Allen-Bradley ControlLogix Gateway System User Manual

Allen-Bradley
ControlLogix Gateway
System
(Cat. No. 1756 series)
User Manual
Important User Information
Because of the variety of uses for the products described in this publication,
those responsible for the application and use of this control equipment must
satisfy themselves that all necessary steps have been taken to assure that
each application and use meets all performance and safety requirements,
including any applicable laws, regulations, codes and standards.
The illustrations, charts, sample programs and layout examples shown in
this guide are intended solely for purposes of example. Since there are many
variables and requirements associated with any particular installation,
Allen-Bradley does not assume responsibility or liability (to include
intellectual property liability) for actual use based upon the examples shown
in this publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application,
Installation and Maintenance of Solid-State Control (available from your
local Allen-Bradley office), describes some important differences between
solid-state equipment and electromechanical devices that should be taken
into consideration when applying products such as those described in this
publication.
Reproduction of the contents of this copyrighted publication, in whole or
part, without written permission of Rockwell Automation, is prohibited.
Throughout this manual we use notes to make you aware of safety
considerations:
!
ATTENTION: Identifies information about practices or
circumstances that can lead to personal injury or death,
property damage or economic loss
Attention statements help you to:
• identify a hazard
• avoid a hazard
• recognize the consequences
Important: Identifies information that is critical for successful application
and understanding of the product.
ControlLogix, Data Highway Plus, and PLC-5 are trademarks of Rockwell Automation.
ControlNet is a trademark of ControlNet International, Ltd.
DeviceNet is a trademark of Open DeviceNet Vendor Association, Inc.
Ethernet is a trademark of Digital Equipment Corporation, Intel, and Xerox Corporation.
Microsoft and Windows NT are trademarks of Microsoft Corporation.
RSLogix and RSLogix5000 are trademarks of Rockwell Software, Inc.
European Communities (EC)
Directive Compliance
If this product has the CE mark it is approved for installation within the
European Union and EEA regions. It has been designed and tested to meet
the following directives.
EMC Directive
This product is tested to meet the Council Directive 89/336/EC
Electromagnetic Compatibility (EMC) by applying the following standards,
in whole or in part, documented in a technical construction file:
• EN 50081-2 EMC — Generic Emission Standard, Part 2 — Industrial
Environment
• EN 50082-2 EMC — Generic Immunity Standard, Part 2 — Industrial
Environment
This product is intended for use in an industrial environment.
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC Low Voltage,
by applying the safety requirements of EN 61131-2 Programmable
Controllers, Part 2 - Equipment Requirements and Tests. For specific
information required by EN 61131-2, see the appropriate sections in this
publication, as well as the Allen-Bradley publication Industrial Automation
Wiring and Grounding Guidelines For Noise Immunity, publication
1770-4.1.
This equipment is classified as open equipment and must be mounted in an
enclosure during operation to provide safety protection.
Preface
Using This Manual
This preface explains how to use this manual most effectively.
For information about:
who should use this manual
the purpose of this manual
where to find more information
common techniques used in this manual
Rockwell Automation support
Who Should Use
This Manual
See page:
P–1
P–1
P–2
P–3
P–4
Use this manual if you are knowledgeable about ControlLogix Gateway
products, but need information about integrating the products into a system.
You should:
• be familiar with Microsoft® Windows® NT and with terms that describe
what you should be doing when working in Windows NT, e.g., double
click, dialog box, radio checkbox.
• understand Data Highway Plus, ControlNet, and Ethernet networking
concepts.
• be familiar with routing concepts.
If you are not familiar with these concepts or would like additional
information, refer to the documentation listed on the following page or
contact your Rockwell Automation representative for information about
available training.
Purpose of
This Manual
This manual is for users of ControlLogix Gateway products. It:
• presents you with the basic information you need to get the example
applications up and running
• provides “memory jogger” information, such as routing link numbers
• includes high-level procedures with references to other manuals for
specific details
Publication 1756-6.5.13 - September 1999
P-2
Where to Find More
Information
For information about:
the ControlLogix Ethernet Communication
Interface Module
the ControlLogix Data Highway Plus
Communication Interface Module
the ControlLogix ControlNet Bridge Module
the ControlLogix Chassis
ControlLogix power supplies
PLC-5 programmable controllers
ControlLogix Gateway Configuration Software
PC communication interface cards
RSLogix5 programming software
RSLinx Lite
grounding and wiring Allen-Bradley
programmable controllers
TCP/IP protocol and networking in general
current Allen-Bradley documentation,
including ordering instructions
terms and definitions
Refer to the following publications for help with the ControlLogix Gateway
system:
See this publication:
ControlLogix Ethernet Communication Interface Module
Installation Instructions
ControlLogix Ethernet Communication Interface Module
User Manual
ControlLogix Data Highway Plus Communication Interface
Module Installation Instructions
ControlLogix Data Highway Plus Communication Interface
Module User Manual
ControlLogix ControlNet Bridge Installation Instructions
ControlLogix ControlNet Bridge User Manual
ControlLogix Chassis Installation instructions
ControlLogix Power Supplies Installation Instructions
Enhanced PLC-5 Programmable Controller Quick Start
ControlNet PLC-5 Programmable Controller Quick Start
ControlNet PLC-5 Programmable Controller User Manual
Ethernet PLC-5 Programmable Controller Quick Start
Enhanced Ethernet PLC-5 Programmable Controller
User Manual
ControlLogix Gateway Configuration Software User Manual
1784-KTX Communication Interface Card User Manual
Allen-Bradley Publication Index
(for your specific communication interface card)
Getting Results With RSLogix5
RSLinx Lite User’s Guide
Allen-Bradley Programmable Controller Wiring and
Grounding Guidelines
Comer, Douglas E., Internetworking with TCP-IP, Volume 1:
Protocols and Architecture, 2nd ed. Englewood Cliffs,
N.J.:Prentice-Hall, 1995. ISBN 0-13-216987-8.
Tannebaum, Andrew S. Computer Networks, 2nd ed.
Englewood Cliffs, N.J.: Prentice-Hall, 1989. ISBN
0-13-162959-X.
Allen-Bradley Publication Index
Publication number:
1756-5.3
Allen-Bradley Industrial Automation Glossary
AG-7.1
1756-6.5.1
1756-5.4
1756-6.5.2
1756-5.32
1756-6.5.3
1756-5.2
1756-5.1
1785-10.4
1785-10.7
1785-6.5.22
1785-10.5
1785-6.5.12
1756-6.5.7
1784-6.5.22
SD499
9399-RL53GR
9399-WAB32LUG
1770-4.1
n/a
n/a
SD499
Many of these manuals are available online from the Automation
Bookstore, http://www.theautomationbookstore.com.
Publication 1756-6.5.13 - September 1999
P-3
Common Techniques Used in
This Manual
The following conventions are used throughout this manual:
• Bulleted lists provide information, not procedural steps.
• Numbered lists provide sequential steps or hierarchical information.
• Text in bold font indicates words or phrases you should type,
programming windows, and menu selections.
We use this symbol to call attention to helpful information.
EXAMPLE
We use this symbol to call attention to information you
need to complete the example applications.
• Text in Italic font preceded by numerals like this
should complete (see the following figure).
represents tasks you
• Pictures of keys and/or screens represent the actual keys you press or the
screens you use (see the following figure).
&RPSOHWHWKHLQVWUXFWLRQVLQVHTXHQWLDORUGHU
Start the software:
a. From the Start menu, select Programs.
b. Select Rockwell Software > RSLinx > RSLinx.
Configure the drivers:
a. From the Communications menu, select Configure Drivers.
b. Select the 1784-KTX(D)/PCMK driver and click on Add/New.
Enter the following configuration:
Device Type:
KTX(D)
DH+
Network:
Station Name:
RSLinx
Station Number:
0
D700
*Board Address:
None
*Interrupt:
DH+ Speed
57.6K
* (must match switch settings on card)
\RXHQWHUWKLVLQIRUPDWLRQ
RQWKLVVFUHHQ
Publication 1756-6.5.13 - September 1999
P-4
Rockwell Automation Support
Rockwell Automation offers support services worldwide, with over 75
sales/support offices, 512 authorized distributors, and 260 authorized
systems integrators located throughout the United States alone, plus
Rockwell Automation representatives in every major country in the world.
Local Product Support
Contact your local Rockwell Automation representative for:
• sales and order support
• product technical training
• warranty support
• support service agreements
Technical Product Assistance
If you need to contact Rockwell Automation for technical assistance, call
your local Rockwell Automation representative.
Your Questions or Comments about This Manual
If you find a problem with this manual, please notify us of it on the enclosed
Publication Problem Report (at the back of this manual).
If you have any suggestions about how we can make this manual more
useful to you, please contact us at the following address:
Rockwell Automation, Allen-Bradley Company, Inc.
Control and Information Group
Technical Communication
1 Allen-Bradley Drive
Mayfield Heights, OH 44124-6118
Publication 1756-6.5.13 - September 1999
Table of Contents
Chapter 1
Overview
About the Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What You Need to Do . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Understanding How Routing Tables Are Used . . . . . . . . . . . . . .
1-1
1-2
1-2
1-3
Chapter 2
Set Up the Hardware
Set Up the Personal Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Install the 1784-KTX Card . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Install the Ethernet Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Configure the PLC-5 Processors . . . . . . . . . . . . . . . . . . . . . . 2-3
Install and Ground Each Chassis . . . . . . . . . . . . . . . . . . . . . . 2-4
Install the ControlLogix Power Supply . . . . . . . . . . . . . . . . . 2-5
Ground the Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Connect Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Install the Communication Modules. . . . . . . . . . . . . . . . . . . . . . . 2-7
Install the Data Highway Plus Communication Modules . . . 2-7
Install the Ethernet Communication Modules . . . . . . . . . . . 2-10
Install the ControlNet Communication Modules . . . . . . . . . 2-12
Chapter 3
Set Up the Software
Install the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Configure the Communication Drivers . . . . . . . . . . . . . . . . . . . . 3-2
Configuring the Example Applications . . . . . . . . . . . . . . . . . . . . 3-2
Chapter 4
Enter the Basic Ladder Program Start RSLogix5 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Configure the Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Enter the Ladder Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Save the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Chapter 5
Initiate DH+ to DH+
Communication Via a Single
Gateway Module
What You Need To Do . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify the 1756-DHRIO Module Node Addresses . . . . . . . . . . .
Verify the KTX Driver Configuration . . . . . . . . . . . . . . . . . . . . .
Test the KTX Driver and System Hardware Setup . . . . . . . . . . .
Configure the Routing Table in the 1756-DHRIO Module . . . . .
Test the Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1
5-1
5-1
5-2
5-3
5-5
Publication 1756-6.5.13 - September 1999
ii
Chapter 6
Initiate DH+ to DH+
Communication Via Two
Gateway Modules
What You Need To Do . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify the 1756-DHRIO Module Node Addresses. . . . . . . . . . . .
Verify the KTX Driver Configuration . . . . . . . . . . . . . . . . . . . . .
Test the KTX Driver and System Hardware Setup. . . . . . . . . . . .
Configure the Routing Table in the 1756-DHRIO Modules. . . . .
