Allen-Bradley ASB Series E Remote I/O Adapter User Manual
Below you will find brief information for Remote I/O Adapter ASB Series E. The Remote I/O Adapter ASB Series E allows you to transmit data up to 10,000 cable-feet (at 57.6K baud). It provides faster backplane scanning and data transmission up 2500 cable-feet at 230.4K baud. The adapter module can emulate series B adapters, providing system response similar to the 1771-ASB series B. The module has enhanced diagnostic indicators for easier troubleshooting.
Advertisement
Advertisement
AllenĆBradley
Remote I/O
Adapter Module
(Cat. No. 1771-ASB Series E)
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 in part, without written permission of Allen-Bradley Company, Inc., 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 the hazard
• recognize the consequences
Important: Identifies information that is critical for successful application and understanding of the product.
ControlNet is a trademark; PLC is a registered trademark of Allen-Bradley Company, Inc.
Preface
Using This Manual
Preface Objectives
Read this preface to familiarize yourself with this manual and to learn how to use it properly and efficiently.
What This Manual
Contains
The contents of this manual are as follows:
Chapter
1
2
3
4
Appendix
A
B
C
D
E
Table P.A
What This Manual Contains
Title
Introducing the Remote I/O Adapter
Module
Installing Your Module
Configuring Your Remote I/O
Troubleshooting
Specifications
Settings for 1771-AS and -ASB/A,
B, C and D
Differences Between 1771ĆASB
Series A, B, C, D and E Remote I/O
Adapter Modules
Questions and Answers
CSA Hazardous Location Approval
What's Covered
Describes features, capabilities, and hardware components.
Procedures and guidelines for installing the module
Hardware addressing and configuration options
Troubleshooting aids
Module specifications
Comparable switch settings and keying information for older adapters
An explanation of the differences between 1771ĆASB
Series
Answers to frequently asked questions
Safety approvals
Audience
We assume that you have previously used an Allen–Bradley programmable controller, that you are familiar with its features, and that you are familiar with the terminology we use. If not, read the user manual for your processor before reading this manual.
Publication 1771ĆUM001A-US-P - February 2000
P–2
Using This Manual
Understand Compliance to
European Union Directives
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 Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC) and the following standards, in whole or in part, documented in a technical construction file:
•
EN 50081-2EMC – Generic Emission Standard,
Part 2 – Industrial Environment
•
EN 50082-2EMC – 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 “Industrial Automation Wiring and Grounding Guidelines For Noise Immunity,” Allen-Bradley publication 1770-4.1
Open style devices must be provided with environmental and safety protection by proper mounting in enclosures designed for specific application conditions. See NEMA Standards publication 250 and
IEC publication 529, as applicable, for explanations of the degrees of protection provided by different types of enclosure.
Publication 1771ĆUM001A-US-P - February 2000
Terminology Used in This
Manual
Using This Manual
P–3
The following list defines common terms used in this manual.
Complementary I/O: An I/O technique that allows a PC to interface with an input and output module using the same location address in different I/O chassis.
Complementary Module: A module that performs an opposite function; an input module complements an output module and vice versa.
Standard–Density I/O Module: A module that provides up to 8 input terminals or 8 output terminals.
High–Density I/O Module: A module that provides 16 input or 16 output terminals.
Quad–Density I/O Module: A module that provides 32 input or 32 output terminals.
I/O Group: An addressing unit that can contain up to 16 input terminals and 16 output terminals.
PC: An Allen–Bradley programmable controller, such as the PLC–5.
Processor: A term used to mean an Allen–Bradley programmable controller.
Half–Slot Addressing: A method of addressing where the processor can address its I/O in 1/2–slot I/O groups.
One–Slot Addressing: A method of addressing where the processor can address its I/O in 1–slot I/O groups.
Two–Slot Addressing: An method of addressing where the processor can address its I/O in 2–slot I/O groups.
Publication 1771ĆUM001A-US-P - February 2000
P–4
Using This Manual
Product Compatibility
The remote I/O adapter module is one of many hardware components that make up a programmable controller system.
Table P.B lists the hardware components and products with which you can use the adapter module.
Table P.B
Compatible Hardware Products
Product name
Processors
Description
PLC-2/20 Programmable Controller
PLC-2/30 Programmable Controller
PLC-3 Programmable Controller System
PLC-5 Programmable Controller Family
PLC-5/250 Programmable Controller (Pyramid Integrator)
ControlLogix 5550 Programmable Controller Family
SLC Controller Family
I/O Scanners
Universal I/O
Chassis
I/O Modules
Remote I/O Scanner/Distribution Panel for PLC-2 Family Processors
I/O Scanner-Programmer Interface Module for PLC-3 Family
Processors
I/O Scanner-Message Handling Module for PLC-3 Family Processors
VMEbus I/O Scanner
IBM PC I/O Scanner
Q-bus PC I/O Scanner
Sub-I/O Scanner
Pyramid Integrator Remote I/O Scanner
DH+/Remote I/O Communication Interface Module
Remote I/O Scanner for SLC Family Processors
4-slot
8-slot
12-slot
16-slot
Block transfer modules
8-point I/O Standard density I/O modules
16-point I/O High density I/O modules
32-point I/O Quad-Density I/O modules
Adapter modules Remote I/O Adapter Module (can mix 1771-ASB/B and 1771-AS in same remote system - limited to 115.2k Baud or less)
Power Supplies System Power Supply
Auxiliary Power Supply
Auxiliary Power Supply module (120V AC input, 3A)
Auxiliary Power Supply module (120V AC input, 8A)
Redundant Power Supply module
Auxiliary Power Supply module (24V DC input, 8A)
Auxiliary Power Supply module (220/240V AC input, 8A)
Auxiliary Power Supply module (120/220V AC input, 16A)
PLC-2 Power Supply (115V AC input)
PLC-2 Power Supply (24V DC input)
Local Power Supply
PLC-3 Power Supply
Auxiliary Power Supply (24V DC input)
Power Supply Module
1771-AS
1771-P1
1771-P2
1771-P3
1771-P4, -P4S, -P4S1
1771-P4R, -P6R
1771-P5, ĆP5E
1771-P6S, -P6S1
1771-PS7
1772-P1
1772-P4
1774-P1
1775-P1
1777-P4
1771-P10
Catalog number
1772-LP1, -LP2
1772-LP3
1775-L3
1785-LT, -LT2, 6008-LTV
5250-LP
1756-L1, -L1M1, -L1M2, -L1M3
1747
1772-SD, -SD2
1775-S4A, -S5
1775-S4B, -GA
6008-SV
6008-SI
6008-SQ
1771-SN
5150-RS
1756-DHRIO
1746-SN
1771-A1, -A1B
1771-A2, -A2B
1771-A3B,-A3B1
1771-A4, -A4B
All modules that use the 1771 I/O structure
Publication 1771ĆUM001A-US-P - February 2000
Related Publications
Summary
Using This Manual
P–5
Read this manual in conjunction with the following documentation:
Publicatin Number
1747-6.6
1756Ć6.5.14
1770-4.1
1771-2.210
1772-6.6.2
1772-6.8.1
1772-6.8.3
1772-2.8
1772-2.18
1775-6.7.1
1775-6.3.1
1775-6.5.2
1775-6.5.3
1785-6.6.1
1789-10.1
5000-6.4.7
6008-6.2.1
6008-6.5.2
6008-6.5.3
J2-3088-X
Title
Remote I/O Scanner cat. no. 1747ĆSN User Manual
ControlLogix Data Highway Plus/Remote I/O Communication
Interface Module User Manual
Programmable Controller Grounding and Wiring Guidelines
Universal I/O Chassis Product Data
PLC-2/20 and 2/30 Assembly and Installation Manual
PLC-2/20 Programming and Operations Manual
PLC-2/30 Programming and Operations Manual
Remote I/O Scanner/Distribution Panel Product Data
Remote I/O Scanner/Distribution Panel Product Data
PLC-3 Controller Installation and Operations Manual
PLC-3 Controller Backup Concepts Manual
I/O Scanner-Programmer Interface Module User's Manual
I/O Scanner-Message Handling Module User's Manual
PLC-5 Family Assembly and Installation Manual
SoftLogix Getting Results Guide
PLC-5/250 Installing and Configuring Manual
Q-bus I/O Scanner Module Installation Manual
VME I/O Scanner Module User's Manual
IBM PC I/O Scanner Module User's Manual
Automax Remote I/O Scanner Module w/Adapter Mode
This chapter gave you information on how to use this manual efficiently. The next chapter introduces you to the remote I/O adapter module.
Publication 1771ĆUM001A-US-P - February 2000
P–6
Using This Manual
Publication 1771ĆUM001A-US-P - February 2000
Table of Contents
Introducing the Remote I/O
Adapter Module
Installing Your Module
Addressing Modes for Your
Remote I/O
Chapter 1
Chapter Objectives
Module Description and Features
Hardware Components
Diagnostic Indicators
Module Switch Assemblies
Field Wiring Arm
Summary
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2
Chapter Objectives
Power Requirements
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Module Location and Keying . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Module Configuration Plugs . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Module Switches
Address Switch Assembly (S1)
Switch Assembly (S2)
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the I/O Chassis Switches . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Backplane Switch Assembly
Setting the I/O Chassis Power Supply Configuration Plug
Wiring the Field Wiring Arm
Installing the Terminator
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compatibility of 1771 Remote I/O Products with
Extended Node Numbers
Module Installation
Summary
. . . . . . . . . . . . . . . . . . .
. . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-9
2-12
2-12
2-14
2-2
2-3
2-3
2-9
2-1
2-1
2-1
2-2
2-14
2-15
2-15
Chapter 3
Chapter Objectives
Hardware Addressing
2ĆSlot Addressing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O Module Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using StandardĆdensity I/O (8 point) Modules
Using HighĆdensity (16 point) I/O Modules
Identifying I/O Groups
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Complementary I/O with 2ĆSlot Addressing
Module Placement with 2Ćslot Addressing
1ĆSlot Addressing
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identifying I/O Groups
Module Placement with 1Ćslot Addressing
Assigning I/O Rack Numbers with 1ĆSlot Addressing
1/2Ć Slot Addressing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-11
3-13
3-15
3-16
3-17
3-19
3-4
3-5
3-7
3-9
3-1
3-1
3-3
3-3
1-1
1-1
1-2
1-2
1-3
1-3
1-4
Publication 1771ĆUM001A-US-P - February 2000
toc-ii
Table of Contents
Troubleshooting
Specifications
Settings for 1771-AS and
1771-ASB Series A, B, C and D Remote I/OAdapters
Differences Between
1771ĆASB Series A, B, C, D and E Remote I/OAdapter
Modules
Questions and Answers
CSA Hazardous Location
Approval
Assigning I/O Rack Numbers with 1/2Ćslot Addressing
Complementary I/O with 1/2ĆSlot Addressing
. . . . . . . .
. . . . . . . . . . . . . . . . .
Module Placement with 1/2Ćslot Addressing
Mixing 1 and 2ĆSlot Addressing in Individual Chassis
Acceptable Chassis Combinations . . . . . . . . . . . . . . . . . . . . . . . .
I/O Chassis/Adapter Module Combinations
Summary
. . . . . . . . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-20
3-22
3-22
3-23
3-24
3-25
3-25
Chapter 4
Chapter Objectives
Autoconfigure
Summary
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting With the Indicator Lights . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1
4-1
4-4
4-4
Appendix A
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-1
Appendix B
Settings for 1771-AS and 1771-ASB Series A, B, C and D Remote I/O
Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B-1
Appendix C
Differences Between 1771ĆASB Series A, B, C, D and E Remote I/O Adapter
Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-1
Appendix D
Questions and Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix E
CSA Hazardous Location Approval . . . . . . . . . . . . . . . . . . . . . . . .
D-1
E-1
Publication 1771ĆUM001A-US-P - February 2000
Chapter Objectives
Module Description and
Features
Chapter
1
Introducing the Remote I/O
Adapter Module
This chapter describes the cat. no. 1771-ASB, series E remote I/O adapter module:
module description and features
The remote I/O adapter module serves as an interface between remote I/O modules and programmable controllers. The remote I/O adapter:
• transmits data up to 10,000 cable-feet (at 57.6K baud)
• provides faster backplane scanning and data transmission up 2500 cable-feet at 230.4K baud
• receives/sends data from/to the I/O scanner in serial form
• reads/writes data from/to the input modules in parallel form
• reads/writes data from/to the output modules in parallel form
• supports any mix of I/O (4, 6, 8, 16 or 32 points)
• supports three methods of I/O addressing; 1/2-slot, 1-slot and
2-slot
• checks I/O configuration on power-up to verify I/O module placement
• scans all slots in the chassis, or all but the last four slots, allowing improved scan time and I/O image space savings. Slot power supplies can be used in the last quarter of the rack without using
I/O space.
• can emulate series B adapters, providing system response similar to the 1771-ASB series B. This allows use of 1771-S4A and -S4B scanners which require slower response for proper operation.
• has enhanced diagnostic indicators for easier troubleshooting.
Publication 1771-UM001A-US-P - February 2000
1–2
Introducing the Remote I/O Adapter Module
Hardware Components
The remote I/O adapter module consists of four major components:
module switch assemblies
field wiring arm
Diagnostic Indicators
Diagnostic indicators are located on the front panel of the adapter module (Figure 1.1). They show both normal operation and error conditions in your remote I/O system. The indicators are:
•
ACTIVE (green)
•
ADAPTER FAULT (red)
•
I/O RACK FAULT (red)
A complete description of these indicators and how to use them for troubleshooting is explained in chapter 4.
Figure 1.1
Remote I/OAdapter Module, Cat. No. 1771-ASB Series E
Switch S2
Switch S1
Diagnostic
Indicators
Configuration
Jumpers (see note)
Field Wiring
Arm
Configuration
Jumpers (see note)
10796ĆI
NOTE: Configuration jumpers may be in either position, depending upon production date.
Publication 1771-UM001A-US-P - February 2000
Introducing the Remote I/O Adapter Module
Module Switch Assemblies
You must set two switch assemblies to configure your adapter module. Figure 1.2 shows the location of the switches.
Figure 1.2
Switch Locations
1–3
Switch Assembly
(S1)
Switch Assembly
(S2)
The S1 Assembly is used to select:
• the I/O rack number
• the first I/O group number
•
I/O scanner communication with or without complementary
I/O (for PLC-2 family processors)
The S2 Switch Assembly selects:
• a specific baud rate based on the maximum I/O chassis distance
•
I/O scanner communication with or without complementary
I/O (for PLC-2 family processors)
• scan - processor will scan all slots in the chassis, or all but the last four slots in the chassis
• link response - establishes series B emulation response time required for compatibility with PLC-2 and PLC-3 scanners.
Field Wiring Arm
The field wiring arm (cat. no. 1771-WB) provides connection points for:
•
I/O communication cables
• a user-supplied I/O chassis restart pushbutton
The field wiring arm (Figure 1.1) pivots on the front of the chassis to connect with the module’s printed circuit board. This feature allows you to remove the adapter module without disconnecting the system wiring.
Publication 1771-UM001A-US-P - February 2000
1–4
Summary
Introducing the Remote I/O Adapter Module
In this chapter we discussed the functions and hardware components of the Remote I/O Adapter Module.
