FORCED SET/RESET
Force-sets (ON) or force-resets (OFF) bits/flags or releases forced status. Bits/ flags that are forced ON or OFF will remain ON or OFF and cannot be written to until the forced status is released, e.g., by using this command.
Command Block
23 01
Command code
No. of bits/flags
Set/Reset specification
Bit/flag
Memory area code
Forced set/reset data
Response Block
23 01
Parameters
Set/reset specification
Bit/flag
Memory area code
Forced set/reset data
Command code
Response code
No. of bits/flags (command): The number of bits/flags to be forced set/reset or released.
Set/Reset specification (command): The action to be taken for each bit/flag
Value
0000
0001
8000
8001
FFFF
Name
Force-reset (OFF)
Force-set (ON)
Forced status released and bit turned OFF (0)
Forced status released and bit turned ON (1)
Forced status released
Note 1. In the C1000H and C2000H, only the
Force-reset (0000)
and
Force-set
(0001)
actions can be specified. Furthermore, only one bit can be force set/ reset at a time. If force set/reset data for more than one bit is included in the command, only the last bit will be force set/reset. The forced status of the other bits/flags in the command will be released.
2. In the C200H/C200H j , two or more bits can be force set/reset. (Forced status will be maintained unless a forced status release action is performed.)
3. The
Forced status released and bit turned OFF (8000)
and
Forced status released and bit turned ON (8001)
actions cannot be performed on timer/ counter Completion Flags. If these actions are specified, they revert to the
Force-reset (0000)
and
Force-set (0001)
actions, respectively.
Memory area code (command): The memory area of the bit or flag to be controlled.
Bit/Flag (command): The bit or flag to be controlled.
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CV-mode Commands for PCs Section 6-5
Memory Areas
The bits (flags) in the following memory areas can be forced set/reset or released (refer to
6-4 Memory Area Designations
for memory area designations):
Memory area Data
IR, SR, LR, HR, and AR
Timer/Counter
Bit status
Completion Flag status
Memory area code
00
01
1
1
Bytes/ item
Only the number of bits/flags indicated in
No. of bits/flags
will be forced set/reset or released.
6-5-18 FORCED SET/RESET CANCEL
Cancels all bits (flags) that have been forced ON or forced OFF.
Command Block
23 02
Command code
Response Block
23 02
Command code
Response code
6-5-19 FORCED STATUS READ
Reads the forced status of a specified number of consecutive memory area words or Timer/Counter Completion Flags starting from the specified word or flag. All words must be in the same memory area (here, all memory areas with the same memory area code are considered as one area). This command can be used with the C200H, C200HS, C200HX, C200HG, and C200HE PCs only.
Command Block
23 0A
Command code
First word/flag
Memory area code
No. of items
Response Block
23 0A
Parameters
Command code
Response code
Memory area code
First word/flag
No. of items Data
Memory area code (command and response): The data area to read forced status.
First word/flag (command and response): The address of the first word or flag whose forced status will be read.
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CV-mode Commands for SYSMAC LINK Units Section 6-6
No. of items (command and response): The number of items to be read. The number of items must be 0001 to 0040 (1 to 64 decimal).The forced status of up to 64 consecutive words or 512 flags can be read.
Data (response): The forced status data from the specified words or flags is returned in sequence starting from the first word/flag. The total number of bytes is calculated as follows:
Bytes/item x No. of items
When a bit is ON in the forced status data returned in the response, the status of the corresponding bit or flag has been forced (either force-set or force-reset).
When a bit is OFF in the forced status data, the status of the corresponding bit or flag has not been forced.
Memory Areas
The following data can be read (refer to
6-4 Memory Area Designations
for PC word/bit address designations):
Memory area Forced status data
IR, SR, LR, HR, and AR
Timer/Counter
Word
Completion Flag
Memory area code
80
01
2
1
Bytes/ item
6-6 CV-mode Commands for SYSMAC LINK Units
6-6-1 DATA LINK START
Activates data links in the SYSMAC LINK Network.
This command will be completed normally when link words are allocated automatically or via data link tables only.
Command Block
04 01
Command code
Response Block
04 01
Command code
Response code
6-6-2 DATA LINK HALT
Stops data links in the SYSMAC LINK Network.
This command will be completed normally when the data link is in operation. If the data link is not in operation, an error will occur.
Command Block
04 02
Command code
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CV-mode Commands for SYSMAC LINK Units
Response Block
04 02
Command code
Response code
Section 6-6
6-6-3 RESET
Resets the SYSMAC LINK Unit.
No response is returned when this command is executed.
Command Block
04 03
Command code
6-6-4 CONTROLLER DATA READ
Reads the following data from the SYSMAC LINK Unit:
• Model and version
• Type of cable (coaxial or optical fiber)
•
RAM size
•
Node number
Command Block
05 01
Command code
Response Block
05 01
Command code
Response code
20 bytes
Model
20 bytes
Version Node number
Cable type, RAM size
Parameters Model and version (response):
Both the SYSMAC LINK Unit’s model and version are read in ASCII codes (20 bytes (i.e., 20 ASCII characters) max. each). If the model or version requires fewer than 20 characters, the remaining bytes will be filled with spaces (ASCII code 20).
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CV-mode Commands for SYSMAC LINK Units Section 6-6
Cable type and RAM size (response): The type of cable being used and the size of the RAM buffer in the controller are provided as follows:
Bit 7 6 5 4 3 2 1 0
0 0 0 0
Cable type
0: Coaxial
1: Optical fiber
RAM size (see table below)
0
0
1
Bit status
2 1 0
1 0
RAM size
4K bytes (C200HW-SLK13/23)
1 1 8K bytes (C1000H-SLK11/SLK21-V1)
0 0 16K bytes (C200HW-SLK14/24)
Node number (response): The value of the byte returned indicates the Unit’s node number in 2-digit hexadecimal. The node number range is 01 to 3E (1 to 62 decimal).
6-6-5 CONTROLLER STATUS READ
Reads the status of the SYSMAC LINK Unit.
Command Block
06 01
Command code
Response Block
Parameters
06 01 5 bytes
Command code
Response code
Data link status
Current status
00 8 bytes 8 bytes
Event occurrences
Member node list
Data link status (response): The operating status of the data link as follows:
00: Halted
01: Active
Current status (response): These five bytes provide information on the current status of the Unit.
First byte:
Bit 7 6 5 4 3 2 1 0
0 0 0 0 0 0 0
Test operating status:
0: Stopped
1: Active
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CV-mode Commands for SYSMAC LINK Units
Second byte:
Bit 7 6 5 4 3 2 1 0
0 0 0 0 0 0 0
Section 6-6
Power supply status:
0: No power
1: Power supplied
Third byte:
Bit 7 6 5 4 3 2 1 0
0 0 0 0 0
1: Node number range error
1: Node number duplication error
1: Network parameter mismatch error
A network parameter mismatch error occurs when the parameters set in the
Unit at initialization do not match those of the currently operating network.
The network parameters will be reset automatically.
Fourth byte:
Bit 7 6 5 4 3 2 1 0
0 0 0
1: Communications controller watchdog timer error
1: Communications controller memory error
1: Communications controller chip bad
1: Communications controller transmitter bad
1: Local node internode echo test error
Fifth byte:
Bit 7 6 5 4 3 2 1 0
0 0 0 0
1: Network parameter error
1: Data link table error
1: System setup error
1: EEPROM error
Event occurrences (response): These eight bytes indicate how many times the following events have occurred. Each number is 2-digit hexadecimal, so 00 to FF (0 to 255 decimal) occurrences can be recorded. If an event occurs more than 255 times, the number will remain at 255.
First byte: CRC
Second byte: Token
Third byte: Token
Fourth byte: Token passing time outs
Fifth byte: Polling time outs
Sixth byte: Polling unit changes
Seventh byte: Member node changes
Eighth byte: Communication controller data transfer stops
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CV-mode Commands for SYSMAC LINK Units Section 6-6
Member node list (response): These eight bytes indicate which node numbers are members of the network. When a bit in the following matrix is ON, the corresponding node is in the network. Bits 6 and 7 of the eighth byte are always OFF.
Bit
First byte
7 6 5 4 3 2 1 0
8 7 6 5 4 3 2 1
Second byte 16 15 14 13 12 11 10 9
Third byte 24 23 22 21 20 19 18 17
Fourth byte 32 31 30 29 28 27 26 25
Fifth byte
40 39 38 37 36 35 34 33
Sixth byte 48 48 46 45 44 43 42 41
Seventh byte
56 55 54 53 52 51 50 49
Eighth byte 62 61 60 59 58 57
6-6-6 NETWORK STATUS READ
Reads the status of the SYSMAC LINK Network.
Command Block
06 02
Command code
Response Block
06 02 31 bytes 8 bytes 62 bytes
Parameters
Command code
Response code
Network member data
Communications cycle time
Current polling unit node number
Cyclic operation
Cyclic continuation errors
Cyclic error log
Cyclic transmission status
Network member data (response): Four bits are allocated to each node number to provide information on the status of nodes in the network as shown below.
The function of each of the 4 bits is shown in the diagram following the table.
Byte 1
Byte 2
Byte 3
Byte Bits 4 to 7
Node number 2
Node number 4
Node number 6
Bits 0 to 3
Node number 1
Node number 3
Node number 5
Byte 31 Node number 62 Node number 61
Bit 3/7 2/6 1/5 0/4
0
1: In network (0: Not in network)
1: Exited because of an error.* (0: Normal exit)
1: Unit does not respond to polling.
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CV-mode Commands for SYSMAC LINK Units Section 6-6
Note *Bit 1/5 is used to indicate why the node is not in the network when bit 0/4 is OFF.
Communications cycle time (response): The actual communications cycle time is provided here in 4-digit hexadecimal in increments of 100 m s.
Current polling unit node number (response): The node number of the unit that currently is the polling unit.
Cyclic operation (response): Indicates the current status of cyclic operation, as follows:
00: Stopped
01: Active
Cyclic transmission status (response): Indicates the current status of cyclic transmission, as follows:
00: No transmission
01: Transmission
Cyclic continuation errors (response): These eight bytes indicate nodes in which non-fatal errors occurred in cyclic transmission. When a bit in the following matrix is ON, a non-fatal error occurred in the corresponding node. Bit 0 of the first byte and bit 7 of the eighth byte are always OFF.
Bit
First byte
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 -
Second byte 15 14 13 12 11 10 9 8
Third byte 23 22 21 20 19 18 17 16
Fourth byte
31 30 29 28 27 26 25 24
Fifth byte 39 38 37 36 35 34 33 32
Sixth byte
47 46 45 44 43 42 41 40
Seventh byte 55 54 53 52 51 50 49 48
Eighth byte
62 61 60 59 58 57 56
Cyclic error log (response): One of these 62 bytes is allocated to each node to indicate how many cyclic errors occurred since start-up. The first byte is allocated to node number 1, the second to node number 2, etc. Each number is
2-digit hexadecimal, so 00 to FF (0 to 255 decimal) errors can be recorded for each node. If more than 255 errors occur, the number will remain at 255.
6-6-7 DATA LINK STATUS READ
Reads the status of the data link.
The various data link status information described here will not be updated while the data link is halted.
Command Block
06 03
Command code
Response Block
06 03 31 bytes
Command code
Response code
Status flags
Present refresh time
Max.
refresh time
Data link status
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CV-mode Commands for SYSMAC LINK Units
Parameters
Section 6-6
Status flags (response): This byte contains flags providing information on overall data link status, as follows:
Bit 7 6 5 4 3 2 1 0
0 0 0 0
1: Data link table error
1: No data link table
1: Automatic link word allocation
(0: Allocation via data link tables)
1: Data link is active.
(0: Data link is halted.)
Present and Max. refresh time (response): The present and maximum data link refresh times in 4-digit hexadecimal in increments of 1 ms. The range is 0005 to 00FF (5 to 255 ms, in decimal).