Test the Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1
6-1
6-1
6-2
6-3
6-6
Chapter 7
Initiate Ethernet to DH+
Communication
What You Need To Do . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify the KTX Driver Configuration . . . . . . . . . . . . . . . . . . . . .
Test the KTX Driver and System Hardware. . . . . . . . . . . . . . . . .
Configure the Communication Modules. . . . . . . . . . . . . . . . . . . .
Connect to the PLC-5/40C Processor . . . . . . . . . . . . . . . . . . . . . .
7-1
7-1
7-2
7-3
7-6
Chapter 8
Initiate ControlNet to
ControlNet Communication
What You Need To Do . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify the Communication Module Node Addresses . . . . . . . . . .
Verify the PLC-5/40C Processor Node Addresses . . . . . . . . . . . .
Verify the KTX Driver Configuration . . . . . . . . . . . . . . . . . . . . .
Test the KTX Driver and System Hardware Setup. . . . . . . . . . . .
Routing Table Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Edit the Message Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test the Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-1
8-2
8-2
8-2
8-2
8-3
8-3
8-6
Chapter 9
What You Need To Do . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Verify the Communication Driver Configurations . . . . . . . . . . . . 9-1
Test the KTX Diver and System Hardware Setup . . . . . . . . . . . . 9-2
Configure the Communication Modules in the Left Chassis . . . . 9-3
Configure the Communication Modules in the Right Chassis . . . 9-8
Test the Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14
Chapter 10
Initiate ControlNet to DH+
Communication With an
Ethernet Backbone
Publication 1756-6.5.13 - September 1999
What You Need To Do . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Verify the Communication Driver Configuration. . . . . . . . . . . . 10-1
Test the KTX Driver and System Hardware Setup. . . . . . . . . . . 10-2
Configure the Communication Modules in the Left Chassis . . . 10-3
Configure the 1756-ENET Module in the Right Chassis . . . . . . 10-8
Test the Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10
iii
Chapter 11
Troubleshoot the System
Verify the Module Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verify the Communication Links . . . . . . . . . . . . . . . . . . . . . . . .
Verify the Routing Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If All Else Fails. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-1
11-2
11-2
11-2
Index
Publication 1756-6.5.13 - September 1999
Chapter
1
Overview
This manual is designed to provide you with enough information to get your
ControlLogix Gateway system up and running. Use this manual if you are
knowledgeable about ControlLogix Gateway products, but need
information about integrating the products in a system.
The information provided is an overview; for more detailed instructions
about particular tasks, see the appropriate product documentation. We have
provided a listing of related documentation in the preface.
About the Applications
This manual presents six example applications in which you initiate
communication as follows:
• from one DH+ network to another DH+ network using a single
communication card
• from one DH+ network to another DH+ network using two
communication cards
• from a DH+ network to an Ethernet network
• from one ControlNet network to another ControlNet network
• from one DH+ network to another DH+ network across an Ethernet
network
• from a ControlNet network to a DH+ network across an Ethernet
network
Publication 1756-6.5.13 - September 1999
1-2
Overview
What You Need to Do
Here’s an example of the type of system you’ll be creating:
Set up the hardware
(Chapter 2)
ControlLogix Gateway
Set up the software
(Chapter 3)
DH+ network
Enter the basic ladder program
(Chapter 4)
ControlNet network
Ethernet network
ControlNet
PLC-5 processor
DH+ PLC-5 processor
Configure and run the example applications
(Chapters 5, 6, 7, 8, 9, and 10)
PC with
RSLinx software
Troubleshoot the system
(Chapter 11)
System Components
We used the following main components to set up our example applications:
Quantity: Product Name:
Catalog Number:
Series
Firmware
Revision:
Hardware
2
ControlLogix DHRIO Communication Module
1756-DHRIO
B
2.17
2
ControlLogix Ethernet Communication Module
1756-ENET
A
1.16
2
ControlLogix ControlNet Communication Module
1756-CNBR, ( or -CNB)
A
1.19
2
ControlLogix chassis
1756-A4, (or -A7, -A13, -A13, -A17)
A
-
2
ControlLogix power supply
1756-PA72, -PB72
A
-
2
PLC-5 processor, ControlNet version
1785 -L40C
F or above
-
1
Data Highway Plus Communication Interface Module
1784-KTX, -KTXD
-
-
1
Ethernet card
any commercial variety
-
-
1
personal computer that supports RSLogix software
any appropriate model
-
-
Software
1
RSLogix5 programming software
9324-RL5300END
-
3.21
1
RSLinx software (RSLinx Lite comes with 1756-GTWY)
9355-WAB, -WABOEM, -WABC
-
2.10
1
ControlLogix Gateway configuration software
1756-GTWY
-
1.8
Publication 1756-6.5.13 - September 1999
Overview
Understanding How Routing
Tables Are Used
1-3
In some of the example applications, you will need to use routing tables to
route messages between the PLC-5/40C processors if you include a
1756-DHRIO module in the path.
Important: You only need to create a routing table if the message path
includes a 1756-DHRIO module. Ethernet and ControlNet
modules do not require routing tables; however, if a message
path contains a mix of Ethernet, ControlNet, and DH+ network
segments, you must assign each of the network segments in the
path (including ControlNet and Ethernet network segments) a
link number.
Routing tables are stored in 1756-DHRIO modules. Each table contains all
of the “links” (i.e., network segments) in the message path from the source
of the message to the destination of the message. You assign a unique link
number to each of the network segments in the path. Link numbers range
from 1-199.
Important: Do not confuse link numbers with module port numbers or
node numbers. You configure link numbers using software
when you configure the system.These numbers appear only in
1756-DHRIO routing tables. Module port numbers are fixed for
ControlLogix Gateway modules as follows:
1756-DHRIO Modules:
Port Number:
Port:
1
backplane
2
channel A
3
channel B
1756-CNB Modules
Port Number:
Port:
1
backplane
2
either of the two ControlNet media ports
1756-ENET Modules
Port Number:
Port:
1
backplane
2
either of the two Ethernet media ports
In the example applications, you set module node numbers by using the
hardware switches on the 1756-CNB or -CNBR and on the 1756-DHRIO
modules.
Publication 1756-6.5.13 - September 1999
Chapter
2
Set Up the Hardware
In this chapter, you’ll set up a basic ControlLogix Gateway system that
contains all of the main components you’ll need to complete each example
application. In the following chapters, you’ll modify the connections within
this system to initiate various types of communication.
Here’s an example of the type of system you’ll set up.
Set up the personal computer
(page 2-2).
ControlLogix Gateway
Configure the PLC-5 processors
(page 2-3).
DH+ network
Install and ground each chassis
ControlNet network
Ethernet network
(page 2-4).
Install the power supply (page 2-5).
Install the communication modules
(page 2-7).
ControlNet
PLC-5 processor
DH+ PLC-5 processor
PC with
RSLinx software
Keep in mind that we’ve set up this system to illustrate the example
applications. You may need to set up your system differently depending on
your particular application.
Look for this symbol EXAMPLE for specific information about how to set up
your system to complete the example applications.
Publication 1756-6.5.13 - September 1999
2-2
Set Up the Hardware
Set Up the Personal Computer
3456
3456
01
EF 2
01
EF 2
3456
KTX Card
789A
BCD
789A
BCD
789A
BCD
01
EF 2
BCD
3456
SW3 SW4
789A
Install the 1784-KTX Card
Set the interrupt jumpers on the communication
card (IRQ5 in this example).
Set the switches on the card.
01
EF 2
CH2 CH1
(D700 in this example)
Remember to record the 1784-KTX address:
Channel 1 Address:_________________________
789A
01
EF 2
01
EF 2
D
3456
SW4
789A
BCD
(shown in IRQ5 position)
SW3
BCD
3
4
5
7
9
10
11
12
15
3456
CH1
Insert the communication interface card into a
vacant 16-bit ISA or EISA expansion slot and
tighten the screw to secure the card.
7
Channel 1 Address
shown in D700:
position
For more information, see the KTX
Communication Interface Card User Manual,
publication number 1784-6.5.22.
Install the Ethernet Card
Verify that your PC has an Ethernet card installed. If it does not, install any
commercial variety. Make sure the Ethernet card has a unique IP address to
prevent conflicts with other hardware. Verify also that you have assigned a
subnet address. Then connect the Ethernet card to a hub. See page 3-2 for
more details.
Publication 1756-6.5.13 - September 1999
Set Up the Hardware
2-3
Configure the PLC-5 Processors
Define the DH+ station address of channel 1A by
setting switch assembly SW-1 on the back of the
processor. (See the side of the processor if you want
to use another address.)
Locking Bar
side view of processor
Lift Ejector Tab
PLC-5/40C Processor
Battery
Connector
side view
down
230 Kbaud
up
57.6 Kbaud
Battery
Cover
Card Guides
Battery
The 1756-DHRIO module’s DH+ ports
currently support 57.6 Kbaud only, so
set switch 7 in the “up” position.
EXAMPLE To complete the example applications set the
DH+ node address of one processor to node 10
and the other processor to node 1.
Set the controlNet network addresses using the two
ControlNet PLC-5 processor’s NET address = 1
10-digit rotary switches on top of the module.
20
30
10
EXAMPLE To complete the example applications in chapters 8
and 10, set the ControlNet address of one processor
to node 1 and the other processor to node 2.
2
40
00
50
90
60
80
70
3
1
4
0
5
9
6
8
7
Set the backplane switches on the I/O chassis for the
PLC-5/40c processors.
EXAMPLE Put switches 5 and 6 in the “on” position, then put all
of the others in the “off” position. You need to set these
switches so that you can download the ladder logic
program in the example applications.
Install the processor module.
Install the PLC-5 processor in an appropriate I/O chassis.
If you need help, see the ControlNet 1.5 PLC-5
Programmable Controller User Manual, publication
1785-6.5.22.
Publication 1756-6.5.13 - September 1999
2-4
Set Up the Hardware
Install and Ground Each Chassis
Enclosure
Grounding Electrode Conductor
Ground Bus
To Grounding Electrode System
Functional Ground
Keep wire length as
short as possible.
Safety Ground
Safety Ground Terminal Stud
To Ground Bus
M4 or M5 (#10 or #12)
flat or star washer
Stationary Nut
Chassis Mounting Tab
Nut with Captive
Star Washer
Safety Ground
Equipment Grounding Conductor:
Ground Lug with 2.1mm (14 AWG) wire
to Ground Bus
Publication 1756-6.5.13 - September 1999
M4 or M5 (#10 or #12) Phillips
screw and flat or star washer
(or SEM screw)
To Ground Bus
Functional Ground
Equipment Grounding
Conductor: ground lug with
8.3mm (8 AWG) wire
Set Up the Hardware
2-5
Install the ControlLogix
Power Supply
If you are using a series A power supply only, set
the line voltage jumper as shown on page 3 of the
ControlLogix Power Supplies Installation
Instructions, publication number 1756-5.1.
Align the circuit board of the power supply with the
card guides on the left side of the chassis.
Slide the power supply in until it is flush with the
chassis.
Fasten the power supply to the chassis using a
screwdriver.