Publication 1771-UM001A-US-P - February 2000
Chapter Objectives
Power Requirements
Module Location and
Keying
Chapter
2
Installing Your Module
This chapter describes the procedures for installing your remote I/O adapter module. These include:
• power requirements
• module location and keying
• setting configuration plugs
• setting the module switches
• setting the I/O chassis switches (backplane and
• setting the I/O chassis power supply configuration plug
• wiring the field wiring arm
• installing the terminator resistor
• compatibility of products
• installing the module
The remote I/O adapter module requires a backplane current of 1.0A
at 5V dc. Remember to add this amount to other current requirements for your remote I/O chassis.
The remote I/O adapter module must be installed in the leftmost slot of the I/O chassis.
The I/O chassis backplane connectors are keyed to accept only one type of module. This prevents accidental insertion of other modules in the wrong module slot. Key the backplane connectors (Figure 2.1) for the adapter module as follows:
• upper connector: between 54 and 56
• lower connector: between 16 and 18
Figure 2.1
Keying Diagram
4 8
5 0
5 2
5 4
5 6
4 0
4 2
4 4
4 6
Upper Connector
Insert keying bands between: upper connector Ć 54 and 56 lower connector Ć 16 and 18
1 0
1 2
1 4
1 6
1
6
8
2
4
2
2 2
8
0
Keying Bands
Lower Connector
12252
Publication 1771-UM001A-US-P - February 2000
2–2
Installing Your Module
Setting the Module
Configuration Plugs
You need to set configuration plugs on the remote I/O adapter module to use 32-point I/O modules, . You access the plugs through the access hole on the left side of the module (Figure 2.2). Each plug is inserted on two pins of a three-pin connector. Thermocouple Input
Modules (Cat. No. 1771-IX and -IY) are not compatible with
32-point I/O modules.
Figure 2.2
Setting the Module Configuration Plug
Setting the Module
Switches
Position all 3 jumpers on the left 2 pins
NOTE: Configuration jumpers may be in either position, depending upon production date.
10797ĆI
Important: When you set the configuration plugs in the left position, you can use 32-point I/O modules and any addressing method, but you cannot use Cat. No.
1771-IX or 1771-IY modules. When you set these plugs in the right position, you can use 1771-IX and 1771-IY modules and any addressing method, but you cannot use 32-point I/O modules. If the plugs are set incorrectly, addressing errors will occur.
If you need to use a thermocouple module and 32-point I/O modules in the same remote chassis, use the 1771-IXE
Thermocouple/Millivolt Module (Cat. No. 1771-IXE).
Set switch assemblies S1 and S2 (Figure 2.3) with a blunt, pointed instrument such as a ball-point pen. Do not use a pencil; the lead could break off and jam the switch.
This publication describes switches as being either on or off. The words ON and OFF should be printed on the switch assemblies. If a switch assembly has the word OPEN printed on it, the word OPEN corresponds to OFF.
Publication 1771-UM001A-US-P - February 2000
Figure 2.3
S1 and S2 Switch Assembly Locations
Installing Your Module
2–3
O
F
F
O
N
1 2 3 4 5 6 7 8
OPEN
Address Switch Assembly
(S1)
O
N
O
F
F
1 2 3 4
OPEN
Switch Assembly
(S2)
5 6
Address Switch Assembly (S1)
You use this switch assembly to select:
• the I/O rack number
• the first I/O group number
•
primary/complementary – I/O scanner communication with or without complementary I/O (for PLC-2 and PLC-5 family processors)
Switch Assembly (S2)
You use this switch assembly to select:
•
baud – a specific baud rate based on the maximum I/O chassis distance
•
primary/complementary – I/O scanner communication with or without complementary I/O (for PLC-2 family processors)
•
scan - select whether the processor will scan all slots in the chassis, or all but the last four slots in the chassis
Publication 1771-UM001A-US-P - February 2000
2–4
Installing Your Module
link response - unrestricted or series B emulation.
Certain scanner modules with multiple communication ports require a delay in the link turnaround time to allow the central processing unit (CPU) in the scanner sufficient time to service all communication ports. Without this delay, some incoming information may be missed while the scanner is servicing another port. This results in multiple communication retries.
To provide the necessary delay, set the link response switch
(position 5, switch S2) to the ON position.
Scanner modules which require a delay are:
Programmable Controller Scanner Module
PLCĆ2
PLCĆ3
1772ĆSD2
1775ĆS4A
1775ĆS4B
1775ĆS5
1775ĆSR5
1775ĆSR
•
noise immunity – enables backplane retries to occur when noise is detected on the I/O rack backplane. This feature is enabled when the switch is off. Do not use this switch position as a substitute for improper noise suppression.
Refer to the Table below for Figure and page numbers of switch settings for each processor family.
S1 and S2 Switch Settings for:
PLCĆ2 family processor
PLCĆ3 family processor
PLCĆ5 family, SLC and ControlLogix processors without complementary I/O
PLCĆ5 family, SLC and ControlLogix processor with complementary I/O
Refer to:
Figure 2.4, page 2-5
Figure 2.5, page 2-6
Figure 2.6, page 2-7
Figure 2.7, page 2-8
Publication 1771-UM001A-US-P - February 2000
Installing Your Module
Figure 2.4
Module Switch Assembly Settings for PLCĆ2 Family
Processors
2–5
(ON)
(OFF)
Address Switch Assembly
(S1)
1 2 3 4 5 6 7 8
(ON)
(OFF)
Switch Assembly
(S2)
1 2 3 4
5 6 Pressed in at top
(ON)
OPEN
OPEN
Off
Link Response Ć ON for series B emulation
OFF for unrestricted
ATTENTION: Link response switch must be ON when using the following scanner modules:
1772ĆSD2
Pressed in at bottom
(OFF)
First I/Ogroup number
(Table 2.A)
I/Orack number
(Table 2.A)
SD Ć always ON
SD2 Ć without complementary I/O
Ć always ON
SD2 Ć with complementary I/O Ć
ON Ć Primary chassis
OFF Ć Complementary chassis
Always ON
Switch Position
1 2
ON OFF
OFF OFF
ON
OFF
ON
ON
Maximum I/O chassis distance
57.6K Baud Ć 10,000ft
115.2K Baud Ć 5,000ft
Not Used
Not Used
Scan Ć ON for all but last 4 slots
OFF for all slots
SD Ć always OFF
SD2 Ć without complementary I/O Ć always OFF
SD2 Ć with complementary I/O Ć
ON Ć Primary chassis
OFF Ć Complementary chassis
10798ĆI
I/ORack
Number
1
4
5
6
2
3
7
Table 2.A
I/ORack Number and First I/OGroup Switch Selections for the Address Switch Assembly S1 (PLCĆ2 Family
Processors)
Switch Selections
4 5 6
On
On
On
On
Off
Off
Off
On
On
Off
Off
On
On
Off
On
Off
On
Off
On
Off
On
First I/OGroup
Number
0
2
4
6
Switch Selections
7 8
On
On
Off
Off
On
Off
On
Off
Publication 1771-UM001A-US-P - February 2000
2–6
Installing Your Module
Figure 2.5
Module Switch Assembly Settings for PLCĆ3 Family
Processors
Address Switch Assembly
(S1)
1 2 3 4 5 6 7 8
(ON)
(OFF)
OPEN
Switch Assembly (S2)
1 2 3 4
5 6
Pressed in at top
(ON)
I/Orack number
(Table 2.B)
First I/Ogroup number
(Table 2.B)
(ON)
(OFF)
Switch Position
1 2
Maximum I/O chassis distance
ON OFF
OFF OFF
OFF
ON
57.6K Baud Ć 10,000ft
115.2K Baud Ć 5,000ft
ON 230.4K Baud Ć 2,500ft
ON Not Used
1
1 230.4K Baud with 1775ĆS5 revision A/G, and
1775ĆSR5 revision A/G scanners only.
Always OFF
OPEN
Pressed in at bottom
(OFF)
Off
Link Response Ć ON for series B emulation
OFF for unrestricted
ATTENTION: Link response switch must be ON when using the following scanner modules:
1775ĆS4A
1775ĆS4B
1775ĆS5
1775ĆSR5
1775ĆSR
Scan Ć ON for all but last 4 slots
OFF for all slots
10799ĆI
Table 2.B
I/ORack Switch Selections for the Address Switch
Assembly (PLCĆ3 Family Processors)
Rack
# 1 2
Switch Setting
3 4 5 6
Rack
# 1 2
Switch Setting
3 4 5 6
Rack
# 1 2
Switch Setting
3 4 5 6
Rack
# 1 2
Switch Setting
3 4 5 6
00 On On On On On On 20 On Off On On On On 40 Off On On On On On 60 Off Off On On On On
01 On On On On On Off 21 On Off On On On Off 41 Off On On On On Off 61 Off Off On On On Off
02 On On On On Off On 22 On Off On On Off On 42 Off On On On Off On 62 Off Off On On Off On
03 On On On On Off Off 23 On Off On On Off Off 43 Off On On On Off Off 63 Off Off On On Off Off
04 On On On Off On On 24 On Off On Off On On 44 Of On On Off On On
05 On On On Off On Off 25 On Off On Off On Off 45 Off On On Off On Off
64 Off Off On Off On On
65 Off Off On Off On Off
06 On On On Off Off On 26 On Off On Off Off On 46 Off On On Off Off On 66 Off Off On Off Off On
07 On On On Off Off Off 27 On Off On Off Off Off 47 Off On On Off Off Off 67 Off Off On Off Off Off
10 On On Off On On On 30 On Off Off On On On 50 Off On Off On On On 70 Off Off Off On On On
11 On On Off On On Off 31 On Off Off On On Off 51 Off On Off On On Off 71 Off Off Off On On Off
12 On On Off On Off On 32 On Off Off On Off On 52 Off On Off On Off On 72 Off Off Off On Off On
13 On On Off On Off Off 33 On Off Off On Off Off 53 Off On Off On Off Off 73 Off Off Off On Off Off
14 On On Off Off On On 34 On Off Off Off On On 54 Off On Off Off On On 74 Off Off Off Off On On
15 On On Off Off On Off 35 On Off Off Off On Off 55 Off On Off Off On Off 75 Off Off Off Off On Off
16 On On Off Off Off On 36 On Off Off Off Off On 56 Off On Off Off Off On 76 Off Off Off Off Off On
17 On On Off Off Off Off
1st I/OGroup
Number
0
2
Switch Selections
7
On
On
8
On
Off
37 On Off Off Off Off Off
Note: Rack address 77 is an illegal configuration.
PLCĆ3 processors can scan racks 0Ć76.
57 Off On Off Off Off Off 77 Not valid
4
6
Off
Off
On
Off
Publication 1771-UM001A-US-P - February 2000
Installing Your Module
2–7
Figure 2.6
Module Switch Assembly Settings for PLCĆ5 Family, SLC and ControlLogix Processors Without Complementary I/O
Address Switch Assembly
(S1)
1 2 3 4 5 6 7 8
(ON)
(OFF)
OPEN
I/Orack number
(Table 2.C)
First I/Ogroup number
(Table 2.C)
Switch Position
1 2
Maximum I/O chassis distance (see note)
ON OFF 57.6K Baud Ć 10,000ft
OFF OFF 115.2K Baud Ć 5,000ft
OFF ON 230.4K Baud Ć 2,500ft
ON ON Not Used
Note: PLCĆ5/15 and 5/25 processors operate at 57.6K baud only.
(ON)
(OFF)
Switch Assembly
(S2)
1 2 3 4 5 6
OPEN
Off
Pressed in at top
(ON)
Pressed in at bottom
(OFF)
Link Response Ć ON for series B emulation
OFF for unrestricted
Scan Ć ON for all but last 4 slots
OFF for all slots
Always OFF 10800ĆI
Table 2.C
I/ORack Selection for PLCĆ5 Family Processors without Complementary I/O
Rack
# 1 2
Switch Setting
3 4 5 6
Rack
# 1 2
Switch Setting
3 4 5 6
00 On On On On On On 20 On Off On On On On
01 On On On On On Off 21 On Off On On On Off
02 On On On On Off On 22 On Off On On Off On
03 On On On On Off Off 23 On Off On On Off Off
04 On On On Off On On 24 On Off On Off On On
05 On On On Off On Off 25 On Off On Off On Off
06 On On On Off Off On 26 On Off On Off Off On
07 On On On Off Off Off 27 On Off On Off Off Off
10 On On Off On On On 30 On Off Off On On On
11 On On Off On On Off 31 On Off Off On On Off
12 On On Off On Off On 32 On Off Off On Off On
13 On On Off On Off Off 33 On Off Off On Off Off
14 On On Off Off On On 34 On Off Off Off On On
15 On On Off Off On Off 35 On Off Off Off On Off
16 On On Off Off Off On 36 On Off Off Off Off On
17 On On Off Off Off Off 37 On Off Off Off Off Off
PLCĆ5/11 processors can scan rack 03.
PLCĆ5/15 and PLCĆ5/20 processors can scan racks 01Ć03.
PLCĆ5/25 and PLCĆ5/30 processors can scan racks 01Ć07.
PLCĆ5/40 and PLCĆ5/40L processors can scan racks 01Ć17.
PLCĆ5/60 and PLCĆ5/60L processors can scan racks 01Ć27.
PLCĆ5/250 processors can scan racks 0Ć37.
1st I/O
Group
Number
0
2
4
6
7
Switch
Selections
8
On
On
On
Off
Off
Off
On
Off
Publication 1771-UM001A-US-P - February 2000
2–8
Installing Your Module
Figure 2.7
Module Switch Assembly Settings for PLCĆ5 Family, SLC and ControlLogix Processors With Complementary I/O
(ON)
(OFF)
Address Switch Assembly
(S1)
1 2 3 4 5 6 7 8
OPEN
(ON)
First I/Ogroup number
(Table 2.D)
I/Orack number
(Table 2.D)
ON Ć Primary chassis
OFF Ć Complementary chassis
Always ON
(OFF)
Switch Position
1 2
Maximum I/O chassis distance (see note)
ON OFF 57.6K Baud Ć 10,000ft
OFF OFF 115.2K Baud Ć 5,000ft
OFF ON 230.4K Baud Ć 2,500ft
ON ON Not Used
Note: PLCĆ5/15 and 5/25 processors operate at 57.6K
baud only.
Switch Assembly
(S2)
1 2 3 4
5 6
OPEN
Off
Pressed in at top
(ON)
Pressed in at bottom
(OFF)
Link Response Ć ON for series B emulation
ON Ć Primary chassis
Table 2.D
I/ORack Selection for PLCĆ5 Family Processors with
Complementary I/O
OFF for unrestricted
Scan Ć ON for all but last 4 slots
OFF for all slots
OFF Ć Complementary chassis
10801ĆI
I/O
Rack #
01
02
03
1 2
Switch
3 4 5 6
On On On On On Off
On On On On Off On
On On On On Off Off
04
05
On On On Off On On
On On On Off On Off
06
07
On On On Off Off On
On On On Off Off Off
See note below
Note: PLCĆ5/11 can scan rack 03.
PLCĆ5/20, PLCĆ5/30, PLCĆ5/40, PLCĆ5/60 can scan racks 01Ć07.
1st I/OGroup
Number
0
2
4
6
Switch Selections
7 8
On
On
Off
Off
On
Off
On
Off
Publication 1771-UM001A-US-P - February 2000
Installing Your Module
2–9
Setting the I/OChassis
Switches
After setting the adapter module switch assemblies, you must also
• set the I/O chassis backplane switches
Setting the Backplane Switch Assembly
The backplane switch assembly is located on the backplane of the
I/O chassis. You use it to select:
• the last state of all outputs
• the processor restart lockout feature
•
1/2-, 1- or 2-slot addressing
• the last chassis in the I/O system (for PLC-2 family processors)
Refer to the table below for backplane switch setting illustrations for the various processors.