Data link status (response): Four bits are allocated to each node number to provide information on the status of the data links, as shown below. The function of each of the 4 bits is shown in the diagram following the table.
Byte 1
Byte 2
Byte 3
Byte Bits 4 to 7
Node number 2
Node number 4
Node number 6
Bits 0 to 3
Node number 1
Node number 3
Node number 5
Byte 31 Node number 62 Node number 61
Bit 3/7 2/6 1/5 0/4
6-6-8 INTERNODE ECHO TEST
Performs an internode echo test with the indicated node.
Command Block
08 01 512 bytes max.
Command code
Test data
1: PC is in RUN or MONITOR mode
1: PC is stopped because a fatal error has occurred.
1: Not in network or communication error has occurred.
1: Data link is active.
Response Block
Parameters
08 01 512 bytes max.
Command code
Response code
Test data
Test data (command and response): Up to 512 byte of test data can be included in the command. This data is transmitted to the indicated node and returned unchanged if communications are normal. If the data returned in the
109
CV-mode Commands for SYSMAC LINK Units Section 6-6 response differs from that transmitted in the command, an error occurred in the internode echo test.
6-6-9 BROADCAST TEST RESULTS READ
Reads the results (number of receptions for each node) of the broadcast tests carried out using the BROADCAST TEST DATA SEND command. Refer to
6-6-10 BROADCAST TEST DATA SEND
for details on that command.
Command Block
08 02
Command code
Response Block
08 02
Command code
Response code
Number of receptions
Parameters Number of receptions (response): The number of times that the BROAD-
CAST TEST DATA SEND command has been executed since the last BROAD-
CAST TEST RESULTS READ command was executed.
When this command is executed, the number of receptions data stored in the destination nodes is cleared. If the number of receptions does not equal the number of times that the BROADCAST TEST DATA SEND command has been executed since the last BROADCAST TEST RESULTS READ command was executed, an error has occurred.
6-6-10 BROADCAST TEST DATA SEND
Sends the test data in the command to all nodes in the specified network. No response will be returned when this command is executed, but reception of the test data can be verified by executing the BROADCAST TEST RESULTS READ command. Refer to
6-6-9 BROADCAST TEST RESULTS READ
for details.
Command Block
08 03 512 bytes max.
Command code
Test data
Note Make the following control data settings when executing this command: a) Destination node number: FF (broadcast transmission) b) Destination node unit number: FE (to SYSMAC LINK Units) c) Response Flag (bit 13 of C+1): ON (response not returned)
110
SECTION 7
Special Services
Information on remote programming and monitoring and RAS functions is provided in this section.
7-1 Remote Programming and Monitoring
7-2 RAS Functions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2-1 Internode Echo Test
7-2-2 Broadcast Test
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2-3 Polling Unit Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2-4 Failed Node Bypass (Optical Networks Only) . . . . . . . . . . . . . . . . . . . . . . . . . . .
112
113
113
115
115
116
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Remote Programming and Monitoring Section 7-1
7-1 Remote Programming and Monitoring
Any C200HX, C200HG, C200HE, C200HS, C200H, C1000H, or C2000H
(simplex) PC on a SYSMAC LINK Network can be remotely programmed and monitored using a SSS/CVSS connected to any other PC on the network.
C2000H Duplex PCs cannot be remotely programmed and monitored through the SYSMAC LINK Network. Remote programming or monitoring of the CVM1 and CV-series PCs is not possible.
Peripheral Device
Connection
The SSS is connected to C-series PCs via a C500-IP004 or C200H-IP006/007
Peripheral Interface Unit and can provide remote programming and monitoring capability for PCs in the same Network. In addition, the CVSS (CV Support Software, see note following diagram) running on an IBM-PC/AT or compatible can be used. The abbreviations in the diagram below indicate the following OMRON products:
SLK: SYSMAC LINK Unit
NSB: SYSMAC LINK Network Service Board
IP: Peripheral Interface Unit or Conversion Cable
PC
SLK
PC
SLK
PC
SLK
IP
SLK
PC
NSB
Computer
SSS
Remote Communications
Limits
Note When the C- and CV-series PCs are in the same system configuration, CVSS on an IBM-PC/AT or compatible can be used.
The SSS can provide remote programming and monitoring capability for all PCs in the same Network. If the SSS is connected to a PC that is part of two Networks, i.e., one that has two SYSMAC LINK Units mounted to it, then remote programming and monitoring are possible for any PC in either Network.
112
RAS Functions Section 7-2
The SSS can only access PCs within the Network of which the PC it is connected to is a part. In the following diagram SSS A is attached to PC 1 and can remotely program and monitor PCs 1, 2, 3, 4, 5, 6, 7, and 8. SSS B is attached to PC 2 and can program and monitor only PCs 1, 2, 3, and 4.
PC (1)
SLK
SSS
A
PC (2)
SLK
PC (3)
SLK
SLK
PC (5)
SLK
PC (6)
SLK
PC (4)
SLK
SLK
PC (7)
SSS
B
7-2 RAS Functions
RAS is an acronym for Reliability, Availability, and Serviceability, and the RAS functions are intended to promote these three elements in the SYSMAC LINK
Network.
7-2-1 Internode Echo Test
The internode echo test involves transmitting data to a specific node and requesting the node to send back the data that was sent. The results of the test are stored in the IR area. The internode echo test can also be executed with a CV-mode command. Refer to
6-6-8 INTERNODE ECHO TEST
for details.
Internode Test Functions Internode Testing functions in the following manner:
1, 2, 3...
1. Test data is transmitted to a specified node.
2. The specified node returns the test data unaltered.
3. The original test data is compared to the data which was echoed back. If there is any discrepancy, an error code is generated.
Data Preparations Using the Programming Console, set the node number of the destination PC in
IR 23200 to IR 23207 for the C1000H/C2000H, IR 04000 to IR 04007 for the
C200H, and IR 50000 to IR 50007 for the C200HS, C200HX, C200HG, or
C200HE.
The node number must be between 1 and 62 ($01 to $3E) and can be changed during the test. Do not set the node number to the local node’s node number or $00 (broadcast mode).
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RAS Functions Section 7-2
Internode Test Execution The test is initiated by moving the node number of the destination PC to IR 232
(IR 040 in the C200H and IR 500 in the C200HS, C200HX, C200HG, or
C200HE) and then turning ON pin 1 of DIP switch 1. The overall procedure is listed below.
The PC that is initiating the test must be in PROGRAM mode. The PC receiving the transmission may be set in any mode.
The overall procedure for the test is as follows:
1, 2, 3...
1. Set the PC to PROGRAM mode.
2. Input the node number of the destination PC.
3. Turn ON pin 1 of DIP switch 1.
4. Check test results via indicators and/or returned data.
5. To test another node, change the destination node number and check results for the new node.
6. Turn OFF pin 1 of DIP switch 1.
Test Results Test results are indicated both on the Unit indicators and stored in the IR area.
The TS indicator displays the results of the test for each node.
Lit: . . . . . . . . . .
Flashing: . . . . .
Testing in progress
Testing error
Not lit: . . . . . . . Test halted
The table below shows the results of the tests which will be stored in the IR area of the PC which initiated the test.
C200H j
IR 500
IR 501
IR 502
IR 503
IR 504
IR 505
C200H
IR 040
IR 041
IR 042
IR 043
IR 044
IR 045
C1000H/
C2000H
IR 232
IR 233
IR 234
IR 235
IR 236
IR 237
Bits 00 to 07 Bits 08 to 15
Destination node number * (07) Set to zero.
Number of test cycles
Number of errors
Number of times not able to transmit Test status
Number of no responses Number of busy responses
Number of no-token time-outs Number of data mismatches
* Bit 07 will be turned ON when the destination node number designation is incorrect.
Number of test cycles is the total number of data packets sent and echoes received.
Number of errors is the total number of errors.
Test status is as follows.
15 14 13 12 11 10 09 08
Normal completion (0), Error (1)
Destination node not part of Network (1)
Token time-out (1)
Data mismatch (1)
Local node not part of Network* (1)
No response (1)
Destination node busy (1)
Not able to transmit (1)
Note *This error will occur when the communications chip is faulty, there is a node number setting error, or node number duplication error.
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RAS Functions Section 7-2
Number of times not able to transmit is the number of times transmission was impossible because the destination node or the local node were not part of the Network, or node did not have the right to transmit.
Number of busy responses is number of times the node was unable to transmit because destination node was busy.
Number of no responses is the number of times the destination node did not respond.
Number of data conflicts is number of times test data did not match data echoed back.
Number of token time-outs is the number of times transmission was impossible because the node did not receive the token giving it polling unit status.
Note 1. Responses are monitored for two seconds.
2. When the destination node number is changed in IR 232 (IR 040 in the
C200H and IR 500 in the C200HX, C200HG, C200HE, or C200HS), the test results in IR 233 to IR 237 (IR 041 to IR 045 in the C200H and IR 505 in the
C200HX, C200HG, C200HE, or C200HS) will be initialized.
7-2-2 Broadcast Test
The broadcast test transmits data to all nodes in the network simultaneously and then reads the results (number of receptions for each node) of the test. The broadcast test can also be executed with CV-mode commands. Refer to
6-6-10
BROADCAST TEST DATA SEND
for details.
Broadcast Test Execution The test can be executed with a SSS/CVSS. Refer to the Peripheral Device’s
Operation Manual
for details.
The test proceeds as follows:
1, 2, 3...
1. The test data is transmitted to all nodes the specified number of times.
2. The number of receptions at each node is read out.
3. The test results (the number of transmissions and successful receptions) are displayed.
7-2-3 Polling Unit Backup
SYSMAC LINK Units provide an automatic backup function. In case of a failure or error in the SYSMAC LINK Unit which is currently the polling unit, the
Network is automatically restructured. The lowest numbered functional node within the Network becomes the new polling unit, and the Network continues to function.
While the Network is restructuring itself, all data transmission stops. If the data link was operational when the polling unit failed, data is saved in the state it was just prior to the failure and data link operations will continue.
The time required to restructure the Network in the event of an error or failure may be calculated using the following formula:
Restructuring time =
(new polling unit node number + 1) x 20 ms + highest node number x 1 ms
115
RAS Functions Section 7-2
7-2-4 Failed Node Bypass (Optical Networks Only)
SYSMAC LINK Networks using optical fiber cable and equipped with a back-up power supply and Power Supply Units have an automatic bypass function. If a failure or error occurs in a node of the network, that node will be bypassed, and the rest of the network will continue functioning.
In the example shown below, node 3 fails, but communications continue by bypassing node 3. The abbreviations in the diagram below indicate the following OMRON products:
SLK: SYSMAC LINK Unit (optical type)
APS: Auxiliary Power Supply Unit
Optical transmission path
SLK
(node #1)
APS
PC
SLK
(node #2)
APS
PC
SLK
(node #3)
APS
PC
Node #3 fails
SLK
(node #4)
APS
PC
Backup power supply
The following table shows which Auxiliary Power Supply Units can be used with the SYSMAC LINK Units.
SYSMAC LINK Unit
C1000H-SLK11
C200HW-SLK13/14
Auxiliary Power Supply Unit
C1000H-APS01
C200H-APS03
!
Caution In an optical network, power supplied from the Power Supply Unit that is connected to each node will have precedence over power supplied from the back-up
Power Supply Unit of the system. Be sure to turn on the Power Supply Units and the PCs simultaneously, or turn on the Power Supply Units first and then turn on the PCs. If the Power Supply Units are turned on or off, a transmission data error will result.
116
SECTION 8
Error Processing
Information to help identify and correct errors that might occur is provided in this section.
8-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2 Network Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
118
124
117
Troubleshooting
8-1 Troubleshooting
Section 8-1
Error Indications The table below lists error conditions, their probable cause, and possible remedies.
Error indicator
RUN indicator not lit
Probable cause
SYSMAC LINK Unit faulty.
Local node has no data link table.