Ground the Power Supply
Wiring Terminal Block
To Ground Bus
Safety Ground Terminal Stud
Stationary Nut
Equipment Grounding Conductor: ground
lug with 2.1mm (14 AWG) wire Safety
Ground From Power Supply
Equipment Grounding Conductor: ground lug
with 2.1mm (14 AWG) wire Safety Ground from
Chassis to Ground Bus
Nut With Captive Washer
Important:Tighten the nut on the safety ground terminal stud to a torque of 12 inch-pounds.
Publication 1756-6.5.13 - September 1999
2-6
Set Up the Hardware
Connect Power
1756-PA72
L1 - high side of line power
L2/N - low side of line power
!
ATTENTION: Make sure the
chassis is mounted and all panel
fabrication is complete before you
remove the protective label. This
label protects the power supply
from metal shavings falling inside
and damaging it during operation.
AC Input Power Supply
1756-PB72
+ high side of line power
– low side of line power
After you connect power,
remove the protective label.
DC Input Power Supply
Publication 1756-6.5.13 - September 1999
Use #14 AWG 75C copper wire.
Tighten the terminals to a torque of
7 inch-pounds.
Set Up the Hardware
Install the
Communication Modules
2-7
To complete all of the example applications, you will need to install two of
each of the following modules.
Install the Data Highway Plus Communication Modules
Set the network type and node address switches.
Important: For the series A release of the module, you must select the DH+
network type (position 0) for both channels.
1 2 3
4
0
7 6 5
1 2 3
4
0
7 6 5
Network Type Switches
(behind cover)
This example shows both
channels set for DH+.
1 2 3
4
0
7 6 5
1 2 3
4
0
7 6 5
Switch 1
Channel A
Network Type
Channel B
Network Type
Switch 6
To Specify Network Type Set Switches
DH+
1
Illegal
2-7
DH+
0
RIO Scanner
1
Illegal
2-7
This example shows channel
A node address at 10 and
channel B at 24.
1 2 3
4
0
7 6 5
Channel B Address
Shown in 24 Position
Switch3
(1s)
1 2 3
4
0
7 6 5
Switch 4
(10s)
1 2 3
4
0
7 6 5
Switch 5
(10s)
1 2 3
4
0
7 6 5
1 2 3
4
0
7 6 5
1 2 3
4
0
7 6 5
1 2 3
4
0
7 6 5
1 2 3
4
0
7 6 5
4
Switch 2
(10s)
Channel
B
0
RIO Scanner
Channel A Address
Shown in 10 Position
Channel
A
2
0
1
Node Address Switches
(on bottom of module)
S
You can install the modules into any slot, but
you need to remember the slot into which you
place each module
EXAMPLE
For each channel node address, you can select
within the range of 00-77. This example shows
channel A node address at 10 and channel B at 24.
For the example applications, set both channels to DH+.
Set channel A to node address 3 and channel B to node address 4.
Publication 1756-6.5.13 - September 1999
2-8
Set Up the Hardware
Install the module.
Install the module in any slot.
EXAMPLE
To complete the example applications
as described in the following chapters,
modify your system as shown in the
system diagram on the first page of
each example chapter (chapters 5
through 10). To complete the first
example, install the 1756-DHRIO
module in slot 1.
Align the circuit board with top and
a bottom
guides in the chassis
Slide the module into the chassis.
b Make
sure the module properly
connects to the chassis backplane.
!
ATTENTION: When you insert or remove a
module while backplane power is applied, an
electrical arc may occur. An electrical arc can
cause personal injury or property damage by:
– sending an erroneous signal to your system’s
actuators causing unintended machine
motion or loss of process control.
– causing an explosion in a hazardous
environment.
Repeated electrical arcing causes excessive wear
to contacts on both the module and its mating
connector. Worn contacts may create electrical
resistance that can affect module operation.
Publication 1756-6.5.13 - September 1999
The module is fully installed when it is
c flush
with the power supply or other
installed modules.
Set Up the Hardware
2-9
Wire the connectors to the module channels.
Wiring Label
Pin Assignments for
Channel A and B DH+ Connectors
Pin Number:
Description:
1
Clear
6 3 1
7 4 2
8 5
Shield
A
2
Blue
2
1
2
2
B
1
1
RIO/DH+ Port Pinout
1
2
DH+ CLR SHLD Blue
RIO Blue SHILD CLR
1756-DHRIO
Connect the module to the 1784-KTX card in the PC workstation.
a
Important: For hazardous locations, use a 1784-CP13
cable (or equivalent locking connector) for
the connection.
b
Publication 1756-6.5.13 - September 1999
2-10
Set Up the Hardware
Install the Ethernet Communication Modules
Install the modules.
Install the module in any slot.
EXAMPLE
To complete the example applications
as described in the following chapters,
modify your system as shown in the
system diagram on the first page of
each example chapter (chapters 5
through 10). To complete the first
example, install the 1756-ENET
module in slot 2.
Align the circuit board with top and
a bottom
guides in the chassis.
Slide the module into the chassis.
b Make
sure the module properly
connects to the chassis backplane.
The module is fully installed when it is
c flush
with the power supply or other
installed modules.
Publication 1756-6.5.13 - September 1999
Set Up the Hardware
2-11
Connect to the Ethernet network.
For this connection, you can use either a twisted pair cable connection
(RJ45 connector) to a hub or an AUI cable (we recommend Allen-Bradley
catalog numbers 1756-TC02 or TC15) connected to a transceiver for media
other than twisted pair (i.e., fiber or thickwire).
Use either an AUI . . .
Protective Ground
9-Ctrl IN Ckt B
10-Data OUT Ckt B
11-Data OUT Ckt B
12-Data OUT Ckt B
13-Voltage Plus
14-Voltage Shield
or an RJ45 connector . . .
1
TD+
1-Ctrl IN Ckt Shield
2-Ctrl IN Ckt A
3-Data OUT Ckt A
4-Data IN Ckt Shield
5-Data IN Ckt A
6-Voltage Comm
2
TD-
3
RD+
4
NC
5
NC
6
RD-
7
NC
8
NC
7-Ctrl OUT Ckt A
15-Ctrl OUT Ckt B
8-Ctrl OUT Ckt Shield
8
1
For more detailed information, see the ControlLogix Ethernet
Communication Interface Module Installation instructions, publication
number 1756-5.3, or chapter 2 of the ControlLogix Ethernet
Communication Module User Manual, publication 1756-6.5.1.
Publication 1756-6.5.13 - September 1999
2-12
Set Up the Hardware
Install the ControlNet Communication Modules
Set the node address switches on the 1756-CNBR or -CNB module.
top of module
front of module
side of module
This modules’s network
address is 23.
Valid addresses are 01 to 99.
Install the module.
a
b
!
EXAMPLE
ATTENTION: Do not force the module into the
backplane connector. If you cannot seat the module
with firm pressure, check the alignment. Forcing the
module into the backplane can damage the backplane
connector or the module.
To complete the example applications as described in the following chapters, modify your system as shown in the
system diagram on the first page of each example chapter (chapters 5 through 10). To complete the first example,
install the 1756-ENET module in slot 2.
Publication 1756-6.5.13 - September 1999
Set Up the Hardware
2-13
Connect the module to the network.
The following figure shows an example of how to connect to the
ControlNet network.
1756-CNBR
(in 1756-A4 chassis)
ControlNet node
ControlNet link
ControlNet node
Publication 1756-6.5.13 - September 1999
Chapter
3
Set Up the Software
Install the software (page 3-1).
Configure the communication
cards (page 3-2).
Start the configuration software
(page 3-2).
Install the Software
Install RSLogix5, RSLinx, and ControlLogix Gateway Configuration
software as follows:
To use these software packages, you need:
-computer with a Pentium 166 MHz or greater processor
-at least 32MBytes of RAM
Install the software:
For each of the three software packages:
a. From the Start menu, select Run.
b. Enter a:\setup.
-hard drive with adequate free space
(25 MBytes or greater)
- 3.5 inch, 1.44 MByte disk drive
-VGA or higher-resolution adapter/monitor
(640x480, 800X600, 1024x786 modes supported)
-Windows-supported pointing device
-Microsoft Windows NT version 4.0 or later
-RSLinx version 2.10 or later
(included with catalog number 1756-GTWY)
-an Ethernet card
Publication 1756-6.5.13 - September 1999
3-2
Set Up the Software
Start the software:
Configure the
Communication Drivers
a. From the Start menu, select Programs.
b. Select Rockwell Software > RSLinx > RSLinx.
c. From the Communications menu, select Configure Drivers.
Configure the KTX driver:
a. Select the 1784-KT/KTX(D)/PKTX(D) driver from
the pull-down list and click on Add/New.
b. When prompted for a name for the new driver, select
the default name assigned by the system, i.e.,
AB_KT-1.
c. Enter the following configuration:
KTX(D)
DH+
RSLinx
0
D700
Device Type:
Network:
Station Name:
1
Station Number:
Board Address:
1
Interrupt:
DH+ Speed
1
None
57.6K
Must match switch settings on card.
Configure the Ethernet driver:
a. From the Communications menu, select Configure
Drivers.
b. Select Remote Devices via Linx Gateway as the
driver and click on Add/New.
c. Enter the following configuration:
Device Name
IP Address
or Host name
1Server’s
1
TCP-1 (default assigned)
130.130.130.2
This is the IP address of the 1756-ENET
module, not the PC running RSLinx.
If you are setting up your own local Ethernet network, you can use any IP address you wish. If your PC
workstation is already connected to a network, you must obtain a unique IP address from your network
administrator or disconnect your PC from the network to avoid a conflict.
Configuring the
Example Applications
Publication 1756-6.5.13 - September 1999
In the following chapters you will use the Gateway Configuration software
with RSLinx to set specific configurations for the example applications. For
more information on configuring with RSLinx/RSLinx Lite refer to
publication 9399-WAB32LUG or visit the Rockwell Software website at
http://rsi-webcorp.software.rockwell.com.
Chapter
4
Enter the Basic Ladder Program
Start RSLogix5 software
(page 4-1).
Configure the processor
In this chapter, you enter a PLC-5 ladder program that sends the value of the
processor’s internal seconds timer using a message instruction. You will use
this message instruction in the example applications to communicate
between processors. We will show you how to set up and modify the message
instruction for each application in the following chapters.
(page 4-1).
Enter the ladder logic (page 4-2).
Save the program (page 4-2).
Start RSLogix5 Software
From the Start menu, select Programs.
Select Rockwell Software > RSLogix5 English.
OR
Double click on:
Configure the Processor
When you start a new program in RSLogix5 software, you need to
configure the processor to specify processor type, communication settings,
etc. For information about how to do this, see Getting Results With
RSLogix5, publication number 9399-RL53GR.
Publication 1756-6.5.13 - September 1999
4-2
Enter the Basic Ladder Program
Enter the Ladder Logic
Enter the following ladder logic.
Open a new program file.
Use the options on the user
toolbar to enter the example
program.
With RXLogix5 software:
click here
to create a
new rung
use these tabs to display
different categories of instructions
The MSG configuration entered in the Setup Screen will vary depending
upon the application example.
Save the program as “example.rsp”, then minimize the RSLogix5 software.
Save the Program
To save the program, you must enter a dummy configuration in the
Setup Screen so that RSLogix5 software can verify the project. See
page 5-6 for an example.
For more information about entering ladder logic, see the PLC-5
Programming Software Instruction Set Reference Manual, publication
number 1785-6.1 or Getting Results With RSLogix5, Rockwell
Software publication number 9399-RL53GR.