Last State Switch Ć
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Always OFF
For Processor:
PLCĆ2
PLCĆ3
PLCĆ5
PLCĆ5 remote configuration
PLCĆ5/250
Refer to:
Figure 2.8, page 2-9
Figure 2.9, page 2-10
Figure 2.10, page 2-10
Figure 2.11, page 2-11
Figure 2.12, page 2-11
Figure 2.8
I/OChassis Backplane Switch Assembly Settings for
Remote Adapter Module in PLCĆ2 Family Processor System
Always OFF
ATTENTION: Set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected. If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection.
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switch Ć
ON Ć 1Ćslot addressing selected
OFF Ć 2Ćslot addressing selected
Last Chassis Switch Ć
ON Ć Chassis does not contain the highest numbered I/O group for the associated rack number
OFF Ć Chassis does contain the highest numbered I/O group for the associated rack number
If you have only a primary chassis, set this switch to OFF.
If you have both primary and complementary chassis, set the primary chassis to ON and the complementary chassis to OFF.
1080
Publication 1771-UM001A-US-P - February 2000
2–10
Installing Your Module
Figure 2.9
I/OChassis Backplane Switch Assembly Settings for
Remote Adapter Module in PLCĆ3 Family Processor System
ATTENTION: Set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected. If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection.
OFF Ć All other times.
Always OFF
1771ĆA1/A1B chassis in PLCĆ3 Backup
ON Ć If any 1771ĆA1/A1B chassis contains starting I/O group 0 with 2Ćslot addressing and the PLCĆ3 is configured in backup mode.
ATTENTION: Set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected. If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection.
Always OFF
Last State Switch Ć
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switches
5 6
OFF
ON
OFF
ON
ON
OFF
OFF
ON
You select 1/2Ćslot addressing
You select 1Ćslot addressing
You select 2Ćslot addressing
Not allowed
10802ĆI
Figure 2.10
I/OChassis Backplane Switch Assembly Settings for
Remote Adapter Module in PLCĆ5 Family Processor System
Last State Switch Ć
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switches
5 6
OFF
ON
OFF
ON
ON
OFF
OFF
ON
You select 1/2Ćslot addressing
You select 1Ćslot addressing
You select 2Ćslot addressing
Not allowed
Last Chassis Switch Ć
ON Ć Chassis does not contain the highest numĆ bered I/O group for the associated rack number
OFF Ć Chassis does contain the highest numbered
I/O group for the associated rack number
If you have only a primary chassis, set this switch to OFF.
If you have both primary and complementary chassis, set the primary chassis to ON and the complementary chassis to OFF.
10802ĆI
Publication 1771-UM001A-US-P - February 2000
Installing Your Module
2–11
Figure 2.11
I/OChassis Backplane Switch Assembly Settings for
Remote Adapter Module in PLCĆ5 Family, SLC and
ControlLogix Processor Systems in Remote Configuration
ATTENTION: If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection. We recommend that you set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected.
Always OFF
Always OFF
Last State Switch Ć
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switches
5 6
OFF
ON
OFF
ON
ON
OFF
OFF
ON
You select 1/2Ćslot addressing
You select 1Ćslot addressing
You select 2Ćslot addressing
Not allowed
10802ĆI
Figure 2.12
I/OChassis Backplane Switch Assembly Settings for
Remote Adapter Module in PLCĆ5/250 Processor System
ATTENTION: Set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected. If switch 1 is set to the
ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection.
Always OFF
Always OFF
Last State Switch Ć
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switches
5 6
OFF
ON
OFF
ON
ON
OFF
OFF
ON
You select 1/2Ćslot addressing
You select 1Ćslot addressing
You select 2Ćslot addressing
Not allowed
10802ĆI
Publication 1771-UM001A-US-P - February 2000
2–12
Installing Your Module
Setting the I/OChassis
Power Supply
Configuration Plug
You use the I/O chassis power-supply configuration plug (Figure
2.13) to identify the type of power supply you use with your remote chassis. This configuration plug is located on the backplane of series
B I/O chassis.
Figure 2.13
Series B I/OChassis Power Supply Configuration Plug
Settings
For Use With: Set Chassis Configuration Plug to:
Y N power supply module installed in chassis
Y" position external power supply in your remote system
N" position
Y N
I/O Chassis
Power Supply
Configuration
Plug
Y N
USING
POWER SUPPLY
MODULE IN
THIS CHASSIS?
Wiring the Field Wiring
Arm
The field wiring arm provides connection points for:
•
I/O communication cables
• a user-supplied I/O chassis restart pushbutton
The wiring arm pivots on the front of the chassis to connect with the module’s printed circuit board, allowing you to remove the adapter module without disconnecting the system wiring.
Connect input/output cables to the field wiring arm as shown in
Figure 2.14.
Publication 1771-UM001A-US-P - February 2000
Installing Your Module
2–13
Figure 2.14
Field Wiring Arm Connection Diagram for the 1771ĆASB Series E
Remote I/O Cable
AllenĆBradley Cable (cat. no. 1770ĆCD)
Blue
Shield
Clear
ATTENTION: Do not make connections to terminals 4 through 10. These terminals are connected internally (1 to 4, 2 to 5 and
3 to 6) and cannot be used for any other purpose.
User supplied
I/O rack restart pushbutton
7
8
9
5
6
1
2
3
4
10
11
12
1 Line 1
2 Shield Cable
3 Line 2
4 No connection
5 No connection
6 No connection
7 No connection
8 No connection
9 No connection
10 No connection
11 In
Reset
12 Ret
!
17343
ATTENTION: Do not remove or insert the adapter module from the I/O chassis while system power is on.
Otherwise, you may damage module circuitry.
Terminals 1 and 4, 2 and 5, and 3 and 6 are internally connected on the module. If you use these terminals (4, 5, and 6) for connection of additional adapter modules, you disconnect the remaining adapter modules in the series connection when you disconnect the remote
I/O adapter module wiring arm. If this is unsuitable for your application, make your connections to terminals 1, 2, and 3 only.
Publication 1771-UM001A-US-P - February 2000
2–14
Installing Your Module
Installing the Terminator
If this is the last remote I/O adapter on the link, you must use a terminating resistor to terminate both ends of the remote I/O link
(scanner end and last adapter end). Connect the terminator across terminals 1 (blue) and 3 (clear).
The size of the terminator is determined by the system configuration.
Older configurations use a 150 ohm resistor at both ends. With newer products that can support it, you can use an 82 ohm terminator at both ends. The 82 ohm terminators provide “extended node” capability which allows you to have up to 32 physical devices on the
RIO link. (The number of logical racks capable of being addressed by the scanner is not affected.) This allows 1/4, 1/2 and 3/4 racks,
Dataliners, Redipanels and Panelview devices to be attached to the link.
!
ATTENTION: Devices that are operating at 230.4K
Baud must have 82 ohm terminators in place for proper operation.
Compatibility of 1771
Remote I/OProducts with
Extended Node Numbers
Certain products are not compatible with the extended node capabilities obtained with the use of the 82 ohm terminator resistors.
These products are listed below.
Table 2.E
NonĆcompatible Products
Device
Scanners Ć
Adapters Ć
1771ĆSN
1771ĆSD
1772ĆSD2
1775ĆSR
1775ĆS4A
1775ĆS4B
1771ĆAS
1771ĆASB
1771ĆDCM
Miscellaneous Ć 1771ĆAF
1771ĆAF1
Series
All
All
All
All
All
All
All
Series A
All
All
All
Publication 1771-UM001A-US-P - February 2000
Module Installation
lockingĆbar pins
12453ĆI front of chassis
Summary
Installing Your Module
2–15
Once you’ve determined the power requirements, keying, and wiring for your adapter module, and have set the appropriate switch assemblies, you can use the following procedure to install it.
Refer to the Industrial Automation Wiring and Grounding Guidelines for Noise Immunity (publication 1770-4.1) for proper grounding and wiring methods to use when installing your module.
!
ATTENTION: Remove system power before removing or installing your module in the I/O chassis.
Failure to observe this warning could damage module circuitry and injure people.
1.
Remove power from the I/O chassis before inserting (or removing) the module.
2.
On chassis equipped with a chassis locking bar, pull the locking-bar pins to release the locking bar and swing it up.
3.
Insert the module into slot.
4.
Place the module in the plastic tracks on the top and bottom of the leftmost slot. These slots guide the module into position.
5.
Press firmly and evenly to seat the module in its backplane connectors.
!
ATTENTION: Do not force the module into the backplane connector. If you cannot seat the module with firm pressure, check the alignment and keying.
Forcing the module can damage the backplane connector or the module.
6.
Snap the chassis locking bar (or locking latch on earlier chassis) over the top of the module to secure it. Make sure the locking pins on the locking bar are fully engaged.
Note: The chassis locking bar will not close if all modules are not properly seated.
7.
Swing field wiring arm up into place and press firmly until it latches.
8.
Reapply system power and check for proper operation.
In this chapter you learned how to install your adapter module.
Chapter 3 tells you how to configure your module.
Publication 1771-UM001A-US-P - February 2000
2–16
Installing Your Module
Publication 1771-UM001A-US-P - February 2000
Chapter Objectives
Hardware Addressing
Chapter
3
Addressing Modes for Your
Remote I/O
When you configure your remote I/O system, you must consider:
• how to address your I/O
• what combination of I/O modules and I/O chassis you can use
These topics are discussed in this chapter.
Programmable controllers that use the 1771-ASB remote I/O adapter module can address their I/O in 2-slot, 1-slot or 1/2 slot I/O groups.
These three addressing methods are referred to as 2-slot addressing,
1-slot addressing and 1/2-slot addressing.
You select the addressing method with switch 5 and 6 in the I/O chassis backplane switch assembly. You make this selection for each chassis independently with only one method of addressing for each chassis.
I/O groups are made up of I/O terminals (Figure 3.1). An I/O group is an addressing unit that can contain up to 16 input terminals and 16 output terminals. You select an I/O chassis to have either 2-slot,
1-slot or 1/2-slot I/O groups.
Publication 1771-UM001A-US-P - February 2000
3–2
Addressing Modes for Your Remote I/O
Figure 3.1
An I/OGroup Ć Up to 16 Input Terminals and 16 Output
Terminals
In p u t
T e rm in a ls
1 4
1 5
1 6
1 7
1 0
1 1
1 2
1 3
0 4
0 5
0 6
0 7
0 0
0 1
0 2
0 3
O u tp u t
T e rm in a ls
1 4
1 5
1 6
1 7
1 0
1 1
1 2
1 3
0 4
0 5
0 6
0 7
0 0
0 1
0 2
0 3
O u tp u t o r
In p u t
T e rm in a ls
1 4
1 5
1 6
1 7
1 0
1 1
1 2
1 3
0 4
0 5
0 6
0 7
0 0
0 1
0 2
0 3
2Ćslot I/O Group 1Ćslot I/O Group
13073
I/O racks are made up of I/O groups (Figure 3.1). An I/O rack is an addressing unit that can contain up to eight I/O groups.
Figure 3.2
An I/ORack Ć Up to Eight I/OGroups
0 1 2 3 4 5 6 7
13074
Publication 1771-UM001A-US-P - February 2000
Addressing Modes for Your Remote I/O
3–3
2ĆSlot Addressing
Definition: The processor addresses two I/O module slots as one I/O group.
Concept: Each physical 2-slot I/O group is represented by a word in the input image table and a word in the output image table. Each input terminal corresponds to a bit in the input image table word and each output terminal corresponds to a bit in the output image table word.
The maximum number of bits available for one 2-slot I/O group is
32: 16 bits in the input image table and 16 bits in the output image table. The type of module you install (either 8 or 16-point I/O) determines the number of bits in the words that are used.
You select 2-slot addressing by setting switches 5 and 6 of the I/O chassis backplane switch assembly to the OFF position.
I/OChassis
Series
A, B
B or later only
I/OModule Combinations
The combination of I/O modules you can use depends on the addressing method and I/O chassis you select.
Table 3.A lists acceptable I/O module combinations with 2-slot addressing.
Table 3.A
I/OModule Combinations With 2Ćslot Addressing
I/OModule Combinations Per I/OGroup
2 8Ćpoint input modules
2 8Ćpoint output modules
1 8Ćpoint input and output module
1 8Ćpoint input and 1 block transfer output module
1 block transfer and 1 8Ćpoint output module
2 block transfer modules
1 16Ćpoint input and output module
1 16Ćpoint and 1 8Ćpoint output module
1 8Ćpoint input and 1 16Ćpoint output module
Data Table Bits Used
Input Image Table Output Image Table
16 0
16
16
16
16
8
0
8
8 16
16
16
8
8
16
16
8
Publication 1771-UM001A-US-P - February 2000
3–4
Addressing Modes for Your Remote I/O
Using StandardĆdensity I/O(8 point) Modules
Standard-density I/O modules provide eight input terminals or eight output terminals. Figure 3.3 illustrates the 2-slot I/O group concept with two 8-point input modules. Figure 3.4 shows an 8-point input module and an 8-point output module in a 2-slot I/O group.
Figure 3.3
Two 8Ćpoint Input Modules Using One Word of the Input
Image Table
2Ćslot I/O Group
Input
Term inals
04
05
06
07
00
01
02
03
Input
Term inals
10
11
12
13
14
15
16
17
O utput im age table word corresponding to the I/O group.
17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 unused
Input im age table word corresponding to the I/O group.
17 16 15 14 13 12
11
10 07 06 05 04 03 02 01 00
11867
Publication 1771-UM001A-US-P - February 2000
Addressing Modes for Your Remote I/O
Figure 3.4
8Ćpoint Input and Output Modules Using Eight Bits of the
Input Image Table Word and Eight Bits of the Output Image
Table Word
2Ćslot I/O Group
3–5
Input
Term inals
04
05
06
07
00
01
02
03
O utput
Term inals
14
15
16
17
10
11
12
13
O utput im age table word corresponding to the I/O group.
17 16 15 14 13 12
11
10 07 06 05 04 03 02 01 00
O utput bits used unused
Input im age table word corresponding to the I/O group.
17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
Always 0 Input bits used 14965
Using HighĆdensity (16 point) I/OModules
16-point I/O modules provide 16 input terminals or 16 output terminals. 16-point I/O modules use a full word in the input or output image table when they are addressed as a 2-slot I/O group
(Figure 3.5). Two 16-point modules (one input and one output) can be used in a 2-slot I/O group.
Publication 1771-UM001A-US-P - February 2000
3–6
Addressing Modes for Your Remote I/O
Figure 3.5
16Ćpoint Input and Output Modules Using Two Words of the
Image Table
2Ćslot I/O Group
Input
Term inals
O utput
Term inals
13
14
13
14
O utput im age table word corresponding to the I/O group.
17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
Input im age table word corresponding to the I/O group.
17 16 15 14 13 12
11
10 07 06 05 04 03 02 01 00
15559
Because these modules use a full word in the image table, the only type of module you can use in a 2-slot I/O group with a 16-point module is one that performs the opposite (complementary) function; an input module complements an output module and vice-versa.
You can use an 8-point module with a 16-point module in a 2-slot group; it must perform the opposite function. However, eight bits in the I/O image table are unused.
Publication 1771-UM001A-US-P - February 2000
Addressing Modes for Your Remote I/O
3–7
Input
Term inals
04
05
06
07
00
01
02
03
Left
Slot
0
00Ć07 10Ć17
Right
Slot
Identifying I/OGroups
You identify your I/O groups in one of three ways, depending on the addressing method and I/O chassis you use. Refer to:
•
Figure 3.6 for 2-slot addressing when using series A I/O chassis.