Replace Unit.
Remedy
ERC indicator lit
ERH indicator lit
PC not connected to power supply.
SYSMAC LINK Unit mounted in wrong slot.
Connect to power supply (check connectors).
PC’s power supply voltage too low.
Adjust voltage to within recommended range.
SYSMAC LINK Unit mounting screws are loose.
Tighten screws.
Move Unit to correct slot.
Replace PC.
PC faulty.
Node address i i incorrect.
Not between 1 and 62
Duplicated setting
Set the node address to between 1 and 62.
Set the node addresses again so that each address is used only once and then restart.
Replace the SYSMAC LINK Unit.
Communications Control-
Hardware problem in the communications part of the
Unit.
Power supply circuit is unstable.
Power Supply
Unit is faulty.
Power supply section of the
Unit is faulty.
Connectors are broken or have poor contact.
External power supply has dropped.
Unit mounted to faulty PC.
Unit mounted to incompatible PC.
EEPROM error.
Replace the Power Supply Unit.
Replace the SYSMAC LINK Unit.
Check connectors and replace them if necessary.
Check the primary side of the Power Supply
Unit.
Replace PC.
Replace PC.
Watchdog timer error in PC.
INS indicator not lit Terminator connection faulty.
Re-initialize network parameters and data link tables or replace Unit.
Replace PC.
Connect Terminator correctly.
Connect cables correctly.
LNK indicator flashing
Cable connection faulty.
Local node’s node number greater than the maximum node number set in the polling unit’s network parameters.
Data link table error on local node.
Increase the maximum node number or decrease the local node number.
Re-create data link table.
Error when reading EEPROM.
Data link table of currently operating node and data link table of the local node don’t match.
Re-create data link table or replace PC.
Stop data link and modify the data link table of either the currently operating node or the local node so they match.
Create a data link table.
Note Node numbers cannot be modified with the power on. To change node numbers, first turn off the power, then change the settings, making sure not to duplicate any node numbers.
118
Troubleshooting Section 8-1
Send (90)/RECV(98) Errors
Response code
00: Normal completion
01: Parameter error
02: Unable to transmit
---
Item to check
---
The table below lists response codes returned after execution of the SEND(90) and RECV(98) instructions, the probable cause of errors, and recommended remedies.
Network status of local node
---
Probable cause
Local node parameter is outside of specified range.
Local node not part of Network.
---
Add to Network.
Remedy
Set the parameter correctly.
03: Destination node not in
Network
Network status of destination node
Local node SYSMAC LINK Unit was initialized during instruction execution.
Destination node not part of Network.
Execute the instruction again.
Add to Network.
04: Busy error
05: Response
Time-out
06: Response
Error
07:
Communications controller error
08: Setting error
09: PC error
---
---
Control data
Destination node parameters
AR 1114 (level 0) or
AR 1514 (level 1)
Node number
Destination node indicators
Destination node SYSMAC LINK
Unit was initialized during instruction execution.
Destination node is engaged in receiving data.
Message packet was corrupted by noise.
Response watchdog timer interval too short.
DM Area overrun because of DM
Area size mismatch between
PCs.
An error has occurred in the local node communications controller.
Check node number of local node.
A CPU Unit error at the destination node has occurred.
Execute the instruction again.
Increase the number of transmit retry attempts or re-evaluate the system so that the destination node is not so busy receiving data.
Increase the number of transmit retry attempts. Perform an internode echo test to check noise level.
Increase the value for the response watchdog timer interval.
Check the first word of the data transfer area at the destination node and reset if necessary.
Take corrective action, referring to communications controller errors and remedies table at end of this section.
Set the node number correctly. Make sure the node number is within specified range and that there are no duplicate node numbers.
Clear the error in the CPU Unit (refer to the PC’s Operating Manual).
CV-mode Command Errors The table below lists response codes (main and sub-codes) returned after execution of the CV-mode commands, the probable cause of errors, and recommended remedies. Upon receipt of some commands, the destination node will issue a request to another node; the other node is referred to as the third node.
Main code Probable cause Remedy
00: Normal completion
Subcode
00
01
---
Service was interrupted.
---
Check the contents of the destination transmission area of third node.
119
Troubleshooting
Main code
01: Local node error
02: Destination node error
03: Communications controller error
04: Not executable
05: Routing error
Section 8-1
Subcode
01
02
03
04
05
06
01
Probable cause Remedy
Local node not part of Network.
Add to Network.
Token time-out, node number too high.
Set the local node’s node number below the maximum node number.
Number of transmit retries exceeded.
Check communications with internode echo test. If the test fails, check network.
Maximum number of frames exceeded.
Node number setting error (range).
Either check the execution of events in the network and reduce the number of events occurring in one cycle, or increase the maximum number of frames.
Make sure the node number is within specified range and that there are no duplicate node numbers.
Node number duplication error.
Make sure that there are no duplicate node numbers.
Destination node not part of Network.
Add to Network.
02
03
04
05
01
02
04
01
02
01
02
03
04
No node with the specified node number.
Third node not part of Network.
Busy error, destination node busy.
Response time-out, message packet was corrupted by noise.
Response time-out, response watchdog timer interval too short.
Error occurred in the communications controller, ERC indicator is lit.
CPU Unit error occurred in the PC at the destination node.
Node number setting error.
Check the destination node’s node number.
Check the third node’s node number.
Increase the number of transmit retry attempts or re-evaluate the system so that the destination node is not so busy receiving data.
Increase the number of transmit retry attempts. Perform an internode echo test to check noise level.
Increase the value for the response watchdog timer interval.
Take corrective action, referring to communications controller errors and remedies table at end of this section.
Clear the error in the CPU Unit (refer to the
PC’s Operating Manual)
Make sure the node number is within specified range and that there are no duplicate node numbers.
Check the command code.
An undefined command has been used.
Cannot process command because the specified unit model or version is wrong.
Destination node number is not set in the routing table.
Routing table isn’t registered.
Routing table error.
The maximum number of relay nodes
(2) was exceeded in the command.
Check the unit model and version.
Set the destination node number in the routing table.
Set the source nodes, destination nodes, and relay nodes in the routing table.
Set the routing table correctly.
Redesign the network or reconsider the routing table to reduce the number of relay nodes in the command.
120
Troubleshooting
Main code
10: Command format error
11: Parameter error
20: Read not possible
21: Write not possible
22: Not executable in current mode
23: No Unit
24: Start/halt not possible
Section 8-1
02
03
01
02
03
04
05
06
07
Subcode
01
02
03
04
05
01
02
03
04
06
09
0B
0C
02
03
01
02
01
Probable cause Remedy
The command is longer than the max.
permissible length.
The command is shorter than min.
permissible length.
The designated number of data items differs from the actual number.
An incorrect command format has been used.
An incorrect header has been used.
(The local node’s relay table or relay node’s local network table is wrong.)
A correct memory area code has not been used or Expansion Data Memory is not available.
Check the command format of the command and set it correctly.
Check the command format of the command and set it correctly.
Check the number of items and the data, and make sure that they agree.
Check the command format of the command and set it correctly.
Set the routing table correctly.
Check the command’s memory area code and set the appropriate code.
The access size specified in the command is wrong, or the first address is an odd number.
The first address is in an inaccessible area.
The end of specified word range exceeds the acceptable range.
Set the correct access size for the command.
Set a first address that is in an accessible area.
Check the acceptable limits of the data area and set the word range within the limits.
Check the program number and be sure that it is set correctly.
A non-existent program no. has been specified.
The sizes of data items in the command block are wrong.
The response block is longer than the max. permissible length.
An incorrect parameter code has been specified.
Check the command data and be sure that the sixes of the data items are correct.
Check the command format and set the number of items correctly.
Check the command data and reenter it correctly.
The program area is protected.
Execute the instruction again after issuing the PROGRAM AREA PROTECT CLEAR command.
Set or reset the registered table.
The registered table does not exist or is incorrect.
The specified area is read-only or is write-protected.
The program area is protected.
If the specified area is read-only, the write cannot be performed. If it is write-protected, turn off the write-protect switch and execute the instruction again.
Execute the instruction again after issuing the PROGRAM AREA PROTECT CLEAR command.
The mode is wrong (being executed).
Check the operating mode.
The mode is wrong (stopped).
The PC is in the PROGRAM mode.
The PC is in the DEBUG mode.
The PC is in the MONITOR mode.
Check the operating mode.
Check the PC’s mode.
Check the PC’s mode.
Check the PC’s mode.
The PC is in the RUN mode.
The specified node is not the control node.
Check the PC’s mode.
Check which node is the control node.
The specified memory does not exist.
Check the specifications of the installed file memory.
No clock exists.
Check the model number.
The data link table either hasn’t been created or is incorrect.
Set the data link table correctly.
121
Troubleshooting Section 8-1
Main code
25: Unit error
26: Command error
Subcode
12
05
07
0B
Probable cause Remedy
The service is being executed.
Service cannot be executed from local node because the local node is not part of the data link.
Cannot clear error because the cause of the error still exists.
Execute the command again after the service has been completed or aborted.
Execute the service from a node that is part of the data link.
Eliminate the cause of the error and execute the ERROR CLEAR command.
Data Link Status Errors The following table lists data link status errors, their probable cause, and possible remedies. Check all nodes in question.
Data link status
PC Error ON
Communications error ON
Node not in data link
Point to check
PC Error Flag
(bit 01, 05, 09, or 13 in the data link status flags)
Communications Error Flag
(bit 02, 06, 10, or 14 in the data link status flags)
Probable cause
A fatal error has caused the CPU
Unit to halt (FALS instruction generated, etc.) CPU Unit error.
Connected to an incompatible
PC.
Error resulting from noise.
Data Link Member Flag
(bit 03, 07, 11, or 15 in the data link status flags)
Unit in question is not part of the
Network.
Communications cycle time too short.
Node in question is not part of the data link.
Remedy
Clear the error in the CPU Unit, referring to the Unit’s Operating
Manual and Installation Guide.
Connect only to compatible PCs.
Run an internode echo test; if the results are not OK, re-check the operating environment.
Add the Unit to the Network.
Increase communications cycle time.
Add the node in question to the data link.
Data Link Table Error
Messages
SSS/CVSS
Error
Write not possible
The following tables list data link table errors, their probable cause, and possible remedies for the SSS/CVSS.
Probable Cause and Remedy
The number of LR Area data link words is greater than 64 words. The maximum number of LR Area data link words is 64 words in C-series PCs.
The total number of data link words is greater than 2966 words (918 words when C200HW-SLK13/23
SYSMAC LINK Units are included). Make sure that the total number of data link words is 2966 words or less (918 words or less when C200HW-SLK13/23 SYSMAC LINK Units are included).
The node number of a C200HW-SLK13/23 SYSMAC LINK Unit has been set incorrectly when the total number of data link words exceeds 918. Refer to 5-8 Data Link Precautions for more details on node number settings.
The refresh parameter’s beginning DM or LR word setting is incorrect. When setting the beginning LR word for C-series SYSMAC LINK Units, LR words LR 00 to LR 63 correspond to CV-series addresses
CIO 1000 to CIO 1063. Refer to page 44 for details on data link areas for different PC models.
The refresh parameter’s beginning DM or LR word setting is incorrect and the regions specified by the beginning DM or LR words cannot be used as a data link area. The data area regions that can be used as a data link area vary from PC to PC. Refer to page 44 for details on data link areas for different PC models. (Also, C-series addresses LR 00 to LR 63 correspond to CV-series addresses
CIO 1000 to CIO 1063.)
The refresh parameter’s beginning status word setting is incorrect. Make sure that the beginning status word specifies a region that can be used for the data link status area (16 words). Refer to 5-8
Data Link Precautions for more details.
The refresh parameter’s PC model setting is set to “CV-series.” Set the PC model to “Other” when the setting is for a C-series SYSMAC LINK Unit.
Other Errors The table below lists other errors not covered above. Probable causes and remedies are also provided.