Publication 1756-6.5.13 - September 1999
Chapter
5
Initiate DH+ to DH+ Communication Via a
Single Gateway Module
What You Need To Do
In this application you send a message from one PLC-5/40C processor to
another PLC-5/40C processor. Change your existing system to the
following configuration.
Verify the 1756-DHRIO module
1756-DHRIO Module
(in slot 1)
node addresses (page 5-1).
Verify the 1784-KTX driver
node 3
(channel A)
node 4
(channel B)
configuration (page 5-1).
Test the KTX driver (page 5-2).
DH+ Network
DH+ Network
(link 100)
DH+ Network
(link 101)
Edit the default routing table
MSG
(page 5-3).
Test the application (page 5-5).
PC Workstation
(DH+ node 0)
PLC-5/40C Processor
(DH+ node 10)
PLC-5/40C Processor
(DH+ node 1)
In this example, you send a PLC-5 Typed Write message from the
PLC-5/40C processor at DH+ node 10, link 100, through the 1756-DHRIO
module (channel A to channel B), to the PLC-5/40C processor at DH+
node 1, link 101.
Verify the 1756-DHRIO Module Node Addresses
Verify that the node addresses for the 1756-DHRIO module are 3 and 4 as
shown.
Verify the KTX Driver Configuration
Verify that the KTX driver is configured as directed on page 3-2.
Publication 1756-6.5.13 - September 1999
5-2
Initiate DH+ to DH+ Communication Via a Single Gateway Module
Test the KTX Driver and System Hardware Setup
Start the RSLinx software.
From the Communications menu in RSLinx, select RSWho:
a. Select the 1756-DHRIO module from the AB_KT-1 driver. Drill down
the backplane until you see the channel A and channel B configurations
displayed. Expand the tree under the driver. You should see a display
similar to that below (channel A configured as node 3, channel B
configured as node 4, etc.):
b. If you do not see the correct display, check the faceplate indicators to
ensure the DHRIO module is functioning properly. Verify that all
modules and cables are properly connected and that switch settings are
correct. See page 2-7.
If you are still experiencing difficulty verify that the 1784-KTX
driver is configured properly. Make sure there is no conflict with
other hardware in your PC workstation.
Minimize RSLinx.
Publication 1756-6.5.13 - September 1999
Initiate DH+ to DH+ Communication Via a Single Gateway Module
5-3
Configure the Routing Table in the 1756-DHRIO Module
Start the configuration software:
a. From the Windows NT Start menu, select Programs.
b. Select ControlLogix Gateway > 1756gtwy.
Edit the routing table:
a. From the File menu in the configuration software, select Browse
Network. RSLinx starts.
b. Select the AB_KT_1 Data Highway Plus driver and double-click on the
1756-DHRIO module.
c. Select the Routing Table Configuration tab.
If you have previously configured any routing tables, click on Restore
Defaults to remove any previous configuration and restore the default
values.
Publication 1756-6.5.13 - September 1999
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Initiate DH+ to DH+ Communication Via a Single Gateway Module
d. Double-click on the 1756-DHRIO module and enter the following link
IDs:
Channel A
Channel B
Link 100
Link 101
e. Click on OK.
The routing table configuration should now appear as follows:
f. Click on Apply to download the routing table to the 1756-DHRIO
module.
It is not necessary to save the configuration to a file.
Verify the configuration:
a. From the Communications menu in RSLinx, select RSWho.
b. Select the AB_KT_1, Data Highway Plus driver and drill down the
backplane.
c. Double-click on CH B, Data Highway Plus.
You should now see the PLC-5/40C processor at node 1 connected to
channel B (node 4) of the DH+.
If the PLC-5/40C processor does not appear, then verify the switch settings
in the 1756- DHRIO module and PLC-5/40C processors and check that the
cables are properly connected.
If you are still experiencing difficulty, reconfigure the routing table as
described previously.
Publication 1756-6.5.13 - September 1999
Initiate DH+ to DH+ Communication Via a Single Gateway Module
5-5
Test the Application
To test the application, send a message from one PLC-5/40C processor to
the other PLC-5/40C processor.
Start the RSLogix5 software:
a. From the Windows NT Start menu, select Programs.
b. Select Rockwell Software > RSLogix5 English
OR
Double-click on:
Load the example program:
a. From the File menu, open the program “example.” See page 4-2.
b. In the MSG instruction, double-click on Setup Screen.
This message writes the value of the
seconds clock (S:23) in the PLC-5/40C at
node 10 into data file N7:0 of the PLC-5/40C
processor at node 1.
Publication 1756-6.5.13 - September 1999
5-6
Initiate DH+ to DH+ Communication Via a Single Gateway Module
c. Enter the following configuration.
This is the node number of the
1756-DHRIO module on the local link.
This is the DH+ node number
of the target PLC-5/C processor
configured in chapter 2.
This PLC-5:
Communication Command
Data Table Address
Size in Elements
Port Number
PLC-5 Typed Write
S:23
1
1A
Target Devices:
Data Table Address
Local DH+ Node
Local / Remote
Remote Link Type
Remote Station Address
Remote Bridge Link ID
N7:0
3
Remote
Data Highway
1
101
This is the link ID that you
assigned in the
configuration software
d. Close the Setup Screen.
Download the program to the PLC-5/40C processor at DH+ node 10:
a. From the Comms menu in RSLogix5 select System Comms
The System Options window will appear with the System
Communications tab open.
b. Select the AB_KT-1 Driver and click on Who Active.
Publication 1756-6.5.13 - September 1999
Initiate DH+ to DH+ Communication Via a Single Gateway Module
5-7
The RSWho window will appear.
c. Drill down the tree and double-click on the PLC-5/40C processor at
node 10.
d. When the System Communications tab reappears, click on the
Download button.
Disregard any warnings about Control Net devices.
e. Save the program if prompted.
f. Go Online and change the processor mode to Run.
Verify the communications to the PLC-5/40C processor at node 1:
a. Start a new session of RSLogix5 software.
b. From the Comms menu in RSLogix5, select System Comms.
Publication 1756-6.5.13 - September 1999
5-8
Initiate DH+ to DH+ Communication Via a Single Gateway Module
The System Options window will appear with the System
Communications tab open.
c. Select AB_KT-1 as the Driver and click on Who Active.
The RSWho window will appear.
d. Drill down the tree and double-click on the PLC-5/40C processor at
node 1.
e. When the System Communications tab reappears, click on the Online
button.
Publication 1756-6.5.13 - September 1999
Initiate DH+ to DH+ Communication Via a Single Gateway Module
5-9
f. If no program is loaded in the PLC-5/40C processor, a pop-up window
will appear with the message “You cannot go Online to DEFAULT
program.” Enter a new processor name of your choice (e.g., “Receiver”)
and click on OK.
• It is not necessary to save the program.
• Disregard any warnings about Control Net devices.
g. Double-click on N7 in the data file list.
You should see the following screen:
Verify that this value is being updated.
When you see N7:0 being updated at one second intervals the message is
being sent successfully from the PLC-5/40C processor at node 10 to the
PLC-5/40C processor at node 1.
Publication 1756-6.5.13 - September 1999
Chapter
6
Initiate DH+ to DH+ Communication Via Two
Gateway Modules
What You Need To Do
In this application, you will establish communication between the two
PLC-5/40C processors over two 1756-DHRIO modules. Change your
existing system to the following configuration.
Verify the 1756-DHRIO module
PC Workstation
(node 0)
node addresses (page 6-1).
Verify the 1784-KTX driver
DH+ Network
(link 102)
1756-DHRIO Module
(in slot 1)
configuration (page 6-1).
Test the KTX driver (page 6-2).
Configure the routing table
node 3
(channel A)
node 4
(channel B)
1756-DHRIO Module
(in slot 3)
node 13
(channel A)
node 14
(channel B)
DH+ Network
DH+ Network
(link 100)
(link 101)
(page 6-3).
MSG
Test the application (page 6-6).
PLC-5/40C Processor
(DH+ node 10)
PLC-5/40C Processor
(DH+ node 1)
In this example, you send a PLC-5 Typed Write message from the
PLC-5/40C processor at DH+ node 10, link 100, through the 1756-DHRIO
module in slot 1, the backplane of the Control Logix chassis, and the
1756-DHRIO module in slot 3 to the PLC-5/40C processor at DH+ node 1,
link 101.
Verify the 1756-DHRIO Module Node Addresses
Verify that the node addresses for the 1756-DHRIO modules are 3 and 4 and
13 and 14, respectively, as shown. Refer to chapter 2 as necessary.
Verify the KTX Driver Configuration
Verify that the KTX driver is configured as directed on page 3-2.
Publication 1756-6.5.13 - September 1999
6-2
Initiate DH+ to DH+ Communication Via Two Gateway Modules
Test the KTX Driver and System Hardware Setup
Start the RSLinx software.
From the Communications menu in RSLinx, select RSWho.
a. Select the AB_KT-1 driver. Drill down until you see the 1756-DHIO
modules in slots 1 and 3 displayed. Expand the view to verify the
channel A and channel B configurations for both modules. You should
see a display similar to that below:
b. If you do not see the correct display, check the faceplate indicators to
ensure the DHRIO modules are functioning properly. Verify that the
modules and cables are properly connected and the switch settings on the
modules are correct. See page 2-7.
If you are still experiencing difficulty verify that the 1784-KTX
driver is configured properly. Make sure there is no conflict with
other hardware in your PC workstation.
Minimize RSLinx.
Publication 1756-6.5.13 - September 1999
Initiate DH+ to DH+ Communication Via Two Gateway Modules
6-3
Configure the Routing Table in the 1756-DHRIO Modules
Start the configuration software:
a. From the Windows NT Start menu, select Programs.
b. Select ControlLogix Gateway > 1756gtwy.
Edit the routing table:
a. From the File menu in the configuration software, select Browse
Network. RSLinx starts.
b. Select the AB_KT_1 Data Highway Plus driver and double-click on the
DHRIO module in slot 1.
c. Select the Routing Table Configuration tab.
d. Double-click on the 1756-DHRIO module and enter the following link
IDs:
Channel A
Channel B
Link 100
Link 0
Since no device is connected to channel B of the 1756 DHRIO
module in slot 1, no link number is necessary. We are using 0,
which is not a valid link ID.
e. Click on OK.
f. Right click on Backplane [Link Undefined] and select Add Module.
Publication 1756-6.5.13 - September 1999
6-4
Initiate DH+ to DH+ Communication Via Two Gateway Modules
The following pop-up window will appear.
g. Select another 1756-DHRIO module and click on OK. The Add Module
pop-up window will appear.
h. Add the 1756-DHRIO module in slot 3 to the routing table by entering
the following information. Then click on OK:
Slot Number
Channel A
Channel B
3
Link 102
Link 101
i. The routing table configuration should now appear as shown below:
j. Click on Apply.
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Initiate DH+ to DH+ Communication Via Two Gateway Modules
6-5
The following pop-up window will appear.
k. Click on Select All, then Apply to download the routing table to both of
the 1756-DHRIO modules.
It is not necessary to save the configuration to a file.