•
Figure 3.7 for 2-slot addressing when using series B I/O chassis.
•
Figure 3.13 for 1-slot addressing when using series B I/O chassis.
O utput
Term inals
14
15
16
17
10
11
12
13
Figure 3.6
Identifying 2Ćslot I/OGroups with Series A I/OChassis
2-slot
I/O G roup
Example: Using I/O Group 0, a sample physical address
(with its corresponding data table address) is:
Physical Address
1 1 0 12
Type of I/O module
1 = Input
0 = Output
I/O Rack Number
Input im age table w ord corresponding to the I/O group.
17 16 15 14
Module
Terminal
Number
13 12
11
10 07 06 05 04 03 02 01 00
Type of I/O module
1 = Input
0 = Output
I/O Rack Number
I/O Group
Number
Module
Terminal
Number
I/O Group
Number
1 1 0
10808ĆI
Publication 1771-UM001A-US-P - February 2000
3–8
Addressing Modes for Your Remote I/O
Figure 3.7
Identifying 2Ćslot I/OGroups with Series B I/OChassis
R
G
1
0
00Ć07
10Ć17
G
0
00Ć07
10Ć17
Input
Term inals
01
02
13
14
Left
Slot
Right
Slot
2-slot I/O G roup
Example: Using I/O Group 0 and 16Ćpoint modules, a sample physical address (with its corresponding data table address) is:
Physical Address
1 1 0 12
Type of I/O module
1 = Input
0 = Output
I/O Rack Number
Module
Terminal
Number
I/O Group
Number
O utput
Term inals
01
02
13
14
Input im age table w ord corresponding to the I/O group.
17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
1 1 0
Module
Terminal
Number
Rules for module terminal point assignments are:
Standard density discrete I/O module in the left slot has terminals numbered 00Ć07. (Mark top only.)
Standard density discrete I/O module in the right slot has terminals numbered 10Ć17. (Mark bottom only.)
High density (16Ćpoint) discrete I/O module in either slot has terminals numbered 00Ć07 and 10Ć17.
Type of I/O module
1 = Input
0 = Output
I/O Rack Number
I/O Group
Number
10809ĆI
Publication 1771-UM001A-US-P - February 2000
Addressing Modes for Your Remote I/O
3–9
Complementary I/Owith
2ĆSlot Addressing
P rim a ry 1 6 -s lo t
C h a s s is
I/ O G ro u p
N u m b e r
C o m p le m e n ta ry
1 6 -s lo t C h a s s is
Some processors support a complementary I/O configuration. Refer to the user manual for your processor to see if it supports this type of configuration.
You configure complementary I/O by duplicating an I/O rack number of one I/O chassis (primary) in another I/O chassis
(complementary), I/O group for I/O group. The I/O modules in the complementary chassis perform the opposite function of the corresponding modules in the primary chassis.
I
8
0
With 2-slot addressing you install, as a pair, the same type of 8-point
I/O module in an I/O group of the primary chassis. You install, as a pair, the opposite type of 8-point I/O module in the corresponding
I/O group of the complimentary chassis.
I
8
O
8
For example, with an I/O chassis set for 2-slot addressing, place two
8-point input modules in I/O group 0 of the primary chassis. In I/O group 0 of the complementary chassis, place two 8-point output modules (Figure 3.8). Use the same type of 8-point I/O modules in both slots of a single I/O group.
Figure 3.8
Example of Complementary I/OConfiguration with 2Ćslot
Addressing
O
8
I
16
O
16
O
8
O
8
BT
O
I
8
8
BT
2
BT O
8
Double-slot
BT
Double-slot
BT
1 2
O
8
O
8
I
8
I
8 P
T
E
M
Y
P
T
E
M
Y
3 4 5 6
O
8
1
O
8
E x a m p le A
P
T
E
M
Y
3
O
8
3
P
T
E
M
Y
3
P
T
E
M
Y
3
P
T
E
M
Y
3
O
8
7
P
T
E
M
Y
3
O
8
P rim a ry 1 6 -s lo t
C h a s s is
I/O G ro u p
N u m b e r
C o m p le m e n ta ry
C h a s s is N o t
A llo w e d
E x c e p t fo r O u tp u t
I
16
O
16
0
I
16
1
O
16
I
16
2
O
16
I
16
O
16
I
16
3 4
O
16
I
16
O
16
5
I
16
O
16
6
I
16
O u tp u ts in th e c o m p le m e n ta ry c h a s s is u s e th e s a m e b its in th e o u tp u t im a g e ta b le a s th e o u tp u ts in th e p rim a ry c h a s s is .
7
O
16
I = Input M odule
O = O utput M odule
BT = Block transfer M odule
E x a m p le B
1 O utput m odules use the sam e output im age table bits
2 C an be 8-point input or output m odule or single-slot block transfer m odule
3 M ust be em pty if corresponding prim ary slot is block transfer m odule
13079
Publication 1771-UM001A-US-P - February 2000
3–10
Addressing Modes for Your Remote I/O
Follow these guidelines when configuring your remote system with complementary I/O chassis:
•
Assign the complementary I/O rack number to a chassis of equal or smaller size than the primary chassis.
•
If the complementary chassis is smaller than the primary one, set the last chassis switch on the complementary chassis to the ON position, unless the adapter is in the faulted I/O search mode.
•
For PLC-2 family processors:
•
Connect the complementary chassis to the same scanner channel as the primary chassis.
•
Connect the complementary chassis to the remote trunkline as though they were additional primary chassis.
•
For PLC-3 processors, connect the complementary chassis to a different scanner channel as the primary chassis.
•
Assign the same beginning I/O group number to both I/O racks.
•
You cannot configure complementary I/O in a chassis that uses a combination of 2-slot addressing and 16-point I/O.
•
You cannot use 32-point I/O modules in a complementary I/O configuration when you select 2-slot or 1-slot addressing.
•
You can place an output module opposite another output module; they reflect the same bits in the output image table.
•
Do not place an input module opposite an input module.
You can use the following modules in either primary or complementary I/O chassis opposite any type of module:
Catalog Number
1771ĆE1, ĆE2, ĆE3
1771ĆE4
1771ĆIY
1771ĆES
1771ĆKA2
1771ĆKE
1771ĆKG
1771ĆOJ
1771ĆAF
Description
Analog Input Expander Assembly
Analog Output Expander Assembly
Thermocouple Input Expander Module Assembly
Servo (Encoder Feedback) Expander Assembly
Communication Adapter Module
Communication Controller Module
PLCĆ2 Family/RSĆ232ĆC Interface Module
Pulse Output Expander Assembly
Fiber Optics Converter Module
Publication 1771-UM001A-US-P - February 2000
Addressing Modes for Your Remote I/O
3–11
P rim a ry 1 6 -s lo t
C h a s s is
I/ O G ro u p
N u m b e r
C o m p le m e n ta ry
1 6 -s lo t C h a s s is
I
8
0
I
8
O
8
O
8
O
8
I
8
1
Module Placement with 2Ćslot Addressing
Figure 3.9 shows possible module placement when configuring complementary I/O with 2-slot addressing.
O
8
Figure 3.9
Complementary I/OConfigurations with 2Ćslot Addressing
I
16
O
16
O
8
O
8
BT
I
O
8
8
BT
2
BT O
8
Double-slot
BT
Double-slot
BT
2
I
8 P
T
E
M
Y
P
T
E
M
Y
3 4
O
8
1
O
8
E x a m p le A
P
T
E
M
Y
3
O
8
3
5 6
P
T
E
M
Y
3
P
T
E
M
Y
3
P
T
E
M
Y
3
O
8
7
P
T
E
M
Y
3
O
8
P rim a ry 1 6 -s lo t
C h a s s is
I/O G ro u p
N u m b e r
C o m p le m e n ta ry
C h a s s is N o t
A llo w e d
E x c e p t fo r O u tp u t
I
16
O
16
0
I
16
1
O
16
I
16
2
O
16
I
16
3
O
16
O u tp u ts in th e c o m p le m e n ta ry c h a s s is u s e th e s a m e b its in th e o u tp u t im a g e ta b le a s th e o u tp u ts in th e p rim a ry c h a s s is .
E x a m p le B
I
16
4
O
16
I
16
5
O
16
I
16
6
O
16
I
16
7
O
16
I = Input M odule
O = O utput M odule
BT = Block transfer M odule
1 O utput m odules use the sam e output im age table bits
2 C an be 8-point input or output m odule or single-slot block transfer m odule
3 M ust be em pty if corresponding prim ary slot is block transfer m odule
13079
Follow these guidelines when you select 2-slot addressing:
•
Place an 8-point output module opposite a 16-point input module.
•
An I/O group having a 16-point input and output module cannot have a corresponding I/O group in the complementary chassis.
•
You can place an output module opposite another output module; they reflect the same bits in the output image table.
You can use block-transfer modules in a complementary I/O system, with these restrictions:
Publication 1771-UM001A-US-P - February 2000
3–12
Addressing Modes for Your Remote I/O
•
When using double-slot block-transfer modules:
•
The left slot of the complementary I/O group must be empty.
•
You can only place an 8-point output module (if any) in the right slot of the complementary I/O group.
•
When using single-slot block-transfer modules:
•
The right slot of the primary I/O group can be another single-slot block-transfer module, or an 8-point input or output module.
•
The left slot of the complementary I/O group must be empty.
•
You can place an 8-point output module in the right slot of the complementary I/O group; this slot must be empty if the corresponding slot in the primary I/O group is a single-slot block-transfer module.
When you select 2-slot addressing, each pair of slots (one I/O group) is assigned to the corresponding pair of words in the input and output image tables. You assign one I/O rack number to eight I/O groups (Figure 3.10).
Figure 3.10
I/OImage Table and Corresponding Hardware for One
Assigned Rack Number with 2Ćslot Addressing
O u tp u t Im a g e T a b le
W o rd #
6
7
4
5
2
3
0
1
0
0
1
1 2
2 3
3
4
4
5
5
6
6
7
7
I/O Group Designation
An I/O chassis containing 16Ćpoint modules
NOTE: Modules can also be installed like this: I O O I
I O I O I O I O I O I O I O I O
Input/Output Designation
In p u t Im a g e T a b le
W o rd #
6
7
4
5
2
3
0
1
14966
Publication 1771-UM001A-US-P - February 2000
1ĆSlot Addressing
Addressing Modes for Your Remote I/O
3–13
Definition: The processor addresses one I/O module slot as one I/O group.
Concept: The physical address of each I/O group corresponds to an input and output image table word. The type of module you install
(8, 16, or 32-point) determines the number of bits in these words that are used.
You select 1-slot addressing by setting switches 5 and 6 of the I/O chassis backplane switch assembly:
• switch 5 to the ON position
• switch 6 to the OFF position
With 1-slot addressing, because 16 input AND 16 output bits are available in the processor’s image table for each I/O slot, you can use any mix of 8 or 16-point I/O modules in the I/O chassis.
To use 32-point I/O modules with 1-slot addressing, you must install, as a pair, an input module and an output module in 2 adjacent slots of the I/O chassis beginning with I/O slot 0 (Figure 3.11). If you cannot pair the modules in this way, one of the two slots of the pair must be empty. For example, if I/O slot 0 holds a 32-point input module, I/O slot 1 can hold an 8, 16, or 32-point output module (or a module that uses the backplane for power only); otherwise, it must be empty.
Figure 3.11
Using 32Ćpoint I/OModules with 1Ćslot Addressing
I/O
I/O I/O
Input/Output Pairs
I/O I/O I/O I/O I/O
0 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5
I/O Chassis Slot Number
14973
Publication 1771-UM001A-US-P - February 2000
3–14
Addressing Modes for Your Remote I/O
Thirty-two-point I/O modules need 32 input or 32 output bits in the processor’s image table. Because only 16 input and 16 output bits are available for each I/O group, to address a 32-point I/O module, the remote I/O adapter module uses the unused input or output word associated with the adjacent I/O slot.
Refer to Figure 3.12. When the 1771-ASB remote adapter module addresses a 1-slot I/O group containing a 32-point I/O module, the adapter module uses the unused word assigned to the adjacent I/O module slot. For example, the adapter module uses the unused input word associated with I/O slot 1 (because that slot must hold an output module and does not use its input word).
Figure 3.13 illustrates the concept of 1-slot addressing with two
32-point I/O modules.
Figure 3.12
1Ćslot I/OGroup Concept With 32Ćpoint I/OModules
32-point I/O M odules
Im age Table
W ords Allocated for I/O G roup 0
Input W ord 0
O utput W ord 0
Im age Table
W ords Allocated for I/O G roup 1
Input W ord 1
O utput W ord 1
Slot 0
Input M odule
I/O G roup 0
Slot 1
O utput M odule
I/O G roup 1
14258
Publication 1771-UM001A-US-P - February 2000
Addressing Modes for Your Remote I/O
3–15
Identifying I/OGroups
You identify your I/O groups in one of three ways, depending on the addressing method and I/O chassis you use. Refer to Figure 3.13 for
1-slot addressing when using series B I/O chassis.
Figure 3.13
Identifying 1Ćslot I/OGroups with Series B I/OChassis
I/O Rack Number
I/O Group
Number
R
G
1
0
00Ć07
10Ć17
G
1
00Ć07
10Ć17
In p u t
T e rm in a ls
1 4
1 5
1 6
1 7
1 0
1 1
1 2
1 3
0 4
0 5
0 6
0 7
0 0
0 1
0 2
0 3
Example: Using I/O Group 0 and 16Ćpoint modules, a sample physical address (with its corresponding data table address) is:
Physical Address
2 -s lo t I/ O G ro u p
Type of I/O module
1 = Input
0 = Output
I/O Rack Number
1
1
1
1
0
1
12
12
I/O Group 0
I/O Group 1
Module
Terminal
Number
I/O Group
Number
In p u t
T e rm in a ls
1 4
1 5
1 6
1 7
1 0
1 1
1 2
1 3
0 4
0 5
0 6
0 7
0 0
0 1
0 2
0 3
In p u t im a g e ta b le w o rd c o rre s p o n d in g to th e I/O g ro u p .
1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0
1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0
Module
Terminal
Number
Type of I/O module
1 = Input
0 = Output
I/O Rack Number
I/O Group
Number
Rules for module terminal point assignments are:
Standard density discrete I/O module in the left slot has terminals numbered 00Ć07. (Mark top only.)
High density (16Ćpoint) discrete I/O module in either slot has terminals numbered 00Ć07 and 10Ć17.
1 1
0
1 1
1
I/O Group 0
I/O Group 1
10810ĆI
Publication 1771-UM001A-US-P - February 2000
3–16
Addressing Modes for Your Remote I/O
P rim a ry 1 6 -s lo t
C h a s s is
I
I/ O G ro u p
N u m b e r
0
C o m p le m e n ta ry
1 6 -s lo t C h a s s is
O
1
O
I O
I
2
I
O
3
Module Placement with 1Ćslot Addressing
Figure 3.14 shows possible module placement for complementary
I/O with 1-slot addressing.