122
Troubleshooting Section 8-1
Error
Communications
Controller error
Communications
Controller error
EEPROM error
Network
Parameters mismatch
Point to check
AR 1114 for operating level 0
AR 1514 for operating level 1
ERC indicator
AR 1114 for operating level 0
AR 1514 for operating level 1
AR 1115 for operating level 0
AR 1515 for operating level 1
ERH indicator
AR 2406 for operating level 1
AR 2407 for operating level 0
Probable cause
Noise or environmental influences.
Remedy
Run an internode echo test; if an error occurs, recheck the operating environment.
Consider replacing communications-related hardware if one of the following errors occurs:
· Communications Controller watchdog timer error · Communications Controller memory error · Communications Controller chip bad · Transmitter portion of
Communications Controller bad · Local node internode echo test error
Hardware problem in the communications section of the Unit.
Power supply unstable.
• Communications
Controller memory error.
• Communications
Controller chip bad.
• Transmission section of the
Communications
Controller bad.
• Local node loopback test error.
• Communications
Controller watchdog timer error.
Power Supply Unit may be faulty.
Power supply section of the Unit is faulty.
Connectors are broken or have poor contact.
External power supply on the primary side of the
Power Supply Unit has dropped.
Reinitialize the SYSMAC LINK Unit
If the problem recurs, replace the
Unit.
Replace the SYSMAC LINK Unit.
Replace the Power Supply Unit.
Replace the SYSMAC LINK Unit.
Check connectors and replace them if necessary.
Check the primary side of the
Power Supply Unit.
Network parameters backed up in the
EEPROM or data link table corrupted.
Reset the network parameters and data link tables in the node in question.
Network parameters or data link table destroyed when backing up in EEPROM.
When a network parameters mismatch occurs, the parameters have been destroyed.
When the LNK indicator flashes, it indicates that the data link table has been destroyed.
Network parameters being used in the currently operating Network do not match the network parameters set in the
Unit in question.
(1) Reset the network parameters and data link tables using the SSS/
CVSS.
(2) Initialize the Unit by toggling DIP switch 1, pin 7 (C1000H-SLK11 or
C1000H-SLK21) or DIP switch 2, pin 3 (C200HW-SLK13/14/23/24).
a)If an EEPROM error continues to occur even after performing the reset actions above, the EEPROM has failed. Replace the Unit.
Use the SSS/CVSS to check the network parameters and reset them if necessary.
123
Network Troubleshooting Section 8-2
8-2 Network Troubleshooting
Use the headings in this section to troubleshoot problems that occur in the Network and find a list of the probable causes of the problem.
Unable to operate network
Check indicators on the entire Network.
RUN indicator not lit
• Check whether power is being supplied to the PC at adequate voltage.
• Check whether mounting screws on Unit are tight.
•
Check whether the Unit is mounted in a permissible slot on the Rack.
• Check whether the Unit operates normally when mounted on another PC.
•
If none of the actions above solve the problem, replace suspect SYSMAC
LINK Units.
INS indicator not lit
•
Check whether local node number is greater than the maximum node number setting. If it is, lower local node number or increase maximum node number.
• Check whether the same node number has been assigned twice.
• In coaxial cable systems, check whether the Terminators are connected properly.
•
Check whether all cables are connected properly.
• Check whether the cables transmit properly.
Unable to add local node to network
A local node cannot be added to the Network. (Check indicators on the node which cannot be added.)
RUN indicator not lit
•
Check whether power is being supplied to the PC at adequate voltage.
• Check whether mounting screws on Unit are tight.
• Check whether the Unit is mounted in a permissible slot on the Rack.
•
Check whether the Unit operates normally when mounted on another PC.
• If none of the actions above solve the problem, replace suspect SYSMAC
LINK Units.
ERC indicator lit
• Check the PC’s Communications Controller Error Flags. If ON, replace the
SYSMAC LINK Unit.
•
Check whether node number is within the range of 1 to 62. If not, reset to a unique node number from 1 to 62 (duplicate node numbers not permitted).
• Check for duplicate node numbers. Make sure each node number is assigned to only one unit.
ERH indicator lit
• Check whether the Unit is mounted to an incompatible model or version or PC.
Replace PC if necessary.
• Check for CPU Unit error in the PC. Switch power off and turn on again. If problem occurs again, replace PC.
•
Check for EEPROM error.
INS indicator not lit
•
Check whether local node number is greater than the maximum node number setting. If it is, lower local node number or increase maximum node number.
• Check whether the same node number has been assigned twice.
124
Network Troubleshooting Section 8-2
• In coaxial cable systems, check whether the Terminators are connected properly.
• Check whether all cables are connected properly.
• Check whether the cables transmit properly.
Data link cannot be started
Data link does not operate properly. Check indicators on the data link nodes.
LNK indicator is not lit and
RUN indicator not lit
• Check whether power is being supplied to the PC at adequate voltage.
• Check whether mounting screws on Unit are tight.
• Check whether the Unit is mounted in a permissible slot on the Rack.
• Check whether the Unit operates normally when mounted on another PC.
• If none of the actions above solve the problem, replace SYSMAC LINK Units.
ERC indicator lit
• Check the PC’s Communications Controller Error Flags. If ON, replace the
SYSMAC LINK Unit.
• Check whether node number is within the range of 1 to 62. If not, reset to a unique node number from 1 to 62 (duplicate node numbers not permitted).
•
Check for duplicate node numbers. Make sure each node number is assigned to only one unit.
ERH indicator lit
•
Check whether the Unit is mounted to an incompatible model or version or PC.
Replace PC if necessary.
•
Check for CPU Unit error in the PC. Switch power off and turn on again. If problem occurs again, replace PC.
•
Check for EEPROM error.
INS indicator not lit
•
Check whether local node number is greater than the maximum node number setting. If it is, lower local node number or increase maximum node number.
•
Check whether the same node number has been assigned twice.
•
In coaxial cable systems, check whether the Terminators are connected properly.
• Check whether all cables are connected properly.
• Check whether the cables transmit properly.
LNK indicator flashing
• Check whether a data link table has been created. If not, generate one.
• Check whether an EEPROM error has occurred. If so, investigate EEPROM error causes and remedies as outlined on page 123
• If a data link is already operating on the same Network, bring that data link to a halt, and start the data link that has the problem.
• If the LNK indicator flashing on other nodes, stop the data links in those nodes.
Data link cannot be stopped
Data link does not operate properly. Check indicator indicators on the data link nodes.
LNK indicator is not lit and
RUN indicator not lit
• Check whether power is being supplied to the PC at adequate voltage.
• Check whether mounting screws on Unit are tight.
125
Network Troubleshooting Section 8-2
• Check whether the Unit is mounted in a permissible slot on the Rack.
• Check whether the Unit operates normally when mounted on another PC.
•
If none of the actions above solve the problem, replace suspect SYSMAC
LINK Units.
ERC indicator lit
•
Check the PC’s Communications Controller Error Flags. If ON, replace the
SYSMAC LINK Unit.
•
Check whether node number is within the range of 1 to 62. If not, reset to a unique node number from 1 to 62 (duplicate node numbers not permitted).
• Check for duplicate node numbers. Make sure each node number is assigned to only one unit.
ERH indicator lit
• Check whether the Unit is mounted to an incompatible model or version or PC.
Replace PC if necessary.
•
Check for CPU Unit error in the PC. Switch power off and turn on again. If problem occurs again, replace PC.
•
Check for EEPROM error.
INS indicator not lit
• Check whether local node number is greater than the maximum node number setting. If it is, lower local node number or increase maximum node number.
• Check whether the same node number has been assigned twice.
• In coaxial cable systems, check whether the Terminators are connected properly.
•
Check whether all cables are connected properly.
•
Check whether the cables transmit properly.
Node cannot join data link
Node cannot be entered into the data link. Check indicators on the node which you want to add to data link.
LNK indicator is not lit and
RUN indicator not lit
• Check whether power is being supplied to the PC at adequate voltage.
• Check whether mounting screws on Unit are tight.
•
Check whether the Unit is mounted in a permissible slot on the Rack.
•
Check whether the Unit operates normally when mounted on another PC.
•
If none of the actions above solve the problem, replace suspect SYSMAC
LINK Units.
ERC indicator lit
• Check the PC’s Communications Controller Error Flags. If ON, replace the
SYSMAC LINK Unit.
• Check whether node number is within the range of 1 to 62. If not, reset to a unique node number from 1 to 62 (duplicate node numbers not permitted).
•
Check for duplicate node numbers. Make sure each node number is assigned to only one unit.
ERH indicator lit
•
Check whether the Unit is mounted to an incompatible model or version or PC.
Replace PC if necessary.
• Check for CPU Unit error in the PC. Switch power off and turn on again. If problem occurs again, replace PC.
• Check for EEPROM error.
126
Network Troubleshooting Section 8-2
INS indicator not lit
• Check whether local node number is greater than the maximum node number setting. If it is, lower local node number or increase maximum node number.
•
Check whether the same node number has been assigned twice.
• In coaxial cable systems, check whether the Terminators are connected properly.
•
Check whether all cables are connected properly.
• Check whether the cables transmit properly.
LNK indicator flashing
•
Confirm that a data link table has been created. If not, do so.
• Check whether the data link tables of nodes which are currently in the data link match that of the local node. If not, stop data link operations and modify the data link table either in the local node or the nodes which are currently linked.
•
If the data link tables do match, check whether an EEPROM error has occurred. If so, investigate EEPROM error causes and remedies.
LNK indicator still not lit
•
When the data link tables have been generated automatically, confirm that the node number of the local node is within the range of node numbers set automatically. If not, either lower the node number of the local node so that it is within the range, or change the automatic settings in AR 07 to include the local node.
• Check whether the node number of the local node is included in the common link parameters in the data link tables of those nodes currently in the data link. If not, stop data link operations and modify the data link tables of either the active nodes or of the local node.
127
SECTION 9
Inspection and Maintenance
This section contains information describing periodic maintenance required by the System and how to replace a SYSMAC
LINK Unit.
9-1 Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-2 Replacing SYSMAC LINK Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
130
131
129
Periodic Inspection Section 9-1
9-1 Periodic Inspection
SYSMAC LINK Units must be inspected on a regular basis to ensure correct operation. SYSMAC LINK Units are built primarily of solid-state components and contain almost no parts subject to wear. Nevertheless, the life span of some solid-state components can be shortened as a result of adverse environmental conditions.
We recommend that the following points be checked at least once every 6 to
12 months as part of a standard inspection program. Ambient conditions should be checked more frequently. If any of these items deviate from the prescribed standards, take appropriate action to correct the condition.
Item Description
Ambient conditions Temperature: 0 ° to 55 ° C
Humidity: 10% to 90% (no condensation)
Dust-free
Installation SYSMAC LINK Units securely attached?
Cable connectors tight?
Screws tightened on terminal blocks for external wiring?
Cabling used for external wiring intact (no breaks)?
We recommend that users have backup Units available to make repairs and minimize down-time if a problem occurs in a SYSMAC LINK Unit.
Handling Precautions when
Replacing Units
Please observe the following precautions in the event of a problem:
• Always turn the power off when replacing a SYSMAC LINK Unit.
•
After replacing a Unit, always make the required settings before restarting operation.
• If a SYSMAC LINK Unit fails, replace it with a new one and immediately verify that the new Unit is working properly.
• When returning a malfunctioning SYSMAC LINK Unit for repair, please attach a detailed description of the problem to the Unit and return it to the sales office nearest you (see listing at the end of this manual).
•
If you suspect that a poor connection is the cause of a malfunction, clean the connectors using a clean, soft cloth and industrial-grade alcohol. Remove any lint or threads left from the cloth, and re-mount the SYSMAC LINK Unit.