Verify the configuration:
a. From the Communications menu in RSLinx, select RSWho.
b. Select the AB_KT_1 Data Highway Plus driver and drill down the
backplane.
You should now see the PLC-5/40C processor at node 10 connected to
channel A (node 3) of the DHRIO+ module in slot 1 and the PLC-5/40C
processor at node 1 connected to channel B (node 14) of the DHRIO+
module in slot 3.
Publication 1756-6.5.13 - September 1999
6-6
Initiate DH+ to DH+ Communication Via Two Gateway Modules
If the PLC-5/40C processors do not appear, then verify the switch settings
in the 1756 DHRIO modules and PLC-5/40C processors and check that the
cables are properly connected.
If you are still experiencing difficulty, reconfigure the routing table as
described previously.
Test the Application
Restore or start the RSLogix5 software:
a. From the Windows NT Start menu, select Programs.
b. Select Rockwell Software > RSLogix5 English
OR
Double-click on:
Load the example program for the PLC-5/40C processor at DH+
node 10:
a. From the File menu, open the program “example.” See page 4-2.
b. In the MSG instruction, double-click on Setup Screen.
This message writes the value of the
seconds clock (S:23) in the PLC-5/40C at
node 10 into data file N7:0 of the PLC-5/40C
processor at node 1.
Publication 1756-6.5.13 - September 1999
Initiate DH+ to DH+ Communication Via Two Gateway Modules
6-7
c. Enter the following configuration.
This is the node number of the
1756-DHRIO module on the local link.
This is the DH+ node number
of the target PLC-5/C processor
configured in chapter 2.
This PLC-5:
Communication Command
Data Table Address
Size in Elements
Port Number
PLC-5 Typed Write
S:23
1
1A
Target Devices:
Data Table Address
Local DH+ Node
Local / Remote
Remote Link Type
Remote Station Address
Remote Bridge Link ID
N7:0
3
Remote
Data Highway
1
101
This is the link ID that
you assigned in the
configuration software
d. Close the Setup Screen.
Download the program to the PLC-5/40C processor at DH+ node 10.
a. From the Comms menu in RSLogix5 select System Comms.
The System Options window will appear with the System
Communications tab open.
b. Select the AB_KT-1 Driver and click on Who Active.
Publication 1756-6.5.13 - September 1999
6-8
Initiate DH+ to DH+ Communication Via Two Gateway Modules
The RSWho window will appear.
c. Drill down the tree and double-click on the PLC-5/40C processor at
node 10.
d. When the System Communications tab reappears, click on the
Download button.
Disregard any warnings about Control Net devices.
e. Save the program if prompted.
f. Go Online and change the processor mode to Run.
Verify the communications to the PLC-5/40C processor at node 1.
a. Start a new session of RSLogix5 software.
b. From the Comms menu in RSLogix5, select System Comms.
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Initiate DH+ to DH+ Communication Via Two Gateway Modules
6-9
The System Options window will appear with the System
Communications tab open.
c. Select the AB_KT-1 Driver and click on Who Active.
The RSWho window will appear.
d. Drill down the tree and double-click on the PLC-5/40C processor at
node 1.
e. When the System Communications tab reappears, click on the Online
button.
Publication 1756-6.5.13 - September 1999
6-10
Initiate DH+ to DH+ Communication Via Two Gateway Modules
f. If no program is loaded in the PLC-5/40C processor, a pop-up window
will appear with the message “You cannot go Online to DEFAULT
program.” Enter a new processor name of your choice (e.g., “Receiver”)
and click on OK.
• Disregard any warnings about Control Net devices.
• It is not necessary to save the program.
g. Double-click on N7 in the data file list.
You should see the following screen:
Verify that this value is being updated.
When you see N7:0 being updated at one second intervals the message is
being sent successfully from the PLC-5/40C processor at node 10 to the
PLC-5/40C processor at node 1.
Publication 1756-6.5.13 - September 1999
Chapter
7
Initiate Ethernet to DH+ Communication
What You Need To Do
In this application, you will establish communication between the PC
workstation and the PLC-5/40C processor bridging across Ethernet and
DH+. Change your existing system to the following configuration.
Verify the communication driver
PC Workstation
(DH+ node 0
Ethernet IP address 130.130.130.1)
configurations (page 7-1).
Test the KTX driver and system
hardware (page 7-2).
DH+ Network
(link 100)
Ethernet Network
node 3
(channel A)
node 4
(channel B)
Configure the communication
modules (page 7-3).
Connect to the PLC-5/40C
1756-DHRIO Module
(in slot 1)
DH+ Network
(link 101)
1756-ENET Module
(in slot 2)
Ethernet IP address 130.130.130.2)
processor (page 7-6).
PLC-5/40C Processor
(node 10)
In this example, you communicate with a PLC-5/40C processor on a DH+
network via an Ethernet gateway.
Important: To establish communication between the PC workstation and
the PLC-5/40C via ethernet, you must first configure the
1756-ENET module. The configuration can be sent to the
1756-ENET module over another network, such as ControlNet.
In this example, you will do the configuration over the DH+
network.
Verify the KTX Driver Configuration
Verify that the KTX driver and ethernet driver are configured as directed on
page 3-2.
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7-2
Initiate Ethernet to DH+ Communication
Test the KTX Driver and System Hardware
Start the RSLinx software.
From the Communications menu in RSLinx, select RSWho:
a. Select the AB_KT-1 driver. Drill down until you see the 1756-DHIO
module in slot 1 and the 1756-ENET module in slot 2. Expand the view
to verify the channel A and channel B configurations. You should see a
display similar to that below:
b. If you do not see the correct display, check the faceplate indicators to
ensure the DHRIO and ENET modules are functioning properly. Verify
that modules and cables are properly connected and that switch settings
on the 1756-DHRIO module are correct. See page 2-7.
If you are still experiencing difficulty, verify that the 1784-KTX
driver is configured properly. Make sure there is no conflict with
other hardware in your PC workstation.
Minimize RSLinx.
Publication 1756-6.5.13 - September 1999
Initiate Ethernet to DH+ Communication
7-3
Configure the Communication Modules
Start the configuration software:
a. From the Windows NT Start menu, select Programs.
b. Select ControlLogix Gateway > 1756gtwy.
Configure the Ethernet module:
a. From the File menu in the configuration software, select Browse
Network. RSLinx starts.
An IP Address is an Ethernet node’s
network address and denotes the network
where the 1756-ENET module is located.
Before you begin, check the IP
address. Make sure your entry is in the
form xxx.xxx.xxx.yyy, where each xxx is a
number between 0-255 and yyy is a
number between 0-254.
b. Select the AB_KT_1 Data Highway Plus driver and drill down the
backplane.
c. Double-click on the Ethernet module.
d. Select the Port Configuration tab and enter the following configuration:
A Subnet Mask identifies the bits of the
internet address that correspond to the
network and subnetwork portions of the
address. Before you begin, retrieve your
subnet mask. Make sure your entry is in
the form xxx.xxx.xxx.yyy, where each xxx
is a number between 0-255 and yyy is a
number between 0-254.
A gateway is a shared connection
between two networks. It consists of
hardware and software which provides
protocol conversions. An Ethernet
Gateway Address is the IP address of the
Ethernet gateway you want the
1756-ENET module to use. Before you
begin, retrieve your Ethernet gateway
address, if you are using one. Make sure
your entry is in the form xxx.xxx.xxx.yyy,
where each xxx is a number between
0-255 and yyy is a number between
0-254.
Bootp (Bootstrap protocol) is used to boot
diskless nodes, such as 1756-ENET. The
Bootp server supplies the IP address,
subnet mask, and Ethernet gateway. In
this example you are providing the IP
address, so make sure Bootp is not
enabled.
Make sure this box is not checked.
Enter this configuration:
IP Address:
Subnet Mask:
Gateway Address:
130.130.130.2
255.255.0.0
0.0.0.0
Make sure that each Ethernet device has a unique IP address.
e. Click on Apply to download the configuration to the module.
Publication 1756-6.5.13 - September 1999
7-4
Initiate Ethernet to DH+ Communication
Configure the routing table in the 1756-DHRIO module:
a. From the File menu in the configuration software, select Browse
Network.
b. Select the AB_KT_1 Data Highway Plus driver and double-click on the
1756-DHRIO module.
c. Select the Routing Table Configuration tab.
If you have previously configured any routing tables, click on Restore
Defaults to remove the configuration and restore the default values.
d. Double-click on the 1756-DHRIO module. Enter the following link IDs
and click on OK.
Channel A
Channel B
Publication 1756-6.5.13 - September 1999
Link 100
Link 101
Initiate Ethernet to DH+ Communication
7-5
The routing table configuration should now appear as shown below:
e. Click on Apply to download the routing table to the 1756-DHRIO
module.
It is not necessary to save the configuration to a file.
Verify the configuration:
a. From the File menu, select Browse Network.
b. Select the TCP-1, Ethernet driver and drill down the backplane.
c. If you continue to drill down you should now see the PLC-5/40C
processor at node 10 connected the Ethernet driver via the backplane and
channel B (node 4) of the DH+.
If the PLC-5/40C processor does not appear, then verify the switch settings
in the 1756 DHRIO module and PLC-5/40C processor and check that the
cables are properly connected.
If you are still experiencing difficulty, reconfigure the routing table and
Ethernet module as described previously.
Publication 1756-6.5.13 - September 1999
7-6
Initiate Ethernet to DH+ Communication
Connect to the PLC-5/40C Processor
Connect to the PLC-5/40C processor at node 10 to upload or download
programs or to go on line with the processor.
Start the RSLogix5 software:
a. From the Windows NT Start menu, select Programs.
b. Select Rockwell Software > RSLogix5 English
OR
Double-click on:
c. From the Comms menu in RSLogix5, select System Comms.
The System Options window will appear with the System
Communications tab open.
d. Select TCP-1 as the Driver and click on Who Active.
Publication 1756-6.5.13 - September 1999
Initiate Ethernet to DH+ Communication
7-7
The RSWho window will appear.
e. Drill down through the TCP-1 Ethernet driver and double-click on the
PLC-5/40C processor.
f. When the System Communications tab reappears, click on the Online
button.
g. If no program is loaded in the PLC-5/40C processor, a pop-up window
will appear with the message “You cannot go Online to DEFAULT
program.” Enter a new processor name of your choice (e.g., “Example”)
and click on OK.
• Disregard any warnings about Control Net devices.
•
It is not necessary to save the program.
You are now online and can program or run the PLC-5/40C processor via
the remote Ethernet link.
Publication 1756-6.5.13 - September 1999
Chapter
8
Initiate ControlNet to ControlNet
Communication
What You Need To Do
In this chapter, you will establish communication between two PLC-5/40C
processors, bridging over two ControlNet networks. Change your existing
system to the following configuration.
Verify the communication module
PC Workstation
(DH+ node 0)
node addresses (page 8-2).
Verify the PLC-5/40C processors’
node addresses (page 8-2).
Verify the KTX driver configuration
(page 8-2).
DH+ node 3
(channel A)
1756-DHRIO Module
(in slot 2)
1756-CNB Module
(in slot 0)
ControlNet node 11
1756-CNB Module
(in slot 3)
ControlNet node 12
ControlNet Network #1
ControlNet Network #2
Test the hardware (page 8-2).