Figure 3.14
Complementary I/OConfigurations with 1Ćslot Addressing
O
4
I O
5
I
O
1
BT
D ouble-slot
BT
O
6 7 0 1
O
1
P
T
E
M
Y
3
E x a m p le A
P
T
E
M
Y
3
I, O ,
BT
2
I
2 3
O
I
4
O
I
5
O
I O
6
I
O
7
I
P rim a ry 1 6 -s lo t
C h a s s is
I/ O G ro u p
N u m b e r
C o m p le m e n ta ry
1 6 -s lo t C h a s s is
0
O
I
1
I
2
O O
I
3
I
4
I
5
O O O
I
I = Input M odule (8- or 16-point)
O = O utput M odule (8- or 16-point)
BT = Block transfer M odule
6
I
7
I
0 1
O O O
I I
2
O O
I
3
O
I
4
I
5
I
6
I
7
O O O O
I
E x a m p le B
1 O utput m odules use the sam e output im age table bits
2 Can be input or output m odule (8- or 16-point) single-slot block tran fer m odule
3 M ust be em pty if corresponding prim ary slot is block transfer m odule s
Follow these guidelines when you select 1-slot addressing:
•
Place input modules opposite output modules; place output modules opposite input modules.
•
You can use 8-point or 16-point I/O modules.
•
Output modules placed opposite output modules reflect the same bits in the output image table.
You can use block-transfer modules in a complementary I/O configuration with 1-slot addressing. Remember that when you select 1-slot addressing, an I/O group is one module slot. Use block-transfer modules with these restrictions:
13080
Publication 1771-UM001A-US-P - February 2000
Addressing Modes for Your Remote I/O
3–17
•
When using double-slot block-transfer modules:
–
The left slot of the two corresponding I/O groups must be empty.
–
You can place any single-slot I/O module in the right slot of the two corresponding I/O groups.
When using single-slot block-transfer modules, the corresponding
I/O group must be empty.
Assigning I/ORack
Numbers with 1ĆSlot
Addressing
I/O Group
Number
Assigned I/O Rack
Number 0
The following rules apply when you assign I/O rack numbers:
When you select 1-slot addressing, set switches of switch assembly
S1 to assign the first I/O rack number of the chassis. The remote I/O adapter module automatically assigns the next higher I/O rack number to the remaining I/O groups of the chassis.
For example, if you want a 16-slot chassis that you set for 1-slot addressing to begin with I/O rack number 0, set switches of switch assembly S1 for I/O rack number 0. The adapter module automatically assigns I/O rack number 1 to the remaining I/O groups of the chassis (Figure 3.15).
Figure 3.15
Assigning I/ORack Numbers with 1Ćslot Addressing
Assigned I/O Rack
Number 1
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
Set switches of switch assembly S1 on the remote I/O adapter module for I/O rack number 0. The adapter automatically assigns I/O rack numĆ ber 1 to the remaining I/O group of the chassis.
1771ĆA4B I/O Chassis using 1Ćslot addressing
13077
You assign one I/O rack number to eight I/O groups, regardless of which addressing method you select.
Publication 1771-UM001A-US-P - February 2000
3–18
Addressing Modes for Your Remote I/O
0 1 2 3 4 5 6 7
When you select 1-slot addressing, each individual slot (one I/O group) is assigned to the corresponding word in the input or output image tables. You assign one I/O rack number to eight I/O groups
(Figure 3.16).
Figure 3.16
I/OImage Table and Corresponding Hardware for One
Assigned Rack Number with 1Ćslot Addressing
O utput Im age Table
W ord #
6
7
4
5
2
3
0
1
Not
Used
I/O Group Designation
An I/O chassis with 1Ćslot addressing
I I I I O O O O
Input/Output Designation
W ord #
2
3
0
1
6
7
4
5
Input Im age Table
Always
0
14967
Publication 1771-UM001A-US-P - February 2000
Addressing Modes for Your Remote I/O
3–19
1/2Ć Slot Addressing
Definition: The processor addresses one-half of an I/O module slot as one I/O group.
Concept: The physical address of each I/O slot corresponds to two input and two output image table words. The type of module you install (8-, 16-, or 32-point) determines the number of bits in these words that are used.
You select 1/2-slot addressing by setting switches 5 and 6 of the I/O chassis backplane switch assembly:
• switch 5 to the OFF position
• switch 6 to the ON position
With 1/2-slot addressing, since 32 inputs bits AND 32 output bits are available in the processor’s image table for each I/O group, you can mix 8, 16 and 32-point I/O modules in any order in the I/O chassis.
Figure 3.17 illustrates the 1/2-slot addressing concept with a 32-point
I/O module. A 32-point I/O module (with 1/2-slot I/O groups) uses two words of the image table. When you use 8 and 16-point I/O modules with 1/2-slot addressing, you get fewer total I/O points.
1 / 2 -slo t
I/ O G ro u p
0
In p u t
1 1
1 3
1 5
1 7
-
0 1
0 3
0 5
0 7
-
#
1 / 2 -slo t
I/ O G ro u p
1
1 1
1 3
1 5
1 7
-
0 1
0 3
0 5
0 7
-
Figure 3.17
1/2Ćslot Addressing Concept
3 2 -p o in t In p u t M o d u le
In p u t
#
1 0
1 2
1 4
1 6
-
0 0
0 2
0 4
0 6
-
1 0
1 2
1 4
1 6
-
0 0
0 2
0 4
0 6
-
1 / 2 -slo t
I/O G ro u p
0
1 / 2 -slo t
I/O G ro u p
1
1 7
In p u t W o rd 0
1 0 7
1 7
O u tp u t W o rd 0
1 0 7
U n u se d
0
0
In p u t W o rd 1
1 7
1 7
1 0 7
O u tp u t W o rd 1
1 0 7
U n u se d
0
0
Im a g e T a b le
W o rd s A llo ca te d fo r I/O G ro u p 0
Im a g e T a b le
W o rd s A llo ca te d fo r I/ O G ro u p 1
14259
Publication 1771-UM001A-US-P - February 2000
3–20
Addressing Modes for Your Remote I/O
Assigning I/ORack Numbers with 1/2Ćslot Addressing
The following rules apply when you assign I/O rack numbers for
1/2-slot addressing:
•
One assigned I/O rack number is made up of eight I/O groups
(Figure 3.18).
•
The maximum number of I/O racks you can assign to the different chassis sizes are:
one I/O rack to 1771-A1B chassis
two I/O racks to 1771-A2B chassis
three I/O racks to 1771-A3B chassis
four I/O racks to 1771-A4B chassis
•
You can mix addressing methods in your remote system on a chassis-by-chassis basis (1-slot and 1/2-slot addressing with
32-point I/O modules).
•
You cannot assign one I/O rack number to more than one I/O chassis when you select 1/2-slot addressing.
•
Each I/O chassis begins an assigned I/O rack number. Make sure that you set switches 7 and 8 of switch assembly SW1 to the ON position when you select 1/2-slot addressing. The remote I/O adapter module automatically assigns the next higher I/O rack number(s) to the remaining I/O groups of the chassis.
Publication 1771-UM001A-US-P - February 2000
0
1
2
3
4
5
6
7
Addressing Modes for Your Remote I/O
Figure 3.18
I/OImage Table and Corresponding Hardware for One
Assigned Rack Number with 1/2Ćslot Addressing
W ord #
O utput Im age Table
6
7
4
5
2
3
0
1
I/O Group Designation
3–21
Not
Used
An I/O chassis with 1/2Ćslot addressing
I I O O Input/Output Designation
W ord #
4
5
2
3
0
1
6
7
Input Im age Table
Always
0
14974
Publication 1771-UM001A-US-P - February 2000
3–22
Addressing Modes for Your Remote I/O
Complementary I/Owith
1/2ĆSlot Addressing
Some processors support a complementary I/O configuration. Refer to the user’s manual for your processor to see if it supports this type of configuration.
You configure complementary I/O by duplicating an I/O rack number of one I/O chassis (primary) in another I/O chassis
(complementary), I/O group for I/O group. The I/O modules in the complementary chassis perform the opposite function of the corresponding modules in the primary chassis.
P rim a ry 1 2 -s lo t
C h a s s is
I/O G ro u p
N u m b e r
C o m p le m e n ta ry
1 2 -s lo t C h a s s is
Module Placement with 1/2Ćslot Addressing
Figure 3.19 shows possible module placement for a complementary
I/O configuration with 1/2-slot addressing.
Figure 3.19
Complementary I/OConfiguration with 1/2Ćslot Addressing
I I O
0 1
O
2 3 4 5
O I
O
6 7
I O
I
0 1
O
O
1
4 5
BT
2 3
I O
E x a m p le A
1
6 7
P
T
E
M
Y
3
Double-slot
BT
0 1
P
T
E
M
Y
3
2 3
I, O ,
BT
2
I
O
4 5
O
I
6 7
I = Input M odule
O = O utput M odule
P rim a ry 1 2 -s lo t
C h a s s is
I/O G ro u p
N u m b e r
C o m p le m e n ta ry
1 2 -s lo t C h a s s is
I I I I I I I I I I I I
0 1
O
2 3
O
4 5
O
6 7
O
0 1
O
2 3
O
4 5
O
6 7
O
0 1
O
2 3
O
4 5 6 7
O O
BT = Block transfer M odule
E x a m p le B
1 O utput m odules use the sam e output im age table bits
2 Can be input or output m odule (8- or 16-point) single-slot block tran fer m odule
3 M ust be em pty if corresponding prim ary slot is block transfer m odule
14261
Publication 1771-UM001A-US-P - February 2000
Addressing Modes for Your Remote I/O
3–23
Follow these guidelines when you select 1/2-slot addressing:
•
Place input modules opposite output modules; place output modules opposite input modules.
•
You can use 8, 16 and 32-point I/O modules.
•
Output modules placed opposite output modules reflect the same bits in the output image table.
You can use block-transfer modules in a complementary I/O configuration with 1/2-slot addressing. Use block-transfer modules with these guidelines:
•
When using double-slot block-transfer modules in the primary chassis:
–
The left-most slot of the two corresponding I/O slots in the complementary chassis must be empty.
–
You can place any single-slot I/O module in the right slot of the two corresponding I/O slots of the complementary chassis
•
When using single-slot block-transfer modules, the corresponding I/O slot in the complementary chassis must be left empty.
Mixing 1 and 2ĆSlot
Addressing in Individual
Chassis
0 1
You can have a mix of 1-slot and 2-slot addressing in individual chassis assigned one I/O rack number (with up to eight I/O groups).
For example: you can select 2-slot addressing for a 1771-A2B I/O chassis and 1-slot addressing for a 1771-A1B chassis to make up one assigned I/O rack number (Figure 3.20).
Figure 3.20
Mixing Addressing Methods in Chassis Assigned One I/O
Rack Number
One Assigned I/O Rack Number
2 3 4-5 6-7
1771ĆA2B I/O Chassis using 2Ćslot addressing
1771ĆA1B I/O Chassis using 1Ćslot addressing
13126
Publication 1771-UM001A-US-P - February 2000
3–24
Addressing Modes for Your Remote I/O
Acceptable Chassis
Combinations
Not all chassis combinations are acceptable in making I/O rack number assignments. For example, a 1771-A4B I/O chassis cannot complete an assigned I/O rack number that starts in a 1771-A1 I/O chassis. Refer to Figure 3.B for acceptable beginning I/O group numbers when making your I/O rack number assignments.
Table 3.B
Acceptable Beginning I/OGroup Numbers
If you select:
2Ćslot addressing
1Ćslot addressing
1/2Ćslot addressing and:
4Ćslot chassis
The beginning I/Ogroup number can be:
0, 2, 4, 6
8Ćslot chassis 0, 2, 4
12Ćslot chassis 0, 2
16Ćslot chassis 0
4Ćslot chassis 0, 2, 4, 6
8Ćslot chassis 0, 2, 4, 6
12Ćslot chassis 0, 2, 4,
16Ćslot chassis 0
4Ćslot chassis 0
8Ćslot chassis 0
12Ćslot chassis 0
16Ćslot chassis 0
Publication 1771-UM001A-US-P - February 2000
I/OChassis/Adapter
Module Combinations
Summary
Addressing Modes for Your Remote I/O
3–25
Table 3.C shows the addressing methods you can achieve with the
Series B chassis and the various remote I/O adapter modules.
Table 3.C
Series B Chassis/Adapter Module Combinations
Remote I/OAdapter Module
Catalog Number
1771ĆAS
I/OPoints
Per Module
8
16
Addressing Mode
2ĆSlot 1ĆSlot 1/2ĆSlot
Yes
*
No
No
No
No
1771ĆASB
Series A
16
32
32
8
No
Yes
*
No
No
Yes
Yes
No
1771ĆASB
Series B, C, D and E
8
16
Yes
*
Yes
Yes
Yes
Yes
32 No * Yes
* Conditional module placement: you must use an input module and an output module in two adjacent slots of the I/O chassis beginning with slot 0.
IMPORTANT: Series A I/O chassis let you use 2Ćslot addressing with 8Ćpoint
I/O modules only, regardless of the type of adapter module you use. This chart is valid for series B I/O chassis. You need series B I/O chassis to achieve 1Ćslot and 1/2Ćslot addressing with 16Ćpoint and 32Ćpoint I/O modules.
No
No
No
No
In this chapter we discussed how to address your hardware and the various remote I/O configurations and options you can use in your remote system.
Publication 1771-UM001A-US-P - February 2000
3–26
Addressing Modes for Your Remote I/O
Publication 1771-UM001A-US-P - February 2000
Chapter Objectives
Troubleshooting With the
Indicator Lights
Chapter
4
Troubleshooting
In this chapter, you will learn how to use the indicators on the module frontplate for troubleshooting the module.
The module has three indicators on the front plate, as shown below.
Use these indicators for troubleshooting the module.
Green ACTIVE Indicator
ACTIVE
ADAPTER
FAULT
I/O RACK
FAULT
Red ADAPTER FAULT Indicator
Red I/O RACK FAULT Indicator
10811-I
The following table describes problems that may occur, probable causes, and recommended courses of action.
Publication 1771-UM001A-US-P - February 2000
4–2
Troubleshooting
Table 4.A
Remote I/OSystem Troubleshooting Guide
Indicators
Active Adapter I/O
Fault Rack
On Off Off
Off
On
On
Off
Blink
On
Blink
On
On
Off
Off
Off
Blink in unison Off
On
On
Off
Description
Normal indication; remote adapter is fully operational; processor is in Run mode
Adapter crash.
Module placement error
Incorrect starting I/O group number Error in starting I/O group number or I/O
Module not communicating
Module not communicating
Remote adapter not actively controlling I/O (scanner to adapter communication link is normal) scanner manual or autoconfiguration
8 was successful
Module not communicating
4
;
RAM memory fault.
Watchdog timeout
I/O module in incorrect slot.
rack address
Probable Cause
Incorrect baud rate setting
Scan switch set for "all but last 4 slots" in
1/4 rack
Processor is in program or test mode
Scanner is holding adapter module in fault mode;
Configuration mismatch
Recommended Action
Cycle power. Replace module if problem reoccurs.
Place module in correct slot in chassis.
Check dipswitch settings. Refer to table
3.B to verify acceptable beginning I/O group number; set switches correctly
Check dipswitch setting
Reset scan switch setting
Place processor in Run mode.
Fault should be cleared by I/O scanner
Correct the configuration mismatch, i.e.
incorrect rack size, rack number
Correct the address.
LEDs sequence on/off from top to bottom
Blink alternately
Off Adapter module not actively controlling I/O
2
Adapter module in processor restart lockout mode (adapter to scanner link is normal)
5
Another remote I/O adapter with the same address is on the link.
Processor restart lockout switch on chassis backplane switch assembly on
1
Off
Blink
Off
Off
On
On
I/O chassis fault.
on link.
violation.