Interchanging
C200HS-SLK12/22 and
C200HW-SLK13/14/23/24
SYSMAC LINK Units
Tools and Equipment
Needed for Inspection
The C200HW-SLK13/14/23/24 SYSMAC LINK Units’ functions are equal to or superior to those of the C200HS-SLK12/22 Units, so C200HS-SLK12/22 Units can be replaced with C200HW-SLK13/14/23/24 Units. Do not replace C200HW-
SLK13/14/23/24 Units with C200HS-SLK12/22 Units.
The following tools and equipment will be needed to perform inspection and adjustments.
• Assorted flat-blade and Phillips screwdrivers
•
Circuit tester or digital VOM
• Industrial-grade alcohol and clean cotton cloth
• Synchroscope
•
Pen-chart recording oscilloscope
• Thermometer, hygrometer
130
Replacing SYSMAC LINK Units Section 9-2
9-2 Replacing SYSMAC LINK Units
Manually Set Data Link
Note 1. Data link tables and network parameters are stored in the EEPROM in the
SYSMAC LINK Unit. Be extremely careful when removing this component from the old SYSMAC LINK Unit and inserting it in the new Unit.
2. Always turn off the power supply to the PC before attempting to replace a
Unit.
If data links have been established manually, the data link table must be re-set after mounting the new Unit and before activating data links. If data link areas are set automatically, this re-set operation is unnecessary as long as SW1 and SW2 are set correctly.
Network Parameters To use network parameters other than default values, use the following procedure after mounting the new Unit.
1, 2, 3...
1. Set SW1 pin 8 to ON (polling unit setting*).
2. After initializing the SYSMAC LINK Unit, confirm that it has correctly joined the Network by checking the indicators (INS LED lit, and ERC and ERH
LEDs not lit indicate normal operation).
3. Set SW1 pin 8 to OFF (polled unit setting*).
4. After initializing the SYSMAC LINK Unit, confirm that it has correctly joined the Network by checking the indicators (INS LED lit, and ERC and ERH
LEDs not lit indicate normal operation).
Note *Refer to
4-5 Polling Unit Setting
for more information on the polling unit.
131
Appendix A
Standard Models
SYSMAC LINK Units
Name
SYSMAC LINK Unit
Specifications
Use optical fiber cable. Refer to the tables below for accessories.
Use coaxial cable. Refer to the tables below for accessories.
Model
C200HW-SLK13
C200HW-SLK14
C1000H-SLK11
C200HW-SLK23
C200HW-SLK24
C1000H-SLK21-V1
Accessories
The required number of each of the following is included with the SYSMAC LINK Units. Replacement parts can be ordered using the following model numbers.
•
Optical-type Units
Name
Optical Fiber Cable
Mounting Bracket
Specifications
Secures the optical fiber cables to the Unit and includes the following:
Mounting Bracket M3 hexagonal nuts (2)
Cable Retainer
Terminal screws (2)
Pan-head Phillips screws (M3 x 6) (2)
Binding Phillips screw (M3 x 10)
•
Coaxial Units
Name
F Adapter
F Adapter cover
Specifications
One of each is included with the C200HW-SLK23/24 and
F Adapter Attachment Stirrup One is included with the C200HW-SLK23/24 only.
Model
C1000H-CE001
C1000H-COV01
C200H-TL001
Related Items
The following items might be required depending on the SYSMAC LINK Unit and system configuration.
Name
Bus Connector
(F C200HX/HG/HE)
Bus Connector
(F C200H/HS)
Communications
Board
Terminator
Specifications Model
Connects one Unit C200HW-CE001
Required to connect one SYSMAC LINK Unit and one PC Card Unit to a C200HX/HG/HE.
Connects two Units C200HW-CE002
Connects two Units C200HW-CE012
Connects one Unit C200H-CE001
Connects two Units C200H-CE002
Required to connect SYSMAC LINK Unit(s) to a C200HX/HG/HE.
Two required for each Network connected with coaxial cable.
C200HW-COM01
C200HW-COM04-EV1
C1000H-TER01
Auxiliary Power Supply Units
Name Specifications
For use with the C1000H-SLK11.
For use with the C200HW-SLK13/14.
Model
C1000H-APS01
C200H-APS03
133
Standard Models Appendix A
Accessories
The required number of each of the following is included with the Auxiliary Power Supply Units. Replacement parts can be ordered using the following model numbers.
Name
Power Supply Cable (Supplies one Unit.)
Specifications
One is included with the C1000H-APS01.
One is included with the C200H-APS03.
Model
C1000H-CN111
C200H-CN111
Related Items
The following items will be required when connecting two Units to one Power Supply Unit.
Name
Power Supply Cable
Specifications
Connects to one Unit. Order one more cable (one is included with the
Power Supply Unit) when connecting two C1000H-SLK11 Units.
Connects to two Units. Order one when connecting two C200HW-
SLK13/14 Units.
Model
C1000H-CN111
C200H-CN211
Applicable CPU Units
The following table shows which CPU Units are compatible with which SYSMAC LINK Units. The SYSMAC LINK
Units cannot be used with other CPU Units or with a C2000H Duplex System (even one set for Simplex operation.)
A Communications Board equipped with a Link Interface (C200HW-COM01/04-EV1) is required when mounting a
SYSMAC LINK Unit to a C200HX/HG/HE PC.
SYSMAC LINK Unit
C1000H-SLK21-V1
C1000H-SLK11
C200HW-SLK23/24
Specifications
Coaxial-type
Optical-type
Coaxial-type
Applicable CPU Unit(s)
C1000H-CPU01-EV1
C200H-CPU11-E
C200H-CPU31-E
C200HS-CPU31-E
C200HS-CPU33-E
C200HX-CPU34-E
C200HX-CPU44-E
C200HW-SLK13/14 Optical-type
C200HX-CPU64-E
C200HG-CPU33-E
C200HG-CPU43-E
C200HG-CPU53-E
C200HG-CPU63-E
C200HE-CPU32-E
C200HE-CPU42-E
Connectors and Related Items
The following tables list the optical and coaxial connectors as well as tools used to attach the connectors and test connections.
Optical-type
Name
Optical Connector
Optical Connector
Assembly Tools
Optical Power Tester
Specifications
Connects the optical fiber cable to the C1000H-SLK11. (See note 1.)
Two are required for each node.
Connects the optical fiber cable to the C200HW-SLK13/14. Two are required for each node. (Can be used with the C1000H-SLK11 too.)
This inline adapter splices optical fiber cable. One is required for each break in the cable.
For use with the S3200-COCF2071/COCF2571 Optical Connector.
(Optical fiber cable cutters are included)
For use with the S3200-COCF2071/COCF2571 Optical Connector.
(Head Unit model number: S3200-CAT2702)
For use with the S3200-COCF2071/COCF2571 Optical Connector.
Model
S3200-COCF2071
S3200-COCF2571
S3200-COIA2000
CAK-0057
(See note 2.)
S3200-CAT2700
Master Fiber S3200-CAT2001H
Note 1. Never use the S3200-COCF2011 Optical Connector with C200HW-SLK13/14 SYSMAC LINK Units.
The connector might become stuck in the Unit if inserted.
134
Standard Models Appendix A
2. The S3200-COCF2071/2571 Connectors can be assembled using the S3200-CAK1062 by adding the
JRFK-57PWS (made by Sumitomo Electric Industries, Ltd.).
Coaxial-type Units
Name
BNC Connector
Crimping Tool
Specifications Model
Crimp-on connector.
BNC-P-5C-CR10-B
Attaches the connector.
CR-H-1130
Cables
Optical Fiber Cable
The following table lists the Hard Plastic-clad Optical Fiber Cables that can be used with the C200HW-SLK13/14 and C1000H-SLK11.
Name
Optical Fiber Cable
Specifications
Black, 10 m long
Black, 50 m long
Black, 100 m long
Black, 500 m long
Black, 1000 m long
Orange, 10 m long
Orange, 50 m long
Orange, 100 m long
Orange, 500 m long
Orange, 1000 m long
Model
S3200-HCCB101
S3200-HCCB501
S3200-HCCB102
S3200-HCCB502
S3200-HCCB103
S3200-HCCO102
S3200-HCCO501
S3200-HCCO102
S3200-HCCO502
S3200-HCCO103
The following table shows the code used the last 6 or 7 characters (after S3200-H) of the Optical Fiber Cable model numbers.
Character
First
Second
Third
Fourth
Fifth
Sixth
Seventh
Possible characters
C or B
C or L
B or O
A = 1 to 9
Always 0
B = 1 to 3
N or blank
Meaning
C indicates cord, and B indicates cable.
C indicates no power cable, and L indicates power cable attached.
B indicates black, and O indicates orange.
Cable length in scientific notation. L = A : 10 B .
N indicates no tension wires are attached.
Coaxial Cable
Use a high quality 5C-2V coaxial cable with the C200HW-SLK23/24 and C1000H-SLK21-V1.
Peripheral Devices
Name
SSS
CVSS
Programming Console
Specifications
IBM PC/AT or compatible, 3.5” disks
IBM PC/AT or compatible, 3.5” disks
Vertical, w/backlight
Horizontal, w/backlight
Hand-Held, w/backlight Except for C200H and C20, the Programming
Console Adapter AP003 and connecting cable CN222/CN422 are necessary. They are sold separately.
Model
C500-ZL3AT1-E
V1.1
CV500-ZS3AT1-EV2
3G2A5-PRO13-E
3G2A6-PRO15-E
C200H-PRO27-E
135
Appendix B
Specifications
Communications Specifications
Item
C200HW-SLK23/SLK24 and
C1000H-SLK21-V1
Communications method Token ring (N:N)
Specification
Transmission method
Data transmission rate
Media
Transmission path
No. of nodes
Distance between nodes
Manchester encoding, baseband
2 Mbps
Coaxial cable (5C-2V)
Bus
62 max.
Total: 1 km
C200HW-SLK13/SLK14 and
C1000H-SLK11
Hard-plastic-clad quartz optical fiber cable
Daisy chain
Total: 10 km (800 m max. between nodes if press-fit; 1 km if polished and connected) (see note 1)
Message length
Connectors
Link functions
Data link words
Send/receive buffer capacity
RAS functions
Weight
512 bytes max. (not including header)
BNC (F Adaptor)
Data link, data read/write service
Full, half-lock press-in connector
2,966 words max. in LR and DM Areas combined (918 words max. with only C200HW-
SLK13/SLK23 in data link) (see note 2)
Buffers for 13 messages (1-message send buffer +2-message receive buffer+10-message send/receive buffer)
Automatic polling unit backup, self-diagnostics (internode echo tests), failed node bypass
(optical systems only), watchdog timer, error (CRC-CCITT) detection = X
16
+ X
12
+ X
5
+ 1
C200HW-SLK23/SLK24: 0.4 kg max.
C1000H-SLK21-V1: 0.6 kg max.
C200HW-SLK13/SLK14: 0.5 kg max.
C1000H-SLK11: 0.7 kg max.
Note 1. A press-fit type connector, which ensures a transmission distance of 800 m, can be made by the user. A cable with connectors is a polished-connection type, and ensures a transmission distance of 1 km.
2. There are some usage restrictions in systems that incorporates the C200HW-SLK14/SLK24 or
C1000H-SLK11/SLK21-V1 with the in the same system. Refer to
5-6-1 Combining the C200HW-
SLK13/SLK23 with other SYSMAC LINK Units
for details.
SR and AR Bits
Refer to your PC’s
Operation Manual
for tables of all SR and AR bits that can be used in relation to SYSMAC LINK
Units.
137
Appendix C
Internal Configuration
The diagrams below show the configuration of the internal components of SYSMAC LINK Units.
Optical Units
CPU System
ROM
Communications controller
CPU bus connector
C200H or
C1000H
Interface
Buffer memory
RAM EEPROM* Optical interface
Optical module
Optical module
Note *Network parameters and data link tables are backed up in EEPROM.