Routing table considerations
(page 8-3).
Edit the message instruction
MSG
(page 8-3).
Test the application (page 8-6).
PLC-5/40C Processor
(ControlNet node 1)
PLC-5/40C Processor
(ControlNet node 2)
In this example, you send a PLC-5 Typed Write message from the
PLC-5/40C processor at ControlNet node 1, network 1, to the PLC-5/40C
processor at ControlNet node 2, network 2.
Note that the multi-hop feature described in this chapter requires series
E/D.1 or F/A.1 processors and RSLogix5 software, version 3.2 or greater.
Publication 1756-6.5.13 - September 1999
8-2
Initiate ControlNet to ControlNet Communication
Verify the Communication Module Node Addresses
Verify that the node addresses for the 1756-CNB modules are 11 and 12 as
shown. Verify that the channel A node address for the 1756-DHRIO module
is 3 as shown.
Verify the PLC-5/40C Processor Node Addresses
Verify that the ControlNet node addresses for the PLC-5/40C processors are
1 and 2 as shown.
Verify the KTX Driver Configuration
In this example application, we use the Data Highway Plus KTX driver to
download the program from the PC workstation to the PLC-5/40C
processor. You can also download the program over ControlNet if you have
a KTCX driver card configured in your PC workstation.
To follow this example, verify that the KTX driver is configured as
described on page 3-2.
Test the KTX Driver and System Hardware Setup
Start the RSLinx software.
From the Communications menu in RSLinx, select RSWho:
a. Select the AB_KT-1 driver. Drill down the backplane until you see the
1756-DHRIO module in slot 1 and the 1756-CNB modules in slot 0 and
slot 3.
b. You should see a display similar to that below:
Publication 1756-6.5.13 - September 1999
Initiate ControlNet to ControlNet Communication
8-3
c. If you do not see the correct display, check the faceplate indicators to
ensure the DHRIO and CNB modules are functioning properly. Verify
that the modules and cables are properly connected and that the switch
settings on the modules are correct. See chapter 2.
If you are still experiencing difficulty verify that the 1784-KTX
driver is configured properly. Make sure there is no conflict with
other hardware in your PC workstation.
Minimize RSLinx.
Routing Table Considerations
You do not need a routing table in this example because the 1756-DHRIO
module is not included in the path between the PLC-5/40C processors. For
further explanation about routing paths, see “Understanding How Routing
Tables Are Used” on page 1-3.
Edit the Message Instruction
Restore or start the RSLogix5 software:
a. From the Windows NT Start menu, select Programs.
b. Select Rockwell Software > RSLogix5 English
OR
Double-click on:
Load the example program:
a. From the File menu, open the program “example.” See page 4-2.
b. In the MSG instruction, double-click on Setup Screen.
Publication 1756-6.5.13 - September 1999
8-4
Initiate ControlNet to ControlNet Communication
c. Select the General tab (default).
This message writes the value of the
seconds clock (S:23) in the PLC-5/40C
at node 1 into data file N7:0 of the
PLC-5/40C processor at node 2.
d. Enter the following configuration:
Publication 1756-6.5.13 - September 1999
This PLC-5:
Communication Command
Data Table Address
Size in Elements
Port Number
PLC-5 Typed Write
S:23
1
2
Target Devices:
Data Table Address
MultiHop
N7:0
Yes
Initiate ControlNet to ControlNet Communication
8-5
e. Select the MultiHop tab.
f. Enter the following MultiHop configuration:
For older releases of RSLogix5
software (no multihop function)
the path of “11 3 2” can be
placed in the ControlNet path
field to accomplish the same
function.
From Device
From Port
This PLC5
2
Control Logix Backplane
N/A
1756-CNB
N/A
MSG Destination
RS Linx Destination
To Address Type
1756-CNB Node (dec):
1756 Backplane Slot (dec):
ControlNet Node (dec)
To Address
11
3
2
No
g. Close the Setup Screen.
Publication 1756-6.5.13 - September 1999
8-6
Initiate ControlNet to ControlNet Communication
Test the Application
To test the application, download the program to the PLC-5/40C processor
at ControlNet node 1 to send the message to the PLC-5/40C processor at
node 2.
Download the program to the PLC-5/40C processor at ControlNet
node 1:
a. From the Comms menu in RSLogix5 select System Comms.
The System Options window will appear with the System
Communications tab open.
Verify that the AB_KT-1
driver is selected.
Verify that the Reply Timeout is
set to a minimum of 10 seconds.
b. Click on Who Active.
Publication 1756-6.5.13 - September 1999
Initiate ControlNet to ControlNet Communication
8-7
The RSWho window will appear.
c. Drill down the tree and double-click on the PLC-5/40C processor at
ControlNet node 1.
d. When the System Communications tab reappears, click on the
Download button.
Disregard any warnings about Control Net devices.
e. Save the program if prompted.
f. Go Online and change the processor mode to Run.
Publication 1756-6.5.13 - September 1999
8-8
Initiate ControlNet to ControlNet Communication
Verify the communications to the PLC-5/40C processor at ControlNet
node 2:
a. Start a new session of RSLogix5 software.
b. From the Comms menu in RSLogix5, select System Comms.
The System Options window will appear with the System
Communications tab open.
Verify that the AB_KT-1
driver is selected.
Verify that the Reply Timeout is
set to a minimum of 10 seconds.
c. Click on Who Active.
The RSWho window will appear.
d. Drill down the tree and double-click on the PLC-5/40C processor at
ControlNet node 2.
Publication 1756-6.5.13 - September 1999
Initiate ControlNet to ControlNet Communication
8-9
e. When the System Communications tab reappears, click on the Online
button.
f. If no program is loaded in the PLC-5/40C processor, a pop-up window
will appear with the message “You cannot go Online to DEFAULT
program.” Enter a new processor name of your choice (e.g., “Receiver”)
and click on OK.
• Disregard any warnings about ControlNet devices.
• It is not necessary to save the program.
g. Double-click on N7 in the data file list.
You should see the following screen:
Verify that this value is being updated.
When you see N7:0 being updated at one second intervals the message is
being sent successfully from the PLC-5/40C processor at ControlNet node 1
to the PLC-5/40C processor at ControlNet node 2.
Publication 1756-6.5.13 - September 1999
Chapter
9
Initiate DH+ to DH+ Communication With an
Ethernet Backbone
What You Need To Do
In this application, you will establish communication between two
PLC-5/40C processors over two DH+ gateways using an Ethernet
backbone. Change your existing system to the following configuration:
Verify the communication driver
PC Workstation
(DH+ node 0)
configurations (page 9-1).
Test the hardware (page 9-2).
DH+ Network
(link 10)
Ethernet
Hub
(link 100)
Configure the communication
DH+ node 3
(channel A)
DH+ node 4
(channel B)
modules in the left chassis
(page 9-3).
Configure the communication
RIGHT CHASSIS
LEFT CHASSIS
1756-DHRIO Module
(in slot 0)
DH+ Network
(link 20)
modules in the right chassis
(page 9-8).
1756-ENET Module
(in slot 0, Ethernet IP
address 130.130.130.2)
1756-ENET Module
(in slot 2, Ethernet IP
address 130.130.130.1)
DH+ Network
(link 30)
MSG
Test the application (page 9-14).
PLC-5/40C Processor
(DH+ node 1)
PLC-5/40C Processor
(DH+ node 10)
In this example, the PLC-5/40C processor in the left chassis at DH+ node
10 initiates a PLC-5 Typed Read message from the PLC-5/40C processor in
the right chassis at DH+ node 1, via an Ethernet link.
Verify the Communication Driver Configurations
Verify that the KTX driver and ethernet driver are configured as directed on
page 3-2.
Publication 1756-6.5.13 - September 1999
9-2
Test the KTX Diver and System Hardware Setup
Start the RSLinx software.
From the Communications menu in RSLinx, select RSWho:
a. Select the AB_KT-1 driver. Drill down until you see the 1756-DHIO
module in slot 0 and the 1756-ENET module in slot 2. Expand the view
to verify the channel A and channel B configurations. You should see a
display similar to that below:
b. If you do not see the correct display, check the faceplate indicators to
ensure the DHRIO and ENET modules are functioning properly. Verify
that modules and cables are properly connected and that switch settings
on the 1756-DHRIO module are correct. See page 2-7.
If you are still experiencing difficulty verify that the 1784-KTX
driver is configured properly. Make sure there is no conflict with
other hardware in your PC workstation.
Minimize RSLinx.
Publication 1756-6.5.13 - September 1999
9-3
Configure the Communication Modules in the Left Chassis
Start the configuration software:
a. From the Windows NT Start menu, select Programs.
b. Select ControlLogix Gateway > 1756gtwy.
Configure the Ethernet module in the left chassis:
a. From the File menu in the configuration software, select Browse
Network. RSLinx starts.
b. Select the AB_KT_1 Data Highway Plus driver and drill down the
backplane.
c. Double-click on the Ethernet module.
d. Select the Port Configuration tab.
You must make sure that each Ethernet
device has a unique IP address. For more
information, see page 7-3.
Make sure Bootp is disabled.
Publication 1756-6.5.13 - September 1999
9-4
e. Enter the following configuration:
IP Address
Subnet Mask
Gateway Address
130.130.130.1
255.255.0.0
0.0.0.0
Enable Bootp
Unchecked (disabled)
f. Click on Apply to download the configuration to the module.
You need to configure a routing table
to specify the path from the left
PLC-5/40C processor to the right
PLC-5/40C processor.
Configure the routing table in the 1756-DHRIO module in the left
chassis:
a. From the File menu in the configuration software, select Browse
Network.
b. Select the AB_KT_1 Data Highway Plus driver and double-click on the
1756-DHRIO module.
c. Select the Routing Table Configuration tab.
If you have previously configured any routing tables, click on Restore
Defaults to remove the configuration and restore the default values.
d. Double-click on the 1756-DHRIO module in the routing table.
Publication 1756-6.5.13 - September 1999
9-5
The Edit Module pop-up window will appear.
e. Enter the following link IDs and click on OK:
Channel A
Channel B
Link 10
Link 20
f. Right click on Backplane [Link Undefined].
g. Select Add Module.
h. Select 1756-ENET and click on OK.
i. Enter the following configuration and click on OK:
Slot Number
Link ID of Ethernet
2
100
j. Right click on ENET [Link 100] in the routing table.
Publication 1756-6.5.13 - September 1999
9-6
k. Select Add Module.
You select this to include the
1756-ENET module in the right
chassis in the routing table.
l. Select 1756-ENET and click on OK.
In the next section we describe how to
configure the 1756-ENET module in
the right chassis.
m. Enter the following configuration and click on OK:
IP Address
Link ID
This is the backplane of the right
chassis. Look for this just below the
new 1756-ENET entry (address
130.130.130.2).
130.130.130.2
0
n. Right click on the new Backplane [Link Undefined].
o. Select Add Module.
p. Select 1756-DHRIO and click on OK.
You add this to include the
1756-DHRIO module in the right
chassis in the routing table.
q. Enter the following link IDs and click on OK:
Slot Number
Channel A
Channel B
Publication 1756-6.5.13 - September 1999
2
Link 30
Link 40
9-7
You should now see the following completed routing table:
r. Click on Apply to download the routing table to the 1756-DHRIO
module.
s. Close the Gateway configuration software.