2
No communication
Communication on link. Chassis
Problem exists between:
• adapter and module in chassis; the module will stay in fault mode until fault is corrected
• shorted printed circuit board runs on backplane or I/O module
Possible shorted backplane in chassis.
Excessive noise on backplane.
6
Depress reset button to clear lockout feature or cycle power; if after repeated attempts indicators are still blinking, check:
• pushbutton not wired properly to field wiring arm
• wiring arm not connected to adapter module
• adapter module was reset by processor/scanner, then immediately faulted
Cycle power to the chassis to clear a problem resulting from high noise
3
• remove and replace all I/O modules one at a time
• if problem does not clear, something is wrong in chassis or I/O module
Identify source of noise. Suppress output module inductive loads or noise sources in proximity to output module wiring. Target the problem by splitting the rack into smaller racks.
Check chassis, Replace chassis as necessary.
Publication 1771-UM001A-US-P - February 2000
Troubleshooting
4–3
Indicators
Active Adapter I/O
Fault Rack
Blink On Off
Description
Module identification line fault
Probable Cause Recommended Action
Off Off Off Module not communicating
7
Excessive noise on backplane
Autoconfiguration
8 unsuccessful
Scanner not configured properly
Power supply fault
Identify source of noise. Check power supply incoming ac power with a line disturbance analyzer. Monitor scanner channel for retries to determine if noise is entering the RIO cable.
Possible problem with block transfer module. Remove to isolate.
Check scanner COM indicator;
Steady green - normal;
Blinking green - at least one node on the link is faulted or failed;
Red - scanner may have a hardware problem, replace.
Blinking red - all adapters on link have faulted or duplicate node address detected
Off - scanner channel has not been configured to be active on the RIO link
(not online)
Refer to Autoconfigure below.
Check power supply, cable connections, and make sure adapter module is fully seated in chassis.
Correct cable and wiring defects Wiring from scanner to adapter module disrupted
One faulted chassis within a rack group address causing scanner/distribution panel to fault all chassis in rack group address (when in disable search mode)
Check sequentially from the first module to the last module to pinpoint fault; correct any faults and proceed to the next chassis
1. You must select the operating mode of the remote I/O adapter module as outlined in the publication furnished with the remote I/O scanner/distribution panel, remote I/O scanner-program interface module, or I/O scanner-message handling module. Pay close attention to the disable search mode in the 1771-SD, -SD2.
2. The I/O chassis is in faulted mode as selected by the last state switch on the chassis backplane.
3. Cycling power clears the block-transfer request queue. All pending block transfers are lost. Your program must repeat the request for block transfers from the chassis.
4. If a fault occurs and the processor is in the run mode but is actually operating in the dependent mode, the chassis fault response mode is selected by the last state switch on the chassis backplane.
5. The I/O chassis is in faulted mode as selected by the last state switch on the chassis backplane.
6. If excessive chassis faults occur, check switch SWĆ2, position 6 for the OFF position.
7. The adapter considers loss of communication if it sees no transmissions on the RIO network for 100ms or sees 255 transmissions on the RIO with none to the adapter.
8. Autoconfigure is a feature of the PLCĆ5 processor family.
Publication 1771-UM001A-US-P - February 2000
4–4
Troubleshooting
Summary
Autoconfigure
For a successful autoconfigure, insure that a processor I/O status file exists, all rack and reset and inhibit bits are zeroed, and the channel is set up for scanner, and the baud rate is correct.
Make sure that:
• the input and output image tables are large enough to accommodate the rack address you are attempting to assign
• the adapter and chassis switches are set correctly, especially communication rate, rack and group.
• the wiring is correct and properly terminated
• the remote I/O racks are not split across scanner channels or the local chassis
If autoconfigure is still not successful, save the program, clear processor memory by disconnecting the battery, create an I/O status file, reconfigure the scanner channel, and try again.
1747-SN Scanner
For the adapter to recognized by the 1747-SN scanner module, the
G-files must be properly constructed for rack and starting group and scanner switches must be set for the correct communication rate.
1756-DHRIO Scanner
For the adapter to be recognized by the scanner module, the adapter must be added for each logical rack under the scanner module and be properly configured in the Logix5550 Controller Organizer configuration tree, and the scanner switches must be set correctly for remote I/O and node number.
In this chapter you learned how to use the indicators on the front of the module to troubleshoot your module.
Publication 1771-UM001A-US-P - February 2000
Appendix
A
Specifications
Module Location
Chassis Distance
Interconnect Cable
Power Dissipation
Thermal Dissipation
Backplane Current
Keying
1771 I/O chassis, leftmost slot
2500 ft @ 230.4K Baud
5000 ft @ 115.2K Baud
10000 ft @ 57.6K Baud
1770-CD-
5 Watts
17.06 BTU/hr
1.0A @ 5V
Upper connector: between 54 and 56
Lower connector: between 16 and 18
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Field Wiring Arm
Field Wiring Arm Screw Torque
0 o to 60 o
C (32 o to 140 o
F)
-40 o to 85 o
C (-40 o to 185 o
F)
5% to 95% (without condensation)
Cat. No. 1771-WB
7Ć9 poundĆinches
Conductor Size
Remote I/O blue cable
User supplied I/O rack restart switch
Category
Termination Resistor
Agency Certification
(when product is marked)
20 AWG (0.5mm
2
) stranded copper with 1 wire per terminal
1
20 AWG (0.5mm
2
2
2
) with 3/64 (1.2mm) insulation maximum
82Ω - AĆB part number 740018Ć23
150Ω - AĆB cat. no. 1770ĆXT
• CSA Certified
• CSA Class I, Division 2 Groups A, B, C, D certified
• UL listed
• CE marked for all applicable directives
• C-Tick marked for all applicable acts.
1. Connect only 1 stranded wire to a terminal. Use stranded copper wire only.
2. Use this conductor category information for planning conductor routing. Refer to publication 1770-4.1, Industrial Automation
Wiring and Grounding Guidelines for Noise Immunity."
Publication 1771ĆUM001A-US-P - February 2000
A–2
Specifications
Publication 1771ĆUM001A-US-P - February 2000
General Information
Appendix
B
Settings for 1771-AS and
1771-ASB Series A, B, C and D
Remote I/O Adapters
This appendix provides information on previous remote I/O adapters supplied by Allen–Bradley. The following table lists the adapter and respective figure reference.
Figure Description
B.1
Keying Diagram for 1771-ASB series A, B and C
B.2
Keying Diagram for 1771-AS
B.3
B.4
B.5
B.6
B.7
B.8
B.9
B.10
Field Wiring Arm Connection for 1771-AS, -ASB series A, B and C
Applies to:
1771-ASB series A, B and C
1771-AS
1771-AS
1771-ASB series A, B and C
1771-AS
1771-ASB series A, B
Module Switch Assembly Settings for 1771-AS, -ASB series A and B
Adapter for PLC-2 Family Processors
Module Switch Assembly Settings for 1771-ASB series C Adapter for
PLC-2 Family Processors
Module Switch Assembly Settings for 1771-AS and 1771-ASB series
A and B Adapters for PLC-3 Family Processors
Module Switch Assembly Settings for 1771-ASB series C Adapters for
PLC-3 Family Processors
Module Switch Assembly Settings for 1771-AS and 1771-ASB series
A and B Adapters for PLC-5 Family, SLC and ControlLogix Processor
Systems Processors without Complementary I/O
Module Switch Assembly Settings for 1771-ASB series C Adapters for
PLC-5 Family, SLC and ControlLogix Processor Systems Processors without Complementary I/O
Module Switch Assembly Settings for 1771-AS, -ASB series A and B
Adapters for PLC-5 Family, SLC and ControlLogix Processor Systems
Processors with Complementary I/O
1771-ASB series C and D
1771-AS
1771-ASB series A, B
1771-ASB series C and D
1771-AS
1771-ASB series A, B
1771-ASB series C and D
1771-AS
1771-ASB series A, B
B.11
B.12
B.13
B.14
B.15
Module Switch Assembly Settings for 1771-ASB series C Adapters for
PLC-5 Family, SLC and ControlLogix Processor Systems Processors with Complementary I/O
I/O Chassis Backplane Switch Assembly Settings for 1771-AS
Remote Adapter Module in PLC-2, SLC and ControlLogix Processor
Systems Family Processor System
1771-ASB series C and D
1771-AS
I/O Chassis Backplane Switch Assembly Settings for 1771-AS
Remote Adapter Module in PLC-3 Family, SLC and ControlLogix
Processor Systems Processor System
I/O Chassis Backplane Switch Assembly Settings for Remote Adapter
Module in PLCĆ2, SLC and ControlLogix Processor Systems Family
Processor System
I/O Chassis Backplane Switch Assembly Settings for Remote Adapter
Module in PLCĆ3 Family Processor System
1771-AS
1771-ASB series C and D
1771-ASB series C and D
Publication 1771ĆUM001A-US-P - February 2000
B–2
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
Figure
B.16
B.17
B.18
Description
I/O Chassis Backplane Switch Assembly Settings for Remote Adapter
Module in PLCĆ5 Family Processor System
I/O Chassis Backplane Switch Assembly Settings for Remote Adapter
Module in PLCĆ5 Family, SLC and ControlLogix Processor Systems in
Remote Configuration
I/O Chassis Backplane Switch Assembly Settings for Remote Adapter
Module in PLCĆ5/250 Processor System
Applies to:
1771-ASB series C and D
1771-ASB series C and D
1771-ASB series C and D
Figure B.1
Keying Diagram for 1771-ASB series A, B, C and D
48
50
52
56
34
36
38
40
42
44
20
22
24
26
28
30
10
12
14
16
6
8
2
4
4
6
8
10
12
14
2
1 8
0
22
26
28
30
32
18
20
22
24
10
12
14
16
6
8
2
4
34
36
38
40
42
44
48
50
52
54
56
10
12
14
16
1
6
8
2
4
2
22
8
0
Insert keying bands between: upper connector - 54 and 56 lower connector - 16 and 18
Figure B.2
Keying Diagram for 1771-AS Remote I/OAdapter
Insert keying bands between: upper connector - 44 and 46 lower connector - 20 and 22
12252
12252
Publication 1771ĆUM001A-US-P - February 2000
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
B–3
WARNING: Do not make connections to terminals
4 through 10. These terminals are connected internally (1 to
4, 2 to 5 and 3 to 6) and cannot be used for any other purpose.
Figure B.3
Field Wiring Arm Connection Diagram for 1771-AS, -ASB series A, B, C and D
Blue
Shield
Allen-Bradley Cable (cat. no. 1770-CD)
Clear
User supplied
I/O rack restart pushbutton
7
8
9
5
6
10
11
1
2
3
4
12
1 Line 1
2 Shield Cable
3 Line 2
4 No connection
5 No connection
6 No connection
7 No connection
8 No connection
9 No connection
10 No connection
11 In
Reset
12 Ret
17343
Publication 1771ĆUM001A-US-P - February 2000
B–4
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
Figure B.4
Module Switch Assembly Settings for 1771-AS, -ASB series
A and B Adapter for PLC-2 Family Processors
Address Switch Assembly
(SW-1)
O
F
F
O
N
1 2 3 4 5 6 7 8
First I/O group number
(Table B.A)
I/O rack number
(Table B.A)
SD - always ON
SD2 - without complementary I/O
- always ON
SD2 - with complementary I/O -
ON - Primary chassis
OFF - Complementary chassis
Always ON
Maximum I/O Rack Distance
ON - 10,000 cable ft. max. (57.6K baud)
OFF - 5,000 cable ft. max. (115.2K baud)
Switch Assembly
(SW-2)
O
F
F
O
N
1 2 3 4
Pressed in at top
Closed (ON)
Pressed in at bottom
Open (OFF)
Always OFF
SD - always OFF
SD2 - without complementary I/O - always OFF
SD2 - with complementary I/O -
ON - Primary chassis
OFF - Complementary chassis
10819-I
I/ORack
Number
3
4
5
6
1
2
7
Table B.A
I/ORack Selection for PLC-2 Family Processors
Switch Selections
4 5
On
On
On
On
Off
Off
Off
On
On
Off
Off
On
On
Off
6
On
Off
On
Off
On
Off
On
First I/OGroup
Number
4
6
0
2
Switch Selections
On
On
Off
Off
7 8
On
Off
On
Off
Publication 1771ĆUM001A-US-P - February 2000
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
Figure B.5
Module Switch Assembly Settings for 1771-ASB series C and D Adapters for PLCĆ2 Family Processors
B–5
Address Switch Assembly
(S1)
O
F
F
O
N
1 2 3 4 5 6 7 8
SD Ć always ON
SD2 Ć without complementary I/O
Ć always ON
SD2 Ć with complementary I/O Ć
ON Ć Primary chassis
OFF Ć Complementary chassis
Always ON
First I/Ogroup number
(Table B.B)
I/Orack number
(Table B.B)
Switch Position
1 2
ON OFF
OFF OFF
ON
OFF
ON
ON
Maximum I/O chassis distance
57.6K Baud Ć 10,000ft
115.2K Baud Ć 5,000ft
Not Used
Not Used
Switch Assembly
(S2)
5 6
O
N
O
F
F
1 2 3 4
Pressed in at top
Closed (ON)
Pressed in at bottom
Open (OFF)
Off
Link Response Ć ON for series B emulation
OFF for unrestricted
ATTENTION: Link response switch must be ON when using the following scanner modules:
1772ĆSD2
Scan Ć on for all but last 4 slots off for all slots
SD Ć always OFF
SD2 Ć without complementary I/O Ć always OFF
SD2 Ć with complementary I/O Ć
ON Ć Primary chassis
OFF Ć Complementary chassis
10798ĆI
I/ORack
Number
1
4
5
6
2
3
7
Table B.B
I/ORack Number and First I/OGroup Switch Selections for the Address Switch Assembly S1 (PLCĆ2 Family
Processors)
Switch Selections
4 5 6
On
On
On
On
Off
Off
Off
On
On
Off
Off
On
On
Off
On
Off
On
Off
On
Off
On
First I/OGroup
Number
0
2
4
6
Switch Selections
7 8
On
On
Off
Off
On
Off
On
Off
Publication 1771ĆUM001A-US-P - February 2000
B–6
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
Figure B.6
Module Switch Assembly Settings for 1771-AS and
1771-ASB series A and B Adapters for PLC-3 Family
Processors
I/ORack
Number
13
14
15
16
17
06
07
10
11
12
00
01
02
03
04
05
Address Switch Assembly
(SW-1)
O
F
F
O
N
1 2 3 4 5 6 7 8
Switch Assembly
(SW-2)
O
N
O
F
F
1 2 3 4
First I/O group number
(Table B.C)
I/O rack number
(Table B.C)
Maximum I/O Rack Distance
ON - 10,000 cable ft. max. (57.6K baud)
OFF - 5,000 cable ft. max. (115.2K baud)
1
Switch Setting
2 3 4 5 6
On On On On On On
On On On On On Off
On On On On Off On
On On On On Off Off
On On On Off On On
On On On Off On Off
On On On Off Off On
On On On Off Off Off
On On Off On On On
On On Off On On Off
On On Off On Off On
On On Off On Off Off
On On Off Off On On
On On Off Off On Off
On On Off Off Off On
On On Off Off Off Off
Table B.C
I/ORack Selection for PLC-3 Family Processors
I/ORack
Number
33
34
35
36
37
26
27
30
31
32
20
21
22
23
24
25
1
Switch Setting
2 3 4 5 6
On Off On On On On
On Off On On On Off
On Off On On Off On
On Off On On Off Off
On Off On Off On On
On Off On Off On Off
On Off On Off Off On
On Off On Off Off Off
On Off Off On On On
On Off Off On On Off
On Off Off On Off On
On Off Off On Off Off
On Off Off Off On On
On Off Off Off On Off
On Off Off Off Off On
On Off Off Off Off Off
Pressed in at top
Closed (ON)
Pressed in at bottom
Open (OFF)
Always OFF
10820-I
1st I/O
Group
Number
0
2
4
6
Switch
Selections
7
On
On
Off
Off
8
On
Off
On
Off
Publication 1771ĆUM001A-US-P - February 2000
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
B–7
Figure B.7
Module Switch Assembly Settings for 1771-ASB series C and D Adapters for PLCĆ3 Family Processors
Address Switch Assembly
(S1)
O
F
F
O
N
1 2 3 4 5 6 7 8
I/Orack number
(Table B.D)
First I/Ogroup number
(Table B.D)
Switch Position
1 2
Maximum I/O chassis distance
ON
OFF
OFF OFF
OFF
ON
57.6K Baud Ć 10,000ft
115.2K Baud Ć 5,000ft
ON 230.4K Baud Ć 2,500ft
ON Not Used
1
O
N
O
F
F
Switch Assembly (S2)
1 2 3 4
5 6
1 230.4K Baud with 1775ĆS5 revision A/G, and
1775ĆSR5 revision A/G scanners only.