Coaxial-cable Units
CPU System
ROM
Communications controller
CPU bus connector
C200H or
C1000H
Interface
Buffer memory
RAM EEPROM* Driver/ receiver
BNC connector
Note *Network parameters and data link tables are backed up in EEPROM.
139
address
AGF allocation
APF
Auxiliary Area auxiliary bit
Backplane basic Link System baud rate
BCD binary binary-coded decimal bit bit address buffer building-block PC
Glossary
A number used to identify the location of data or programming instructions in memory or to identify the location of a node on a network.
All-glass optical fiber cable; also known as crystal optical fiber cable.
The process by which the PC assigns certain bits or words in memory for various functions. This includes pairing I/O bits to I/O points on Units.
An acronym for all-plastic optical fiber cable.
A PC data area allocated to flags and control bits.
A bit in the Auxiliary Area.
A base to which Units are mounted to form a Rack. Backplanes provide a series of connectors for these Units along with wiring to connect them to the
CPU Unit. Backplanes also provide connectors used to connect them to other
Backplanes. In some Systems, different Backplanes are used for different
Racks; in other Systems, Racks differ only by the Units mounted to them.
A control system that includes only one of the following systems: SYSMAC
LINK System, Remote I/O System, PC Link System, Host Link System, or
NET Link System.
The data transmission speed between two devices in a system measured in bits per second.
Short for binary-coded decimal.
A number system where all numbers are expressed in base 2, i.e., numbers are written using only 0’s and 1’s. Each group of four binary bits is equivalent to one hexadecimal digit. Binary data in memory is thus often expressed in hexadecimal for convenience.
A system used to represent numbers so that every four binary bits is numerically equivalent to one decimal digit.
The smallest piece of information that can be represented on a computer. A bit has the value of either zero or one, corresponding to the electrical signals ON and OFF. A bit represents one binary digit. Some bits at particular addresses are allocated to special purposes, such as holding the status of input from external devices, while other bits are available for general use in programming.
The location in memory where a bit of data is stored. A bit address specifies the data area and word that is being addressed as well as the number of the bit within the word.
A temporary storage space for data in a computerized device.
A PC that is constructed from individual components, or “building blocks.”
With building-block PCs, there is no one Unit that is independently identifiable as a PC. The PC is rather a functional assembly of components.
141
bus byte central processing unit channel
C-mode combined Link System common data common data areas communications cable
Control System controlled system controller
Converting Link Adapter
CPU Backplane
CPU Rack
CPU Unit
C-series PC
Glossary
A communications path used to pass data between any of the Units connected to it.
A unit of data equivalent to 8 bits, i.e., half a word.
A device that is capable of storing programs and data, and executing the instructions contained in the programs. In a PC System, the central processing unit executes the program, processes I/O signals, communicates with external devices, etc.
See
word
.
The form of communications useable with either C-series or CV-series PCs. See
CV-mode
.
A control system that includes more than one of the following systems: SYS-
MAC LINK System, Remote I/O System, PC Link System, Host Link System, or NET Link System.
Data that is stored in a memory of a PC and which is shared by other PCs in the same the same system. Each PC has a specified section(s) of the area allocated to it. Each PC writes to the section(s) allocated to it and reads the sections allocated to the other PCs with which it shares the common data.
LR data areas in separate PCs whose contents are kept the same. Each PC writes data to certain LR area words, and then transfers this data to the same
LR area words in the other PCs that have a PC or SYSMAC LINK Unit connected in series with it. Common data areas are created in PC Link Systems and SYSMAC LINK Systems.
Cable used to transfer data between components of a control system and conforming to the RS-232C or RS-422 standards.
All of the hardware and software components used to control other devices.
A Control System includes the PC System, the PC programs, and all I/O devices that are used to control or obtain feedback from the controlled system.
The devices that are being controlled by a PC System.
A device on a general-purpose interface bus that is capable of controlling communications.
A Link Adapter used to convert between different types of optical fiber cable, different types of wire cable, or between optical fiber cable and wire cable. Such conversion is necessary to connect Units that use different forms of communication.
A Backplane used to create a CPU Rack.
Part of a building-block PC, the CPU Rack contains the CPU Unit, a Power
Supply, and other Units. With most PCs, the CPU Rack is the only Rack that provides linkable slots.
See
central processing unit
.
Any of the following PCs: C2000H, C1000H, C500, C200H, C200H j , C40H,
C28H, C20H, C60K, C60P, C40K, C40P, C28K, C28P, C20K, C20P, C120, or
C20.
142
data area data area boundary data length data link data link area data link table data sharing decrement default digit
DIN track
CTS
CTS signal
CV Support Software
CV-mode
CV-series PC
CVSS
DAC daisy-chain
Data Access Console
Glossary
An acronym for clear-to-send, a signal used in communications between electronic devices to indicate that the receiver is ready to accept incoming data.
A signal used in communications between electronic devices to indicate that the receiver is ready to accept incoming data.
A programming package run on an IBM PC/AT or compatible to serve as a Programming Device for CV-series PCs.
A form of communications useable only with CV-series PCs. See
C-mode
.
Either of the following PCs: CV500 or CV1000.
See
CV Support Software
.
See
Data Access Console
.
A serial connection method in which each device is connected through the previous device.
A Programming Device used to monitor and control memory area contents. The
Data Access Console does not afford the wide range of programming capabilities as the GPC or CVSS and is designed for system monitoring and maintenance.
An area in the PC’s memory that is designed to hold a specific type of data, e.g., the LR area is designed for to hold common data in a PC Link System.
The highest address available within a data area. When designating an operand that requires multiple words, it is necessary to ensure that the highest address in the data area is not exceeded.
In communications, the number of bits that is to be treated as one unit in data transmissions.
An automatic data transmission operation that allows PCs or Units within PC to pass data back and forth via common data areas.
A common data area established through a data link.
A table of settings kept in memory that specifies what words are to be part of a data link for all PCs involved in the link.
An aspect of SYSMAC Link Systems and SYSMAC NET Link Systems in which common data areas or common data words are created between two or more
PCs.
Decreasing a numeric value, usually by 1.
A value automatically set by the PC when the user does not specifically set another value. Many devices will assume such default conditions upon the application of power.
A unit of storage in memory that consists of four bits.
A rail designed to fit into grooves on various devices to allow the devices to be quickly and easily mounted to it.
143
Glossary
DIP switch distributed control
Dual in-line package switch, an array of pins in a signal package that is mounted to a circuit board and is used to set operating parameters.
A automation concept in which control of each portion of an automated system is located near the devices actually being control, i.e., control is decentralized and ‘distributed’ over the system. Distributed control is a concept basic to PC Systems.
electrical noise error code even parity
Random variations of one or more electrical characteristics such as voltage, current, and data, which might interfere with the normal operation of a device.
A numeric code generated to indicate that an error exists, and something about the nature of the error. Some error codes are generated by the system; others are defined in the program by the operator.
A communication setting that adjusts the number of ON bits so that it is always even. See
parity
.
event (data) transfer event processing
FA fatal error flag force reset force set
A data transfer that is performed in response to an event, e.g., an interrupt signal.
Processing that is performed in response to an event, e.g., an interrupt signal.
Factory automation.
An error that stops PC operation and requires correction before operation can continue.
A dedicated bit in memory that is set by the system to indicate some type of operating status. Some flags, such as the carry flag, can also be set by the operator or via the program.
The process of forcibly turning OFF a bit via a programming device. Bits are usually turned OFF as a result of program execution.
The process of forcibly turning ON a bit via a programming device. Bits are usually turned ON as a result of program execution.
frame checksum gateway
GPC hexadecimal host computer
The results of exclusive ORing all data within a specified calculation range. The frame checksum can be calculated on both the sending and receiving end of a data transfer to confirm that data was transmitted correctly.
An interface that connects two networks.
An acronym for Graphic Programming Console.
Graphic Programming Console A programming device with advanced programming and debugging capabilities to facilitate PC operation. A Graphic Programming Console is provided with a large display onto which ladder-diagram programs can be written directly in ladder-diagram symbols for input into the PC without conversion to mnemonic form.
A number system where all numbers are expressed to the base 16. In a PC all data is ultimately stored in binary form, however, displays and inputs on Programming Devices are often expressed in hexadecimal to simplify operation.
Each group of four binary bits is numerically equivalent to one hexadecimal digit.
A computer that is used to transfer data to or receive data from a PC in a Host
Link system. The host computer is used for data management and overall system control. Host computers are generally small personal or business computers.
144
I/O allocation
I/O bit
I/O capacity
I/O Control Unit
I/O delay
I/O devices
I/O Interface Unit
I/O point
I/O refreshing
I/O response time
I/O Unit
I/O word
IBM PC/AT or compatible increment initialize input input bit
Glossary
The process by which the PC assigns certain bits in memory for various functions. This includes pairing I/O bits to I/O points on Units.
A bit in memory used to hold I/O status. Input bits reflect the status of input terminals; output bits hold the status for output terminals.
The number of inputs and outputs that a PC is able to handle. This number ranges from around one-hundred for smaller PCs to two-thousand for the largest ones.
A Unit mounted to the CPU Rack in certain PCs to monitor and control I/O points on Expansion I/O Units.
The delay in time from when a signal is sent to an output to when the status of the output is actually in effect or the delay in time from when the status of an input changes until the signal indicating the change in the status is received.
The devices to which terminals on I/O Units, Special I/O Units, or Intelligent
I/O Units are connected. I/O devices may be either part of the Control System, if they function to help control other devices, or they may be part of the controlled system.
A Unit mounted to an Expansion I/O Rack in certain PCs to interface the
Expansion I/O Rack to the CPU Rack.
The place at which an input signal enters the PC System or an output signal leaves the PC System. In physical terms, an I/O point corresponds to terminals or connector pins on a Unit; in terms of programming, an I/O point corresponds to an I/O bit in the IR area.
The process of updating output status sent to external devices so that it agrees with the status of output bits held in memory and of updating input bits in memory so that they agree with the status of inputs from external devices.
The time required for an output signal to be sent from the PC in response to an input signal received from an external device.
The most basic type of Unit mounted to a backplane to create a Rack. I/O
Units include Input Units and Output Units, each of which is available in a range of specifications. I/O Units do not include Special I/O Units, Link Units, etc.
A word in the CIO area that is allocated to a Unit in the PC System and is used to hold I/O status for that Unit.
A computer that has similar architecture to, that is logically compatible with, and that can run software designed for an IBM PC/AT computer.
Increasing a numeric value, usually by 1.
Part of the startup process whereby some memory areas are cleared, system setup is checked, and default values are set.
The signal coming from an external device into the PC. The term input is often used abstractly or collectively to refer to incoming signals.
A bit in the CIO area that is allocated to hold the status of an input.
145
input device input point input signal instruction interface interrupt (signal) ladder diagram (program) ladder diagram symbol ladder instruction
LAN leading zero least-significant (bit/word)
LED leftmost (bit/word) link
Link Adapter
Link Area linkable slot
Glossary
An external device that sends signals into the PC System.
The point at which an input enters the PC System. Input points correspond physically to terminals or connector pins.
A change in the status of a connection entering the PC. Generally an input signal is said to exist when, for example, a connection point goes from low to high voltage or from a nonconductive to a conductive state.
A direction given in the program that tells the PC of the action to be carried out, and the data to be used in carrying out the action. Instructions can be used to simply turn a bit ON or OFF, or they can perform much more complex actions, such as converting and/or transferring large blocks of data.
An interface is the conceptual boundary between systems or devices and usually involves changes in the way the communicated data is represented. Interface devices such as NSBs perform operations like changing the coding, format, or speed of the data.
A signal that stops normal program execution and causes a subroutine to be run or other processing to take place.
A form of program arising out of relay-based control systems that uses circuittype diagrams to represent the logic flow of programming instructions. The appearance of the program is similar to a ladder, and thus the name.
A symbol used in drawing a ladder-diagram program.
An instruction that represents the conditions on a ladder-diagram program. The other instructions in a ladder diagram fall along the right side of the diagram and are called terminal instructions.