It is not necessary to save the configuration to a file.
You now need to configure the 1756-ENET module in the right chassis. To
do this, connect your PC (KTX card) to node 3 (channel A) of the
1756-DHRIO module in the right chassis. This provides you with access to
the 1756-ENET module in the right chassis via the backplane.
Publication 1756-6.5.13 - September 1999
9-8
Configure the Communication Modules in the Right Chassis
Start the configuration software:
a. From the Windows NT Start menu, select Programs.
b. Select ControlLogix Gateway, select 1756gtwy.
Configure the Ethernet module in the right chassis:
a. From the File menu in the configuration software, select Browse
Network. RSLinx starts.
b. Select the AB_KT_1 Data Highway Plus driver and drill down the
backplane.
c. Double-click on the Ethernet module.
d. Select the Port Configuration tab.
You must make sure that each Ethernet
device has a unique IP address. For more
information, see page 7-3.
Make sure Bootp is disabled.
Publication 1756-6.5.13 - September 1999
9-9
e. Enter the following configuration:
IP Address
Subnet Mask
Gateway Address
130.130.130.2
255.255.0.0
0.0.0.0
Enable Bootp
Unchecked (disabled)
f. Click on Apply to download the configuration to the module.
You need to configure a routing table
to specify the path from the right
PLC-5/40C processor to the left
PLC-5/40C processor.
Configure the routing table in the 1756-DHRIO module in the right
chassis:
a. From the File menu in the configuration software, select Browse
Network.
b. Select the AB_KT_1 Data Highway Plus driver and double-click on the
1756-DHRIO module.
c. Select the Routing Table Configuration tab.
If you have previously configured any routing tables, click on Restore
Defaults to remove the configuration and restore the default values.
d. Double-click on the 1756-DHRIO module in the routing table.
Publication 1756-6.5.13 - September 1999
9-10
The Edit Module pop-up window will appear.
e. Enter the following link IDs and click on OK:
Channel A
Channel B
Link 30
Link 40
f. Right click on Backplane [Link Undefined].
g. Select Add Module.
h. Select 1756-ENET and click on OK.
i. Enter the following configuration and click on OK:
Slot Number
Link ID of Ethernet
0
100
j. Right click on ENET [Link 100] in the routing table.
Publication 1756-6.5.13 - September 1999
9-11
k. Select Add Module.
You select this to include the
1756-ENET module in the left
chassis in the routing table.
l. Select 1756-ENET and click on OK. The Add Module pop-up window
will appear.
m. Enter the following configuration and click on OK:
IP Address
Link ID
This is the backplane of the left
chassis. Look for this just below
the new 1756-ENET entry (address
130.130.130.1).
130.130.130.1
0
n. Right click on the new Backplane [Link Undefined].
o. Select Add Module.
p. Select 1756-DHRIO and click on OK.
You add this to include the
1756-DHRIO module in the left
chassis in the routing table.
q. Enter the following link IDs and click on OK:
Slot Number
Channel A
Channel B
0
Link 10
Link 20
Publication 1756-6.5.13 - September 1999
9-12
You should now see the following completed routing table:
r. Click on Apply to download the routing table to the 1756-DHRIO
module.
s. Close the configuration software.
It is not necessary to save the configuration to a file.
Replace the cables to reflect the system drawing shown on the first page of
this chapter.
Verify the configuration:
a. Open or restore the RSLinx software.
b. From the Communications menu, select RSWho.
c. Select the AB_KT_1, Data Highway Plus driver and drill down to
channel B of the 1756-DHRIO module in the left chassis.
d. Select the TCP-1, Ethernet driver and drill down to channel A of the
1756-DHRIO module in the right chassis.
Publication 1756-6.5.13 - September 1999
9-13
Your display should appear similar to that below. You should see the
PLC-5/40C processor at node 10 connected to channel B of the left
DHRIO module and the PLC-5/40C processor at node 1 connected to
channel A of the right DHRIO module.
If the PLC-5/40 processors do not appear, then verify the switch settings in
the 1756 DHRIO modules and PLC-5/40 processors and check that the
cables are properly connected.
If you are still experiencing difficulty, reconfigure the routing tables and
Ethernet modules as described previously.
Publication 1756-6.5.13 - September 1999
9-14
Test the Application
Start the RSLogix5 software:
a. From the Windows NT Start menu, select Programs.
b. Select Rockwell Software > RSLogix5 English.
OR
Double-click on:
Verify the PLC-5 Processor Connected to the Right Chassis is Active:
c. From the Comms menu in RSLogix5, select System Comms.
The System Options window will appear with the System
Communications tab open.
d. Select TCP-1 as the Driver and click on Who Active.
Publication 1756-6.5.13 - September 1999
9-15
The RSWho window will appear.
e. Drill down the tree and double-click on the PLC-5/40C processor in the
right chassis at DH+ node 1.
f. When the System Communications tab reappears, click on the Online
button.
g. If no program is loaded in the PLC-5/40C processor, a pop-up window
will appear with the message “You cannot go Online to DEFAULT
program.” Enter a new processor name of your choice (e.g.,
“EXAMPLE9”) and click on OK.
• It is not necessary to save the program.
• Disregard any warnings about Control Net devices.
Publication 1756-6.5.13 - September 1999
9-16
Load the example program:
a. Start another session of RSLogix5.
b. From the File menu, open the program “example.” See page 4-2.
c. In the MSG instruction, double-click on Setup Screen.
This message reads the value of the
seconds clock (S:23) in the PLC-5/40C
processor in the right chassis into data file
N7:0 of the PLC-5/40C processor in the left
chassis.
d. Enter the following configuration.
This is the node number of the DH+
channel on the local link (link 20).
This is the node number of the target
PLC-5/C processor.
This PLC-5:
Communication Command
Data Table Address
Size in Elements
Port Number
PLC-5 Typed Read
N7:0
1
1A
Target Device:
Data Table Address
Local DH+ Node
Local/Remote
Remote Link Type
Remote Station Address
Remote Bridge Link ID
S:23
4
Remote
Data Highway
1
30
e. Close the Setup Screen.
Publication 1756-6.5.13 - September 1999
9-17
Download the program to the PLC-5/40C processor at DH+ node 10:
a. From the Comms menu in RSLogix5 select System Comms
The System Options window will appear with the System
Communications tab open.
b. Select the AB_KT-1 Driver and click on Who Active.
The RSWho window will appear:
c. Drill down the tree and double-click on the PLC-5/40C processor at
node 10.
d. When the System Communications tab reappears, click on the
Download button.
Publication 1756-6.5.13 - September 1999
9-18
Disregard any warnings about Control Net devices.
e. Save the program if prompted.
f. Go Online and change the processor mode to Run.
g. Double-click on N7 in the data file list.
You should see the following screen:
Verify that this value is being updated.
When you see N7:0 being updated at one second intervals the message
from the PLC-5/40C processor in the right chassis is being read
successfully by the PLC-5/40C processor in the left chassis.
Publication 1756-6.5.13 - September 1999
Chapter
10
Initiate ControlNet to DH+ Communication
With an Ethernet Backbone
What You Need To Do
In this application, you will establish communication from one PLC-5/40C
on a ControlNet network to another PLC-5/40C on a DH+ network,
bridging across ControlNet, Ethernet, and DH+ networks.
Change your existing system to the following configuration:
Verify the communication driver
PC Workstation
(DH+ node 0)
configurations (page 10-1).
Test the KTX driver and system
hardware (page 10-2).
DH+
Network
(link10)
1756-DHRIO Module
(in slot 2)
Ethernet
Hub
LEFT CHASSIS
1756-DHRIO Module
(in slot 0)
DH+ node 3
(channel A)
modules in the left chassis
(page 10-3).
DH+ Network
(link 10)
1756-ENET Module
(130.130.130.1)
1756-ENET Module
(in slot 2)
(130.130.130.2)
(in slot 0)
the right chassis (page 10-8).
Test the application (page 10-10).
1756-CNB Module
(in slot 1)
(link 100)
Configure the communication
Configure the Ethernet module in
RIGHT CHASSIS
ControlNet Network
(link 101)
MSG
PLC-5/40C Processor
(DH+ node 10)
PLC-5/40C Processor
(ControlNet node 1)
In this example, the PLC-5/40C processor in the left chassis at DH+ node
10 initiates a PLC-5 Typed Read message from the PLC-5/40C processor in
the right chassis at ControlNet node 1.
Verify the Communication Driver Configuration
Verify that the KTX driver and ethernet driver are configured as directed on
page 3-2.
Publication 1756-6.5.13 - September 1999
10-2
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
Test the KTX Driver and System Hardware Setup
Start the RSLinx software.
a. From the Communications menu in RSLinx, select RSWho:
b. Select the AB_KT-1 driver. Drill down until you see the 1756-DHIO
module in slot 0 and the 1756-ENET module in slot 2. Expand the view
to verify the channel A and channel B configurations. You should see a
display similar to that below:
c. If you do not see the correct display, check the faceplate indicators to
ensure the DHRIO and ENET modules are functioning properly. Verify
that modules and cables are properly connected and that switch settings
on the 1756-DHRIO module are correct. See page 2-7.
If you are still experiencing difficulty verify that the 1784-KTX
driver is configured properly. Make sure there is no conflict with
other hardware in your PC workstation.
Minimize RSLinx.
Publication 1756-6.5.13 - September 1999
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
10-3
Configure the Communication Modules in the Left Chassis
Start the configuration software:
a. From the Windows NT Start menu, select Programs.
b. Select ControlLogix Gateway > 1756gtwy.
Configure the Ethernet module in the left chassis:
a. From the File menu in the configuration software, select Browse
Network. RSLinx starts.
b. Select the AB_KT_1 Data Highway Plus driver and drill down the
backplane.
c. Double-click on the Ethernet module.
d. Select the Port Configuration tab.
You must make sure that each Ethernet
device has a unique IP address. For more
information, see page 7-3.
Make sure Bootp is disabled.
Publication 1756-6.5.13 - September 1999
10-4
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
e. Enter the following configuration:
IP Address
Subnet Mask
Gateway Address
Enable Bootp
130.130.130.1
255.255.0.0
0.0.0.0
Unchecked (disabled)
f. Click on Apply to download the configuration to the module.
You need to configure a routing table
to specify the path from the left
PLC-5/40C processor to the right
PLC-5/40C processor.
Configure the routing table in the 1756-DHRIO module in the left
chassis:
a. From the File menu in the configuration software, select Browse
Network.
b. Select the AB_KT_1 Data Highway Plus driver and double-click on the
1756-DHRIO module.
c. Select the Routing Table Configuration tab.
If you have previously configured any routing tables, click on Restore
Defaults to remove the configuration and restore the default values.
d. Double-click on the 1756-DHRIO module in the routing table.
Publication 1756-6.5.13 - September 1999
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
10-5
The Edit Module pop-up window will appear.
e. Enter the following link IDs and click on OK:
Channel A
Channel B
Link 10
Link 20
f. Right click on Backplane [Link Undefined].
g. Select Add Module. The Select Module pop-up window will appear.
h. Select 1756-ENET and click on OK. The Add Module pop-up window
will appear.
i. Enter the following configuration and click on OK:
Slot Number
Link ID of Ethernet
2
100
Publication 1756-6.5.13 - September 1999
10-6
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
j. Right click on ENET [Link 100] in the routing table.
k. Select Add Module.