Always OFF
Scan Ć On for all but last 4 slots
Off for all slots
Pressed in at top
Closed (ON)
Pressed in at bottom
Open (OFF)
Off
Link Response Ć ON for series B emulation
OFF for unrestricted
ATTENTION: Link response switch must be ON when using the following scanner modĆ ules:
1775ĆS4A
1775ĆS4B
1775ĆS5
1775ĆSR5
1775ĆSR
10799ĆI
Table B.D
I/ORack Switch Selections for the Address Switch
Assembly (PLCĆ3 Family Processors)
Rack
# 1 2
Switch Setting
3 4 5 6
Rack
# 1 2
Switch Setting
3 4 5 6
Rack
# 1 2
Switch Setting
3 4 5 6
Rack
# 1 2
Switch Setting
3 4 5 6
00 On On On On On On 20 On Off On On On On 40 Off On On On On On 60 Off Off On On On On
01 On On On On On Off 21 On Off On On On Off 41 Off On On On On Off 61 Off Off On On On Off
02 On On On On Off On 22 On Off On On Off On 42 Off On On On Off On 62 Off Off On On Off On
03 On On On On Off Off 23 On Off On On Off Off 43 Off On On On Off Off
04 On On On Off On On 24 On Off On Off On On 44 Of On On Off On On
63 Off Off On On Off Off
64 Off Off On Off On On
05 On On On Off On Off 25 On Off On Off On Off 45 Off On On Off On Off 65 Off Off On Off On Off
06 On On On Off Off On 26 On Off On Off Off On 46 Off On On Off Off On 66 Off Off On Off Off On
07 On On On Off Off Off 27 On Off On Off Off Off 47 Off On On Off Off Off 67 Off Off On Off Off Off
10 On On Off On On On 30 On Off Off On On On 50 Off On Off On On On 70 Off Off Off On On On
11 On On Off On On Off 31 On Off Off On On Off 51 Off On Off On On Off 71 Off Off Off On On Off
12 On On Off On Off On 32 On Off Off On Off On 52 Off On Off On Off On 72 Off Off Off On Off On
13 On On Off On Off Off 33 On Off Off On Off Off 53 Off On Off On Off Off 73 Off Off Off On Off Off
14 On On Off Off On On 34 On Off Off Off On On 54 Off On Off Off On On 74 Off Off Off Off On On
15 On On Off Off On Off 35 On Off Off Off On Off 55 Off On Off Off On Off 75 Off Off Off Off On Off
16 On On Off Off Off On 36 On Off Off Off Off On 56 Off On Off Off Off On 76 Off Off Off Off Off On
17 On On Off Off Off Off 37 On Off Off Off Off Off 57 Off On Off Off Off Off 77 Not valid
1st I/OGroup
Number
0
2
4
6
Switch Selections
7 8
On
On
On
Off
Off
Off
On
Off
Note: Rack address 77 is an illegal configuration.
PLCĆ3 processors can scan racks 0Ć76.
Publication 1771ĆUM001A-US-P - February 2000
B–8
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
Figure B.8
Module Switch Assembly Settings for 1771-AS and
1771-ASB series A and B Adapters for PLC-5 Family
Processors without Complementary I/O
Address Switch Assembly
(SW-1)
O
F
F
O
N
1 2 3 4 5 6 7 8
First I/O group number
(Table B.E)
I/O rack number
(Table B.E)
Maximum I/O Rack Distance
ON - 10,000 cable ft. max. (57.6K baud)
OFF - 5,000 cable ft. max. (115.2K baud)
Switch Assembly
(SW-2)
O
N
O
F
F
1 2 3 4
Table B.E
I/ORack Selection for PLC-5 Family without
Complementary I/O
I/ORack
Number 1 2
Switch Selections
3 4
1
2
On
On
On
On
On
On
3
4
1
5
1
6
1
On
On
On
On
On
On
On
On
On
7
1
On On
1
Valid for PLC-5/25 processors only
On
On
On
On
Off
On
On
On
Off
Off
Off
5
On
Off
Off
On
On
Off
Off
6
Off
On
Off
On
Off
On
Off
First I/OGroup
Number
0
2
4
6
Pressed in at top
Closed (ON)
Pressed in at bottom
Open (OFF)
Always OFF
Switch Selections
On
On
Off
Off
7 8
On
Off
On
Off
10821-I
Publication 1771ĆUM001A-US-P - February 2000
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
B–9
Figure B.9
Module Switch Assembly Settings for 1771-ASB series C and D Adapters for PLCĆ5 Family Processors Without
Complementary I/O
O
F
F
O
N
Address Switch Assembly
(S1)
1 2 3 4 5 6 7 8
I/Orack number
(Table B.F)
First I/Ogroup number
(Table B.F)
Switch Position
1 2
Maximum I/O chassis distance(see note)
ON OFF 57.6K Baud Ć 10,000ft
OFF OFF 115.2K Baud Ć 5,000ft
OFF ON 230.4K Baud Ć 2,500ft
ON ON Not Used
Note: PLCĆ5/15 and 5/25 processors operate at 57.6K baud only.
O
N
O
F
F
Switch Assembly
(S2)
1 2 3 4 5 6
Off
Pressed in at top
Closed (ON)
Pressed in at bottom
Open (OFF)
Link Response Ć on for series B emulation off for unrestricted
Scan Ć on for all but last 4 slots
Always OFF
Table B.F
I/ORack Selection for PLCĆ5 Family Processors without Complementary I/O
Rack
# 1 2
Switch Setting
3 4 5 6
Rack
# 1 2
Switch Setting
3 4 5 6
00 On On On On On On 20 On Off On On On On
01 On On On On On Off 21 On Off On On On Off
02 On On On On Off On 22 On Off On On Off On
03 On On On On Off Off 23 On Off On On Off Off
04 On On On Off On On 24 On Off On Off On On
05 On On On Off On Off 25 On Off On Off On Off
06 On On On Off Off On 26 On Off On Off Off On
07 On On On Off Off Off 27 On Off On Off Off Off
10 On On Off On On On 30 On Off Off On On On
11 On On Off On On Off 31 On Off Off On On Off
12 On On Off On Off On 32 On Off Off On Off On
13 On On Off On Off Off 33 On Off Off On Off Off
14 On On Off Off On On 34 On Off Off Off On On
15 On On Off Off On Off 35 On Off Off Off On Off
16 On On Off Off Off On 36 On Off Off Off Off On
17 On On Off Off Off Off 37 On Off Off Off Off Off
PLCĆ5/11 processors can scan rack 03.
PLCĆ5/15 and PLCĆ5/20 processors can scan racks 01Ć03.
PLCĆ5/25 and PLCĆ5/30 processors can scan racks 01Ć07.
PLCĆ5/40 and PLCĆ5/40L processors can scan racks 01Ć17.
PLCĆ5/60 and PLCĆ5/60L processors can scan racks 01Ć27.
PLCĆ5/250 processors can scan racks 0Ć37.
off for all slots
1st I/O
Group
Number
0
2
4
6
10800ĆI
7
Switch
Selections
8
On
On
On
Off
Off
Off
On
Off
Publication 1771ĆUM001A-US-P - February 2000
B–10
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
Figure B.10
Module Switch Assembly Settings for 1771-AS, -ASB series
A and B Adapters for PLC-5 Family Processors with
Complementary I/O
Address Switch Assembly
(SW-1)
O
F
F
O
N
1 2 3 4 5 6 7 8
Switch Assembly
(SW-2)
First I/O group number
(Table B.G)
I/O rack number
(Table B.G)
ON - Primary chassis
OFF - Complementary chassis
Maximum I/O Rack Distance
ON - 10,000 cable ft. max. (57.6K baud)
OFF - 5,000 cable ft. max. (115.2K baud)
Always ON
O
N
O
F
F
1 2 3 4
Always OFF
Pressed in at top
Closed (ON)
Pressed in at bottom
Open (OFF)
ON - Primary chassis
OFF - Complementary chassis
10822-I
I/ORack
Number
1
Table B.G
I/ORack Selection for PLC-5 Family with Complementary I/O
Switch Selections
4
On On
5 6
Off
2
3
4
1
5
1
6
1
On
On
Off
Off
Off
Off
Off
On
On
Off
On
Off
7
1
Off Off
1
Valid for PLC-5/25 processors only
Off
On
Off
On
First I/OGroup
Number
0
2
4
6
Switch Selections
7 8
On On
On
Off
Off
Off
On
Off
Publication 1771ĆUM001A-US-P - February 2000
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
Figure B.11
Module Switch Assembly Settings for 1771-ASB series C and D Adapters for PLCĆ5 Family Processors With
Complementary I/O
B–11
Address Switch Assembly
(S1)
O
N
O
F
F
1 2 3 4 5 6 7 8
First I/Ogroup number
(Table B.H)
I/Orack number
(Table B.H)
ON Ć Primary chassis
OFF Ć Complementary chassis
Always ON
Switch Position
1 2
Maximum I/O chassis distance(see note)
ON OFF 57.6K Baud Ć 10,000ft
OFF OFF 115.2K Baud Ć 5,000ft
OFF ON 230.4K Baud Ć 2,500ft
ON ON Not Used
Note: PLCĆ5/15 and 5/25 processors operate at 57.6K baud only.
Switch Assembly
(S2)
O
F
F
O
N
1 2 3 4
5 6
Off
Pressed in at top
Closed (ON)
Pressed in at bottom
Open (OFF)
Link Response Ć on for series B emulation off for unrestricted
Scan Ć on for all but last 4 slots off for all slots
ON Ć Primary chassis
OFF Ć Complementary chassis
10801ĆI
Table B.H
I/ORack Selection for PLCĆ5 Family Processors with
Complementary I/O
I/O
Rack #
01
02
03
1 2
Switch
3 4 5 6
On On On On On Off
On On On On Off On
On On On On Off Off
04
05
On On On Off On On
On On On Off On Off
06
07
On On On Off Off On
On On On Off Off Off
See note below
Note: PLCĆ5/11 can scan rack 03.
PLCĆ5/20, PLCĆ5/30, PLCĆ5/40, PLCĆ5/60 can scan racks 01Ć07.
1st I/OGroup
Number
0
2
4
6
Switch Selections
7 8
On
On
Off
Off
On
Off
On
Off
Publication 1771ĆUM001A-US-P - February 2000
B–12
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
Last State Switch -
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Figure B.12
I/OChassis Backplane Switch Assembly Settings for
1771-AS Remote Adapter Module in PLC-2 Family
Processor System
Always OFF
O
N
O
F
F
1 2 3 4 5 6 7 8
Caution: Set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected. If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection.
Processor Restart Lockout -
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switch -
ON - 1-slot addressing selected
OFF - 2-slot addressing selected
Last Chassis Switch -
ON - Chassis does not contain the highest numĆ bered I/O group for the associated rack number
OFF - Chassis does contain the highest numbered
I/O group for the associated rack number
If you have only a primary chassis, set this switch to OFF.
If you have both primary and complementary chassis, set the primary chassis to ON and the complementary chassis to OFF.
10823-I
Last State Switch -
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Figure B.13
I/OChassis Backplane Switch Assembly Settings for
1771-AS Remote Adapter Module in PLC-3 Family
Processor System
Always OFF
O
N
O
F
F
1 2 3 4 5 6 7 8
Caution: Set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected. If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection.
Processor Restart Lockout -
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
1771-A1/A1B chassis in PLC-3 Backup
ON - If any 1771-A1/A1B chassis conĆ tains starting I/O group 0 with 2-slot addressing and the PLC-3 is configured in backup mode.
OFF - All other times.
10824-I
Publication 1771ĆUM001A-US-P - February 2000
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
B–13
Figure B.14
I/OChassis Backplane Switch Assembly Settings for for
1771-ASB series C and D Remote Adapter Module in PLCĆ2
Family Processor System
Last State Switch Ć
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Always OFF
Always OFF
ATTENTION: Set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected. If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection.
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switch Ć
ON Ć 1Ćslot addressing selected
OFF Ć 2Ćslot addressing selected
Last Chassis Switch Ć
ON Ć Chassis does not contain the highest numbered I/O group for the associated rack number
OFF Ć Chassis does contain the highest numbered I/O group for the associated rack number
If you have only a primary chassis, set this switch to OFF.
If you have both primary and complementary chassis, set the primary chassis to ON and the complementary chassis to OFF.
1080
Figure B.15
I/OChassis Backplane Switch Assembly Settings for
1771-ASB series C and D Remote Adapter Module in PLCĆ3
Family Processor System
ATTENTION: Set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected. If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection.
Always OFF
Last State Switch Ć
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
1771ĆA1/A1B chassis in PLCĆ3 Backup
ON Ć If any 1771ĆA1/A1B chassis contains starting I/O group 0 with 2Ćslot addressing and the PLCĆ3 is configured in backup mode.
OFF Ć All other times.
Addressing Switches
5 6
OFF
ON
OFF
ON
ON
OFF
OFF
ON
You select 1/2Ćslot addressing
You select 1Ćslot addressing
You select 2Ćslot addressing
Not allowed
10802ĆI
Publication 1771ĆUM001A-US-P - February 2000
B–14
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
ATTENTION: Set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected. If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection.
Always OFF
Figure B.16
I/OChassis Backplane Switch Assembly Settings for
1771-ASB series C and D Remote Adapter Module in PLCĆ5
Family, SLC and ControlLogix Processor System
Last State Switch Ć
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switches
5 6
OFF
ON
OFF
ON
ON
OFF
OFF
ON
You select 1/2Ćslot addressing
You select 1Ćslot addressing
You select 2Ćslot addressing
Not allowed
Last Chassis Switch Ć
ON Ć Chassis does not contain the highest numĆ bered I/O group for the associated rack number
OFF Ć Chassis does contain the highest numbered
I/O group for the associated rack number
If you have only a primary chassis, set this switch to OFF.
If you have both primary and complementary chassis, set the primary chassis to ON and the complementary chassis to OFF.