An acronym for local area network.
One of one or more consecutive zeros in the leftmost digits of an address or numeric value.
See
rightmost (bit/word).
Acronym for light-emitting diode; a device used as for indicators or displays.
The highest numbered bits of a group of bits, generally of an entire word, or the highest numbered words of a group of words. These bits/words are often called most-significant bits/words.
A hardware or software connection formed between two Units. “Link” can refer either to a part of the physical connection between two Units or a software connection created to data existing at another location (i.e., data links).
A Unit used to connect communications lines, either to branch the lines or to convert between different types of cable. There are two types of Link Adapter:
Branching Link Adapters and Converting Link Adapters.
A data area that is designed for use in data links.
A slot on either a Backplane to which a Link Unit can be mounted. Backplanes differ in the slots to which Link Units can be mounted.
146
Glossary
Link System
Link Unit local area network loop connection loop-back
MONITOR mode most-significant (bit/word)
Multilevel PC Link System
Multilink PC Link System
Multilevel SYSMAC LINK
System
Network network interrupt
Network Service Board node noise interference nonfatal error
NSB
NSU
OFF
A system that includes one or more of the following systems: SYSMAC LINK
System, Remote I/O System, PC Link System, Host Link System, or NET
Link System.
Any of the Units used to connect a PC to a Link System. These are SYSMAC
LINK Units, Remote I/O Units, I/O Link Units, PC Link Units, Host Link Units, and NET Link Units.
A network consisting of nodes or positions in a loop arrangement. Each node can be any one of a number of devices. This kind of network usually operates over a small area such as a group of offices or a factory floor.
A method for connecting communications lines in which each Unit is connected to two other Unit to form a closed loop.
The processes of using an alternate communications path that runs in the reverse direction of the normal communications path to prevent communications from being disabled when communications along the normal path are not possible.
A mode of PC operation in which normal program execution is possible, and which allows modification of data held in memory. Used for monitoring or debugging the PC.
See
leftmost (bit/word).
A PC Link System in which at least one PC has two PC Link Units mounted to it.
A PC Link System in which more than two PCs share a common data area.
A SYSMAC LINK System in which at least one PC has two PC Link Units mounted to it.
See SYSMAC LINK Network.
An interrupt that occurs when data is received on the network interface.
A device with an interface to connect devices other than PCs to a SYSMAC NET
Link System.
One of the positions in a LAN. Each node incorporates a device that can communicate with the devices at all of the other nodes. The device at a node is identified by the node address.
Disturbances in signals caused by electrical noise.
A hardware or software error that produces a warning but does not stop the PC from operating.
An acronym for Network Service Board.
An acronym for Network Service Unit.
The status of an input or output when a signal is said not to be present. The OFF state is generally represented by a low voltage or by non-conductivity, but can be defined as the opposite of either.
147
OFF delay
ON
ON delay optical cable link optical communications optical connector optical fiber cable output output bit output device output point output signal overflow overseeing overwrite parity parity check
PC
PC configuration
PCB
148
Glossary
The delay between the time when a signal is switched OFF (e.g., by an input device or PC) and the time when the signal reaches a state readable as an OFF signal (i.e., as no signal) by a receiving party (e.g., output device or PC).
The status of an input or output when a signal is said to be present. The ON state is generally represented by a high voltage or by conductivity, but can be defined as the opposite of either.
The delay between the time when an ON signal is initiated (e.g., by an input device or PC) and the time when the signal reaches a state readable as an ON signal by a receiving party (e.g., output device or PC).
In a Wired Remote I/O System, an optical cable connecting two Converting
Link Adapters. Specified because the System otherwise uses wire communications.
A communications method in which signals are sent over optical fiber cable to prevent noise interference and increase transmission distance.
A connector designed to be connected to an optical fiber cable.
Cable made from light conducting filaments used to transmit signals.
The signal sent from the PC to an external device. The term output is often used abstractly or collectively to refer to outgoing signals.
A bit in the IR area that is allocated to hold the status to be sent to an output device.
An external device that receives signals from the PC System.
The point at which an output leaves the PC System. Output points correspond physically to terminals or connector pins.
A signal being sent to an external device. Generally an output signal is said to exist when, for example, a connection point goes from low to high voltage or from a nonconductive to a conductive state.
The state where the capacity of a data storage location has been exceeded.
Part of the processing performed by the CPU Unit that includes general tasks required to operate the PC.
Changing the content of a memory location so that the previous content is lost.
Adjustment of the number of ON bits in a word or other unit of data so that the total is always an even number or always an odd number. Parity is generally used to check the accuracy of data after being transmitted by confirming that the number of ON bits is still even or still odd.
Checking parity to ensure that transmitted data has not been corrupted.
An acronym for Programmable Controller.
The arrangement and interconnections of the Units that are put together to form a functional PC.
An acronym for printed circuit board.
PC Link Subsystem
PC Link System
PC Link Unit
PC System peripheral device peripheral servicing polled unit polling polling unit printed circuit board
PROGRAM mode
Programmable Controller
Programming Console programming device
Glossary
All of the PCs that share the same part of the LR are in a PC Link System.
PC Link Subsystems exist within a PC Link System when one or more of the
PCs in the System has two PC Link Units mounted to it. If Subsystems exist, the System is considered a Multilevel PC Link System.
A System in which PCs are connected through PC Link Units to enable them to share common data areas, i.e., each of the PCs writes to certain words in the LR area and receives the data of the words written by all other PC Link
Units connected in series with it.
The Unit used to connect PCs in a PC Link System.
With building-block PCs, all of the Racks and independent Units connected directly to them up to, but not including the I/O devices. The limits of the PC
System on the upper end is the PC and the program in its CPU Unit and on the lower end, I/O Units, Special I/O Units, Optical I/O Units, Remote Terminals, etc.
Devices connected to a PC System to aid in system operation. Peripheral devices include printers, programming devices, external storage media, etc.
Processing signals to and from peripheral devices, including refreshing, communications processing, interrupts, etc.
Any of the Units in a PC Link system that share common data areas except for the Polling Unit.
A method in which one element in a system monitors changes in the contents of certain data words to maintain accurate records of the contents. In a
PC Link System, polling is performed by the polling unit to maintain common data areas among PCs.
The PC Link Unit in a PC Link System that handles data transmissions to maintain common data areas within the PCs. In a PC Link System, the polling unit always shares common data areas with the polled units.
A board onto which electrical circuits are printed for mounting into a computer or electrical device.
A mode of operation that allows inputting and debugging of programs to be carried out, but that does not permit normal execution of the program.
A computerized device that can accept inputs from external devices and generate outputs to external devices according to a program held in memory.
Programmable Controllers are used to automate control of external devices.
Although single-unit Programmable Controllers are available, building-block
Programmable Controllers are constructed from separate components. Such
Programmable Controllers are formed only when enough of these separate components are assembled to form a functional assembly, i.e., there is no one individual Unit called a PC.
The simplest form or programming device available for a PC. Programming
Consoles are available both as hand-held models and as CPU Unit-mounting models.
A peripheral device used to input a program into a PC or to alter or monitor a program already held in the PC. There are dedicated programming devices, such as Programming Consoles, and there are non-dedicated devices, such as a host computer.
149
Glossary protocol
Rack read word refresh relay-based control
The parameters and procedures that are standardized to enable two devices to communicate or to enable a programmer or operator to communicate with a device.
An assembly of various Units on a Backplane that forms a functional unit in a building-block PC System. Racks include CPU Racks, Expansion I/O Racks,
I/O Racks, and Slave Racks.
A word in the LR area that contains data transferred from another PC in a PC
Link System. A read word cannot be written to by the PC.
The process of updating output status sent to external devices so that it agrees with the status of output bits held in memory and of updating input bits in memory so that they agree with the status of inputs from external devices.
The forerunner of PCs. In relay-based control, groups of relays are wired to each other to form control circuits. In a PC, these are replaced by programmable circuits.
reserved bit reserved word
Restart Bit rightmost (bit/word) rising edge
RS-232C interface
RS-422 interface
RTS signal
RUN mode self diagnosis serial polling series
A bit that is not available for user application.
A word in memory that is reserved for a special purpose and cannot be accessed by the user.
A bit used to restart a Unit mounted to a PC.
The lowest numbered bits of a group of bits, generally of an entire word, or the lowest numbered words of a group of words. These bits/words are often called least-significant bits/words.
The point where a signal actually changes from an OFF to an ON status.
An industry standard for serial communications.
An industry standard for serial communications.
Request To Send: the BASIC Unit can be programmed to assert this signal when it wishes to send data through a communications port.
The operating mode used by the PC for normal control operations.
A process whereby the system checks its own operation and generates a warning or error if an abnormality is discovered.
A polling method in which each device being polled is polled one at a time in sequence.
A wiring method in which Units are wired consecutively in a string. In Link
Systems wired through Link Adapters, the Units are still functionally wired in series, even though Units are placed on branch lines.
Single-level PC Link
System
Single-link PC Link System
A PC Link System in which there is no PC with more than one PC Link Unit.
A PC Link System that connects only two PCs to each other.
Single-level SYSMAC LINK
System
A SYSMAC LINK System in which there is no PC with more than one SYS-
MAC LINK Unit.
150
slot
Special I/O Unit switching capacity
SYSMAC LINK Network
SYSMAC LINK System
SYSMAC/NET Link
Read/Write Instructions system configuration system error system error message terminator transmission distance
Unit unit number user program watchdog timer
WDT wire communications
Glossary
A position on a Rack (Backplane) to which a Unit can be mounted.
A dedicated Unit that is designed for a specific purpose. Special I/O Units include Position Control Units, High-Speed Counter Units, Analog I/O Units, etc.
The voltage/current that a relay can switch on and off.
All the PCs connected in series via SYSMAC LINK Units that can join together to form data links or read and write data back and forth.
A Link System that contains two or more SYSMAC LINK Networks.
Programming instructions used to transfer data between PC connected in a
SYSMAC LINK Network or NET Link Subsystem. The write instruction acronym is SEND(90) and is used to transfer data to another PC. The read instruction acronym is RECV(98) and is used to receive data from another
PC.
The arrangement in which Units in a System are connected.
An error generated by the system, as opposed to one resulting from execution of an instruction designed to generate an error.
An error message generated by the system, as opposed to one resulting from execution of an instruction designed to generate a message.
The code comprising an asterisk and a carriage return (* CR) which indicates the end of a block of data in communications between devices. Frames within a multi-frame block are separated by delimiters. Also a Unit in a Link System designated as the last Unit on the communications line.
The distance that a signal can be transmitted.
In OMRON PC terminology, the word Unit is capitalized to indicate any product sold for a PC System. Though most of the names of these products end with the word Unit, not all do, e.g., a Remote Terminal is referred to in a collective sense as a Unit. Context generally makes any limitations of this word clear.
A number assigned to some Link Units and Special I/O Units to assign words and sometimes other operating parameters to it.
A program written by the user as opposed to programs provided with a product.
A timer within the system that ensures that the cycle time stays within specified limits. When limits are reached, either warnings are given or PC operation is stopped depending on the particular limit that is reached.
See
watchdog timer
.
A communications method in which signals are sent over wire cable.
Although noise resistance and transmission distance can sometimes be a problem with wire communications, they are still the cheapest and the most common, and perfectly adequate for many applications.
151
word word address word allocation work bit work word write word
Glossary
A unit of data storage in memory that consists of 16 bits. All data areas consists of words. Some data areas can be accessed only by words; others, by either words or bits.
The location in memory where a word of data is stored. A word address must specify (sometimes by default) the data area and the number of the word that is being addressed.
The process of assigning I/O words and bits in memory to I/O Units and terminals in a PC System to create an I/O Table.
A bit in a work word.
A word that can be used for data calculation or other manipulation in programming, e.g., LR words not used in a PC Link or NET Link System.