You select this to include the
1756-ENET module in the right
chassis in the routing table.
l. Select 1756-ENET and click on OK.
In the next section we describe how to
configure the 1756-ENET module in
the right chassis.
m. Enter the following configuration and click on OK:
IP Address
Link ID
This is the backplane of the right
chassis. Look for this just below the
new 1756-ENET entry (address
130.130.130.2).
130.130.130.2
0
n. Right click on the new Backplane [Link Undefined].
o. Select Add Module.
p. Select 1756-CNB and click on OK.
q. Enter the following configuration and click on OK:
Slot Number
Link ID of ControlNet
Publication 1756-6.5.13 - September 1999
1
101
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
10-7
You should now see the following completed routing table:
r. Click on Apply to download the routing table to the 1756-DHRIO
module.
s. Close the Gateway configuration software.
It is not necessary to save the configuration to a file.
Next, you need to configure the 1756-ENET module in the right chassis. To
do this, connect your PC (KTX card) to node 3 (channel A) of the
1756-DHRIO module local to the 1756-ENET module in the right chassis.
Doing this provides you with access to the 1756-ENET module in the right
chassis via the backplane.
Publication 1756-6.5.13 - September 1999
10-8
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
Configure the 1756-ENET Module in the Right Chassis
Start the configuration software:
a. From the Windows NT Start menu, select Programs.
b. Select ControlLogix Gateway, select 1756gtwy.
Configure the IP address:
a. From the File menu in the configuration software, select Browse
Network.
RSLinx starts.
b. Select the AB_KT_1 Data Highway Plus driver and drill down the
backplane.
c. Double-click on the Ethernet module.
d. Select the Port Configuration tab.
You must make sure that each Ethernet
device has a unique IP address. For more
information, see page 7-3.
Make sure Bootp is disabled.
Publication 1756-6.5.13 - September 1999
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
10-9
e. Enter the following configuration:
IP Address
Subnet Mask
Gateway Address
130.130.130.2
255.255.0.0
0.0.0.0
Enable Bootp
Unchecked (disabled)
f. Click on Apply to download the configuration to the module.
Now replace the cables to reflect the system drawing shown on the first
page of this chapter.
Verify the configuration:
a. Open or restore the RSLinx software.
b. From the Communications menu, select RSWho.
c. Select the AB_KT_1, Data Highway Plus driver and drill down to
channel B of the 1756-DHRIO module in the left chassis.
d. Select the TCP-1, Ethernet driver and drill down through the backplane
of the right chassis to ControlNet channel A.
Your display should appear similar to that below. You should see the
PLC-5/40C processor in the left chassis at DH+ node 10 and the
PLC-5/40C processor in the right chassis at ControlNet node 1.
If the PLC-5/40C processors do not appear, then verify the switch settings
in the communication modules and PLC-5/40C processors and check that
the cables are properly connected.
If you are still experiencing difficulty, reconfigure the routing table and
Ethernet modules as described previously.
Publication 1756-6.5.13 - September 1999
10-10
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
Test the Application
Start the RSLogix5 software:
a. From the Windows NT Start menu, select Programs.
b. Select Rockwell Software > RSLogix5 English
OR
Double-click on:
Verify the PLC-5 Processor at ControlNet Node 1 is Active:
c. From the Comms menu in RSLogix5, select System Comms.
The System Options window will appear with the System
Communications tab open.
d. Select TCP-1 as the Driver and click on Who Active.
Publication 1756-6.5.13 - September 1999
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
10-11
The RSWho window will appear.
e. Drill down the tree and double-click on the PLC-5/40C processor at
ControlNet node 1.
f. When the System Communications tab reappears, click on the Online
button.
g. If no program is loaded in the PLC-5/40C processor, a pop-up window
will appear with the message “You cannot go Online to DEFAULT
program.” Enter a new processor name of your choice (e.g.,
“EXAMPL10”) and click on OK.
• It is not necessary to save the program.
• Disregard any warnings about Control Net devices.
Publication 1756-6.5.13 - September 1999
10-12
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
Load the example program:
a. Start another session of RSLogix5.
b. From the File menu, open the program “example.” See page 4-2.
c. In the MSG instruction, double-click on Setup Screen.
The MSG window will appear with the General tab open.
This message reads the value of the
seconds clock (S:23) in the PLC-5/40C
processor at ControlNet node 1 into data file
N7:0 of the PLC-5/40C processor at DH+
node 10.
d. Enter the following configuration.
This is the node number of the DH+
channel on the local link (link 10).
This is the ControlNet node number of
the target PLC-5/C processor.
This PLC-5:
Communication Command
Data Table Address
Size in Elements
Port Number
PLC-5 Typed Read
N7:0
1
1A
Target Device:
Data Table Address
Local DH+ Node
Local/Remote
Remote Link Type
Remote Station Address
Remote Bridge Link ID
S:23
3
Remote
Data Highway
1
101
e. Close the Setup Screen.
Publication 1756-6.5.13 - September 1999
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
10-13
Download the program:
a. From the Comms menu in RSLogix5 select System Comms.
The System Options window will appear with the System
Communications tab open.
b. Select the AB_KT-1 Driver and click on Who Active.
The RSWho window will appear:
c. Drill down the tree and double-click on the PLC-5/40C processor at
node 10.
d. When the System Communications tab reappears, click on the
Download button.
Disregard any warnings about Control Net devices.
Publication 1756-6.5.13 - September 1999
10-14
Initiate ControlNet to DH+ Communication With an Ethernet Backbone
e. Save the program if prompted.
f. Go Online and change the processor mode to Run.
g. Double-click on N7 in the data file list.
You should see the following screen:
Verify that this value is being updated.
When you see N7:0 being updated at one second intervals the message
from the PLC-5/40C processor at ControlNet node 1 is being read
successfully by the PLC-5/40C processor at DH+ node 10.
Publication 1756-6.5.13 - September 1999
Chapter
11
Troubleshoot the System
Verify the module hardware
(page 11-1).
?
Verify the communication links
(page 11-2).
Verify the routing tables
(page 11-2).
If all else fails...
(page 11-2).
Verify the Module Hardware
?
Check each module’s hardware to ensure it is what you expect. Specifically,
verify the following:
✓ Are they all powered?
✓ Are the switch settings correct? Was the module correctly
oriented when you set the switches so you didn’t mix up any
left to right ordering?
✓ Are the “OK” LEDs all green (blinking or solid)? Do the
displays indicate any errors?
✓ Are they in the correct slot location? (ControlLogix slots are
numbered from the left starting with zero.)
✓ Is the wiring correct? Are the channel indicators correct?
Publication 1756-6.5.13 - September 1999
11-2
Troubleshoot the System
Verify the Communication
Links
1. Perform an RSWho to determine which devices are on line.
2. Examine the diagnostic counters. If you notice CRC errors, they might
indicate noise or intermittent connection problems.
3. Verify that each link is properly terminated.
Verify the Routing Tables
Compare your routing table with those shown in the example applications.
Do they look similar? If they do not, try the following:
1. Verify the paths in the routing tables, in both forward and reverse
directions.
✓ Do the paths go far enough to reach the destination?
✓ Are the paths complete?
✓ Do the paths include the link ID for the local port?
✓ Are all of the node numbers and slot assignments correct?
2. Verify the link IDs in the source MSG instruction, in each of the
1756-DHRIO modules, and in the destination’s channel configuration.
If All Else Fails. . .
1. Verify the channel configuration.
2. Check the MSG instruction. Ensure that the parameters are correct.
Examine the status bits to verify that the instruction is actually trying to
send a message.
3. Examine the error codes in the device sending the message. Keep the
following in mind:
• “local link timeout” indicates that the PLC processor cannot find the
first bridge
• “application timeout” often indicates a problem in the return route
• “D0” indicates that the first bridge is not correctly configured or that
it has other problems in trying to reach its destination
4. Examine the diagnostic counters. Specifically, look at the “requests sent”
and “replies received” counters in the device sending the message.
Compare these with the values in the “requests received” and “replies
sent” counters in the destination device.
Publication 1756-6.5.13 - September 1999
Index
A
about the applications 1-1
audience P-1
B
backplane switches 2-3
C
chassis installation and grounding 2-4
comments P-4
common techniques used in this
manual P-3
communication links
verifying 11-2
configuration software 3-1 to 3-2
configuring the communication
drivers 3-2
configuring the Ethernet driver 3-2
configuring the PLC-5 processors
2-3, 4-1
ControlLogix Gateway configuration
software 3-2
ControlNet communication 8-1 to 8-9
conventions P-3
creating the system 1-2
customer services P-4
customer support P-4
D
DH+ to ControlNet communication
with an Ethernet backbone 10-1 to
10-14
DH+ to DH+ communication
via a single gateway 5-1 to 5-9
via two gateway modules 6-1 to
6-10
with an Ethernet backbone 9-1 to
9-18
DHRIO module
using 1-3
E
entering the ladder logic program 4-1
to 4-2
Ethernet card installation 2-2
Ethernet driver
configuration 3-2
Ethernet to DH+ communication 7-1
to 7-7
example system 2-1
F
finding more information P-2
G
Gateway configuration software 3-2
H
hardware setup 2-1 to 2-13
1784-KTX card 2-2
ControlNet modules 2-12
DH+ modules 2-7
Ethernet modules 2-10
personal computer 2-2
PLC-5 processors 2-3
I
if you find an error P-4
installation
chassis installation and grounding
2-4
communication modules 2-7 to
2-13
ControlNet modules 2-12 to 2-13
DH+ modules 2-7 to 2-9
Ethernet card in PC workstation
2-2
Ethernet modules 2-10 to 2-11
KTX communication card 2-2
PLC-5 processors 2-3 to 2-4
power supply 2-5 to 2-6
software 3-1
Publication 1756-6.5.13 - September 1999
I-2
K
KTX communication card 2-2
KTX driver configuration 3-2
L
ladder logic program
entering 4-1 to 4-2
link numbers 1-3
local product support P-4
M
making a suggestion P-4
making comments P-4
module port numbers 1-3
O
overview 1-1 to 1-3
P
paths 1-3
PC workstation setup 2-2
PLC-5 processor configuration 2-3,
4-1
power supply
connection 2-5 to 2-6
program
saving 4-2
R
related publications P-2
reporting an error or problem P-4
routing tables
understanding 1-3
Publication 1756-6.5.13 - September 1999
verifying 11-2
RSLogix5 software 4-1 to 4-2
S
setting backplane switches 2-3
setting module node numbers 1-3
setting up the hardware 2-1 to 2-13
software setup 3-1 to 3-2
suggestions P-4
support P-4
system components 1-2
system configuration 2-1
T
technical product assistance P-4
troubleshooting 11-1 to 11-2
typical system 2-1
V
verifying communication links 11-2
verifying routing tables 11-2
verifying the module hardware 11-1
W
what this manual provides 1-1
what you’ll be doing in this manual
1-1
where to go for questions P-4
Allen-Bradley
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Pub. No.
1756-6.5.13
Pub. Date
September 1999
Part No.
955133-91
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