A word written in the LR area by a PC in a PC Link System. The data of the write words is transferred to the rest of the PCs that share common data areas, i.e., the write words for one PC are read words for the rest of the PCs in the PC Link System.
152
A-B applications, precautions, xiii
AR Area reading, 90, 91 writing, 90 automatic generation of data link tables, 46
Auxiliary Power Supply Unit, 20 bits, controlling cancelling forced-set and forced-reset bits, 102 force-setting and force-resetting bits, 101 broadcast test, 110, 115
Bus Connector, 25 bypass, failed node bypass function, 116
C cables
Auxiliary Power Supply Unit, 22 connecting transmission cables, 26 characteristics, data link, 63
CIO Area, reading, 90, 91 clock reading CV-series clock, 97 setting CV-series clock, 97 coaxial cable. See cables common link parameters, 48 communications specifications, 137 testing broadcast test, 110, 115 internode echo test, 109, 113 token bus, 36
Communications Boards, 20, 25 communications cycle, 36 communications cycle time, 40 data link, 63 compatibility, 6 completion status. See end codes counters changing PV, 90 reading Completion Flag forced status, 102 reading Completion Flag status, 90, 91 reading PV, 90, 91
CV-mode commands errors, 119 response codes, errors, 119
CV-mode commands command format, 86
Index
command set
BROADCAST TEST DATA SEND, 110
BROADCAST TEST RESULTS READ, 110
CLOCK READ, 97
CLOCK WRITE, 97
CONTROLLER DATA READ, 95, 104
CONTROLLER STATUS READ, 95, 105
DATA LINK START, 103
DATA LINK STATUS READ, 108
ERROR CLEAR, 98
FILE MEMORY BLOCK READ, 99
FILE MEMORY BLOCK WRITE, 100
FILE MEMORY INDEX READ, 98
FORCED SET/RESET, 101
FORCED SET/RESET CANCEL, 102
HALT DATA LINK, 103
INTERNODE ECHO TEST, 109
MEMORY AREA READ, 90, 102
MEMORY AREA WRITE, 90
MULTIPLE MEMORY AREA READ, 91
NETWORK STATUS READ, 107
PROGRAM AREA READ, 92
PROGRAM AREA WRITE, 93
RESET, 104
RUN, 94
STOP, 94 memory area code, 89
PCs, 90–103 list, 87 response codes, 88 response format, 86
SYSMAC LINK Units, 103–110 list, 87
CVSS, 112 cycle time, data link refreshing, 37
D data areas. See Memory Areas data exchange timing, 65 data link, 44 activating, 45, 58 characteristics, 63 combining SYSMAC LINK Units, 55 common link parameters, 48 communications cycle time, 63 controlling, 58 creating, 45 data exchange timing, 65 data link area, definition, 44
Data Link Status Flag, 60 data link table generation automatic, 62 manual, 62 errors, 122 example, 55 halting, 58, 103
I/O response time, 66
153
precautions, 59 reading, 77 reading data link status, 108 refresh parameters, 50 refreshing, 47 start-up node, 36 starting, 103 status flags, 60 table back-up, 50 tables automatic generation, 46 definition, 44 examples, 51 manual generation, 48 troubleshooting, 125 write, 76 data links, refresh cycle time, 37 data read/write services, 74 data transfer area, 75 delay times, 84 dimensions, 33
DM Area reading, 90, 91 writing, 90
E-F errors clearing CV-series PC errors, 98
CV-mode commands, 119 data link, 122 data link table, 122
LED indications, 118 other, 122
SEND (90)/RECV (98), 119 failed node, bypassing, 116 file memory reading the contents of, 99 writing the contents of, 100 files, reading indices of blocks stored in file memory, 98
FINS commands. See CV-mode commands flags
Active Node Flags, 42
Communication Controller Error Flag, 42
Communications Error, 62, 63
Data Link Status, 62, 63
EEPROM Error Flag, 42
PC Fatal Error, 62, 63
PC Mode, 62, 63
RECV(98), Enable and Error Flags, 80
SEND(90), Enable and Error Flags, 80 frames, maximum number, 40
154
Index
H-I handling precautions, 130
Host Link Units, compatibility with SYSMAC LINK Units, 6
I/O response time, in data links, 66 indicators, 13
Auxiliary Power Supply Unit, 22 data link, 45 error indications, 118 indirect addressing, 77, 78 example, 82 inspection, 130 tools and equipment needed, 130 installation, 17, 22 precautions, xiii instruction set, PC
RECV(98), 77
SEND(90), 76 internode echo test, 109, 113
L-M
LED indicator. See indicators
Link Units, compatibility, 6 manual generation of data link tables, 48 maximum node number, 40 maximum number of frames, 40 memory area code, 89
Memory Areas designating addresses, 88 reading, 90, 91 reading forced contents, 102 writing, 90 model numbers reading PC model number, 95 reading SYSMAC LINK Unit model number, 104 monitoring, remote, 112 mounting, 18
N-O
NET Link Units, compatibility with SYSMAC LINK Units, 6 network other OMRON network systems, 2 reading network status, 107 troubleshooting, 124 network parameters, 37, 131 conflicting, 41 initializing, 41 setting, 40 number of polled units, 40 operating environment, precautions, xiii operating level, 7, 38 optical fiber cable. See cables
P
PC changing to PROGRAM mode, 94 changing to RUN mode, 94 compatible CPUs, 6
PC memory address. See Memory Areas reading CV-series PC status, 95 reading various CV-series PC data, 95
PC Link Units, compatibility with SYSMAC LINK Units, 6
PC mode, at start-up, 38 polled units, number, 40 polling cycle, definition, 36 polling unit, 4 backup, 115 definition, 36 setting, 39 precautions, xi applications, xiii general, xii handling, 130 interchanging SYSMAC LINK Units, 130 operating environment, xiii safety, xii program reading contents of program area words, 92 writing to program area words, 93 programming, remote, 112
R
RAS, 113
RECV (98), 77 delay time, 85 errors, 119 example, 80 processing, 80 refresh cycle time, 37 refresh of data link area, 47 remote monitoring, 112 remote programming, 112 resetting, SYSMAC LINK Unit, 104 response codes for CV-mode commands, 88 for SEND(90) and RECV(98), 79 response time. See I/O response time
S safety precautions. See precautions
SEND (90), 76 delay time, 84 errors, 119
Index example, 80 processing, 80 specifications, 137
Auxiliary Power Supply Unit, 20 standard models, 133 start-up node, definition, 36 status, data link, 60 switches, 14
DIP switch 1 accessing, 14 location on C1000H–SLK11/SLK21–V1, 10 location on C200HW–SLK13/14/23/24, 12
DIP switch 2, location on C200HW–SLK13/14/23/24, 12 node number, 14, 15 setting, 37 polling unit, 39 reset switch, 10 setting, 15
SYSMAC LINK System communications, 36 features, 3 multilevel, 5 number of PCs, 4 single-level system, 4 system configuration, 4
SYSMAC LINK Unit components
C1000H–SLK11/SLK21–V1, 10
C200HW–SLK13/14/23/24, 12 dimensions, 33 interchanging, 130 reading various Unit data, 104 replacing, 131
SYSMAC LINK Units, combining, 55
T-W test, 115 broadcast, 110, 115 internode echo, 109, 113 timers changing PV, 90 reading Completion Flag forced status, 102 reading Completion Flag status, 90, 91 reading PV, 90, 91 timing data exchange, 65
SEND(90) and RECV(98), 80 token, definition, 36 token bus communications, definition, 36 token cycle, definition, 36 transmission cycle time changing, 65 definition, 37 troubleshooting, 124 wiring, 22 write, 76
155
Revision History
A manual revision code appears as a suffix to the catalog number on the front cover of the manual.
Cat. No. W174-E1-07
Revision code
The following table outlines the changes made to the manual during each revision. Page numbers refer to the previous version.
Revision code
1
2
2A
3
3A
4
5
Date
August 1990
July 1992
November 1992
August 1994
October 1994
August 1996
January 1998
Revised content
Original production
Major rewrite for new version of product.
Information on CV-mode commands and SYSMAC LINK Units using optical fiber cable was added.
Page 22: Diagram and note at bottom of page corrected.
C200H-SLK11 and C200H-SLK21-V1 have been upgraded to C200HS-SLK12 and C200HS-SLK22. Backplane model numbers updated. Scan time changed to cycle time throughout the manual.
Pages 2, 3, 38, 43, 44, 46, 50, 51, 53, 57, 58, 64, 98, 101, 109: “Host computer” changed to “CVSS” when related to the SYSMAC LINK.
Pages 2, 3, 4, 47, 49, 98: “LSS” changed to “FIT” when related to the SYSMAC LINK.
Pages 4, 5, 24, 25, 104, 109, 110, 111, 112, and 117: Terms unified to “Terminator” and “F Adapter.”
Page 5: “Compatibility with other PCs” updated.
Pages 6, 7: “Compatibility with other Link Units” updated.
Page 22: C200H Power Supply Unit information was corrected.
Page 24: Model number correction. C200H-TL001 Attachment Stirrup added.
Page 25: C200H-TL001 Attachment Stirrup added.
Pages 31, 32: Models changed to C200H-SLK11 and C200H-SLK21-V1. C200H-TL001 Attachment Stirrup added.
Page 34: Second paragraph of “Start-up Node” was rewritten.
Page 39: Text added to Setting Network Parameters .
Page 44: DM area information corrected in the top table.
Pages 44, 48: CV Series added to the “Max. number of linked words (in Network)” in the table.
Page 46: Sentence was added to the bottom of the page.
Pages 46, 49: “Software” changed to “CVSS.”
Page 49: Note added.
Page 59: Data Exchange timing diagram corrected.
Pages 60 to 62: Minimum and maximum response time diagrams and descriptions corrected. Two cases added.
Page 64: An addition about the SYSMAC LINK Support Board in Computer Transmission .
Page 65: Data transfer area information added.
Page 66: Note 4 added.
Page 67: Note 3 added.
Page 69: Indirect Addressing example added.
Page 73: List to CV-mode commands for PCs corrected.
Page 80: Parameters for RUN corrected.
Page 98: C200H-IP006 Peripheral Interface Unit added to Peripheral Device Connection . LSS and CVSS information added.
Pages 101, 102: Model number change.
Page 102: Caution has been added.
Page 114: A precaution on interchanging SYSMAC LINK Units added.
Page 121: Weight and notes added to the table.
Page 110: Information of support software capabilities corrected (6 locations).
New version of manual for C200HX/HG/HE.
All references to FIT have been removed or replaced with references to SSS.
Section of precautions added before section 1 and adjustments made to signal words for precautions.
Page 16: Pin functions of pin 8
2
of the top table and 4
2
of the bottom table have been corrected.
Pages 6, 20, 129, 130: “C200HW-COM04” changed to “C200HW-COM04-EV1.”
Pages 7, 8, 19, 38: PC Card Unit information for C200HX/HG/HE PCs added.
Page 25: C200HW-CE012 Bus Connector and Communications Board information added.
Page 129: C200HW-CE012 Bus Connector added to the list in Related Items .
157
Revision code
6
07
Date
March 2000
September 2003
Revision History
Revised content
Updated the Precautions .
Page 60: Added information on data link status, including table describing flag operation and programming examples.
Page 110: Added comment that remote programming or monitoring of CVM1 and CV-series PCs is not possible .
Page 116: Changed description of ERC indicator.
Page 121: Changed description of Communications Controller error.
Page 133: Changed description of send/receive buffer capacity.
Page xiii: “Power Supply Units” added in one place.
Page 28: Model numbers changed in several places.
Page 29: Changes made to table and another table added.
Page 41: Information on conflicting network parameters changed.
Page 67: Numerical changes made in three places.
Page 75: Information on NETWORK READ/WRITE instructions changed.
Page 91: Line added at bottom of page.
Page 134: Model numbers changed in several places in table at bottom of page and note added.
158
W174-E1-07
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