10802ĆI
Figure B.17
I/OChassis Backplane Switch Assembly Settings for
1771-ASB series C and D Remote Adapter Module in PLCĆ5
Family, SLC and ControlLogix Processor Systems in
Remote Configuration
ATTENTION: If switch 1 is set to the ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection. We recommend that you set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected.
Always OFF
Always OFF
Last State Switch Ć
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switches
5 6
OFF
ON
OFF
ON
ON
OFF
OFF
ON
You select 1/2Ćslot addressing
You select 1Ćslot addressing
You select 2Ćslot addressing
Not allowed
10802ĆI
Publication 1771ĆUM001A-US-P - February 2000
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
Figure B.18
I/OChassis Backplane Switch Assembly Settings for
1771-ASB series C and D Remote Adapter Module in
PLCĆ5/250 Processor System
ATTENTION: Set switch 1 to the OFF position to deenergize outputs wired to this chassis when a fault is detected. If switch 1 is set to the
ON position, outputs connected to this chassis remain in their last state when a fault occurs and machine motion may continue after fault detection.
Always OFF
Always OFF
Last State Switch Ć
B–15
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized when a fault is detected.
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switches
5 6
OFF
ON
OFF
ON
ON
OFF
OFF
ON
You select 1/2Ćslot addressing
You select 1Ćslot addressing
You select 2Ćslot addressing
Not allowed
10802ĆI
Publication 1771ĆUM001A-US-P - February 2000
B–16
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
Publication 1771ĆUM001A-US-P - February 2000
Appendix
Differences Between 1771ĆASB
Series A, B, C, D and E Remote
I/O Adapter Modules
C
1771-ASB
Functional
Changes
Restrictions or limitations
Hardware
Compatibility
Communication
Rate
Certifications
Backplane Current
Chassis Distance
Thermal
Dissipation
Power Dissipation
Series A
Initial release
Major differences between series are noted in the table below.
Table C.A
Major Differences Between 1771-ASB Series Adapters
Series B Series C Series D
Firmware change
Hardware and firmware change
Firmware change
Added CE certification
Series E
Hardware change
Added C-Tick certification
Supports only 1 or 2 slot addressing
Does not support 32 bit digital I/O
57.6kbits/s
115.2kbits/s
Does support 32 bit digital I/O
CSA Hazardous Class I, Div 2
1.2A @ 5V dc
5,000ft @ 115.2kbits/s
10,000ft @ 57.6kbits/s
Supports 1/2, 1 or 2 slot addressing
Does support 32 bit digital I/O
Can emulate series B adapter
57.6kbits/s
115.2kbits/s
230.4kbits/s
CSA Hazardous Class I, Div 2
CE
1.0A @ 5V dc
5,000ft @ 115.2kbits/s
10,000ft @ 57.6kbits/s
2,500ft @ 230.4kbits/s
20.47 BTU/hr
6W
17.06 BTU/hr
5W
Publication 1771ĆUM001A-US-P - February 2000
C–2
Differences Between 1771-ASB Series A, B, C, D and E Remote I/O Adapter Modules
Publication 1771ĆUM001A-US-P - February 2000
Questions and Answers
Appendix
Questions and Answers
D
This appendix presents some of the most commonly asked questions about application and operation of the Remote I/O Adapter Module.
The following questions and answers do not cover all possible questions, but are representative of the more common ones.
Q. What happens to my inputs and outputs when an adapter communication failure occurs?
A. On a communication failure, inputs in this rack will appear in the processor input image table in the last state they were reported to be in before the failure. Outputs in this rack will either remain in their last state or be turned off, depending on the I/O chassis backplane switch setting for output last state.
Q. Is there a way to monitor my remote rack status and take appropriate action if there is a rack fault or a communication failure?
A. Yes. Processor rack fault bits can be monitored.
Communication failure can be detected by monitoring the program’s block transfer error bit. A diagnostic step array and timer can be programmed to monitor the status of changing digital inputs. In all cases, the appropriate action can be taken, i.e. program a fault routine.
Q. I just replaced my series B adapter with a series E adapter, and now my block transfers are timing out (block transfer error code –9). What’s wrong?
A. Certain scanner modules require series B emulation which includes a delay to provide the scanner sufficient time to service all of its communication ports. If you are using a
1772-SD2, 1775-S4, 1775-S4A, 1775-S5, 1775-SR5 or
1775-SR scanner, set the link response for unrestricted or series B emulation (switch S2, position 5 on).
Publication 1771ĆUM001A-US-P - February 2000
D–2
Questions and Answers
Q. I just added a rack to my remote I/O network and my PLC-5 scanner channel autoconfiguration does not recognize it.
Why not?
A. This is typically the result of installation and configuration problems. Anything from adapter power, wiring and connections, terminations, improper setting of adapter and chassis module switches. Use the scanner and adapter status indicators as a troubleshooting tool. Easy checks include 1.) installing a known to be good adapter into this chassis, or 2.) start from scratch by saving the program, clearing the processor memory by removing the battery, creating an I/O status file, configuring the scanner channel and autoconfigure. Sometimes just creating a new I/O status file works. You could also check this adapter alone with the scanner without a program in the processor, and without a module in the chassis. Also, insure that the processor and its
I/O image table suppport the rack address you are adding and that the rack inhibit bit is not set. Expand the image table and remove the rack inhibit as necessary.
Q. I am adding a new remote rack to my RIO network. Do I have to shut my process down to install it?
A. Yes, the processor must be in Program mode to either manually add or autoconfigure remote I/O devices on the network.
Q. I just added a rack to my RIO network and my block transfer data throughput has slowed down considerably. Why?
A. Block transfer throughput is determined by a number of things, including how many adapters are on the network, how many block transfer modules are in each chassis, communication rate and number of block transfer words being transferred. Refer to your processor user manual to determine the worst case throughput and recommendations on how to optimize throughput.
Q. I am adding a new remote rack to my RIO network. Since this rack is in close proximity to one of my adapters in the middle of my link, can I wire it directly to that adapter?
A. No, you can’t. Star connections are not allowed on remote
I/O. Daisy-chain or trunkline-dropline configurations are the only ones permitted.
Publication 1771ĆUM001A-US-P - February 2000
Questions and Answers
D–3
Q. My remote I/O is working fine without termination resistors.
Are they really required?
A. Yes, termination resistors are required. Any change in the
RIO network installation (i.e. cable length, baud rate) can cause a remote I/O communication failure without proper termination. Installing termination resistors reduces the chance of this occurring.
Q. I have an existing PLC remote I/O system that I’m replacing with 1771. Are the new adapters compatible with the older processors?
A. Any remote I/O adapter is compatible with any processor.
Any and all series/revisions of remote I/O adapter devices can be mixed on the blue hose. Make sure you set the adapter switches correctly, since switch positions may have changed on later adapters. Also, older racks and adapters only support
2 slot addressing and 8 pt. modules, while newer racks and adapters and racks have no such restrictions.
Q. I’m replacing an existing PLC-2 remote I/O system with new PLC-5 processors. Will the new processors work with the older 1771-ASB adapters?
A. Again, any processor will work with any series/revision remote I/O adapter. Watch your switch settings. Old power supplies can be used to power your adapters, but cannot be used to power the rack containing a PLC-5 processor. PLC-5 processors must be powered by slot power supplies or by a
1771-P7 supply.
Q. Specifications for my processor state that it can support 24 logical racks, but it won’t accept any rack addresses over rack 17 (16 physical racks).
A. This is a processor limitation. Each RIO channel is limited to
16 logical racks which can be scanned by the channel. The additional racks can be scanned on another RIO channel, if practical.
Q. How do I add a 1771-ASB adapter module to my
ControlLogix remote I/O network?
A. Simply add the adapter under the 1756-DHRIO scanner in the Logix5550 Controller Organizer I/O configuration tree.
With the scanner, adapter and chassis switches set correctly, download the program to the Logix5550 processor and switch to Run mode. Communication to the adapter will commence.
Publication 1771ĆUM001A-US-P - February 2000
D–4
Questions and Answers
Q. How do I add a 1771-ASB adapter module to my SLC
1747-SN scanner remote I/O network?
A. Enter the correct rack number, rack size and starting group in the SLC500 program I/O configuration G-file data screen.
With the correct communication rate set on the scanner, download the program to the SLC processor and switch to
Run mode. Communication to the adapter will commence.
Q. Ever since I installed fiber optics on my remote I/O network, the adapters won’t communicate.
A. This is probably an installation issue. Check your installation for the correct application, connection and termination of fiber optic cable, and the correct setup of the fiber optic module (1771-AF, -AF1). Make sure that no length of blue hose on this network is less than 10ft long, including the blue hose connections from the processor, scanner or adapter to the fiber optic module in the same chassis.
Q. I have a 12-slot chassis but only the modules in the first 8 slots are recognized by my program.
A. Check the scan switch (switch S2, position 4) for correct setting. It probably is set ON “scan all but the last 4 slots.”
Set it to OFF.
Q. I just installed a 1771-IL series B analog input module in my remote I/O chassis which already has a 1771-ASB series A adapter. Now my block transfers to this module are erroring.
A. Adapter modules prior to series C, firmware revision D, are not compatible with the following modules:
1771-CFM, -CFMK Series A
1771-DB Series B
1771-DMC Series A
1771-DMC1 Series A
1771-DMC4 Series A
1771-DXS2 Series A
1771-DXS4 Series A
1771-HS1, -HS3A, -HS3CR
1771-IFE Series C
1771-IFM Series A and B
1771-IL, -ILK Series B
1771-IR, -IRK Series B
1771-IXE, -IXEK Series B
1771-IXHR Series B
1771-NXXX Series A
1771-OEM1 Series A
1771-QB Series B
Publication 1771ĆUM001A-US-P - February 2000
Questions and Answers
1771-QD Series A and B
1771-QDC Series A
1771-QH Series A
1771-TCM Series A
1771-VHSC, VHSCK Series A
1771-WS Series A
D–5
Publication 1771ĆUM001A-US-P - February 2000
D–6
Questions and Answers
Publication 1771ĆUM001A-US-P - February 2000
Appendix
CSA Hazardous Location
Approval
E
CSA Hazardous Location Approval
CSA
® certifies products for general use as well as for use in hazardous locations.
Actual CSA certification is indicated by the product label as shown below, and not by statements in any user documentation.
Example of the CSA certification product label
I
Approbation d'utilisation dans des emplacements dangereux par la CSA
La CSA
® certifie les produits d'utilisation générale aussi bien que ceux qui s'utilisent dans des emplacements dangereux. La certification CSA en vigueur est indiquée par l'étiquette du produit et non par des affirmations dans la documentation à l'usage des utilisateurs.
Exemple d'étiquette de certification d'un produit par la CSA
I
To comply with CSA certification for use in hazardous locations, the following information becomes a part of the product literature for CSAĆcertified AllenĆBradley industrial control products.
• This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D, or nonĆhazardous locations only.
• The products having the appropriate CSA markings (that is, Class I Division 2,
Groups A, B, C, D), are certified for use in other equipment where the suitability of combination (that is, application or use) is determined by the CSA or the local inspection office having jurisdiction.
Important: Due to the modular nature of a PLC
® control system, the product with the highest temperature rating determines the overall temperature code rating of a
PLC control system in a Class I, Division 2 location. The temperature code rating is marked on the product label as shown.
Pour satisfaire à la certification de la CSA dans des endroits dangereux, les informations suivantes font partie intégrante de la documentation des produits industriels de contrôle AllenĆBradley certifiés par la CSA.
• Cet équipement convient à l'utilisation dans des emplacements de Classe 1,
Division 2, Groupes A, B, C, D, ou ne convient qu'à l'utilisation dans des endroits non dangereux.
• Les produits portant le marquage approprié de la CSA (c'est à dire, Classe 1,
Division 2, Groupes A, B, C, D) sont certifiés à l'utilisation pour d'autres
équipements où la convenance de combinaison (application ou utilisation) est déterminée par la CSA ou le bureau local d'inspection qualifié.
Important: Par suite de la nature modulaire du système de contrôle PLC
®
, le produit ayant le taux le plus élevé de température détermine le taux d'ensemble du code de température du système de contrôle d'un PLC dans un emplacement de Classe 1, Division 2. Le taux du code de température est indiqué sur l'étiquette du produit.
Taux du code de température
I
Temperature code rating
I
Look for temperature code rating here
The following warnings apply to products having CSA certification for use in hazardous locations.
!
WARNING: Explosion hazard Ċ
• Substitution of components may impair suitability for Class I,
Division 2.
• Do not replace components unless power has been switched off or the area is known to be nonĆhazardous.
• Do not disconnect equipment unless power has been switched off or the area is known to be nonĆhazardous.
• Do not disconnect connectors unless power has been switched off or the area is known to be nonĆhazardous. Secure any userĆsupplied connectors that mate to external circuits on an
AllenĆBradley product using screws, sliding latches, threaded connectors, or other means such that any connection can withstand a 15 Newton (3.4 lb.) separating force applied for a minimum of one minute.
CSA logo is a registered trademark of the Canadian Standards Association
PLC is a registered trademark of AllenĆBradley Company, Inc.
Le taux du code de température est indiqué ici
Les avertissements suivants s'appliquent aux produits ayant la certification CSA pour leur utilisation dans des emplacements dangereux.
!
AVERTISSEMENT: Risque d'explosion Ċ
• La substitution de composants peut rendre ce matériel inacceptable pour lesemplacements de Classe I, Division 2.
• Couper le courant ou s'assurer quel'emplacement est désigné non dangereux avant de remplacer lescomposants.
• Avant de débrancher l'équipement, couper le courant ou s'assurer que l'emplacement est désigné non dangereux.
• Avant de débrancher les connecteurs, couper le courant ou s'assurer que l'emplacement est reconnu non dangereux.
Attacher tous connecteurs fournis par l'utilisateur et reliés aux circuits externes d'un appareil AllenĆBradley à l 'aide de vis, loquets coulissants, connecteurs filetés ou autres moyens permettant aux connexions de résister à une force de séparation de 15 newtons (3,4 lb. Ć 1,5 kg) appliquée pendant au moins une minute.
Le sigle CSA est la marque déposée de l'Association des Standards pour le Canada.
PLC est une marque déposée de AllenĆBradley Company, Inc.
Publication 1771ĆUM001A-US-P - February 2000
E–2
CSA Hazardous Location Approval
Publication 1771ĆUM001A-US-P - February 2000
Index
A addressing
1-slot, 3-13 with 32-point modules, 3-14
1/2-slot, 3-19
2-slot, 3-3 complementary I/O, 3-9 using 16-point modules, 3-5 with 8-point modules, 3-4
I/O groups, 3-2 mixing 1 and 2-slot, 3-23 addressing hardware, 3-1 assigning I/O rack numbers, with 1/2-slot addressing, 3-20 autoconfigure, 4-4
1747ĆSN, 4-4
1756ĆDHRIO, 4-4
F features of module, 1-1 field wiring arm, 1-3 connection points, 2-12 connections, 2-12
I
I/O groups identifying, 3-7 identifying with 1-slot addressing, 3-15
I/O rack number, select using this switch,
2-3
I/O rack number assignment, with 1-slot addressing, 3-17 indicators, 4-1 installing the module, 2-15
B backplane switch assembly description, 2-9 settings for PLC-3 processor, 2-9, 2-10,
B-1, B-12, B-13 settings for PLC-5/15 in remote configuration, 2-11, B-2, B-14 settings for PLC-5/15 processor, 2-10,
B-2, B-14 settings for PLC-5/250 processor, 2-11,
B-2, B-15 settings with PLC-2 processor, B-1,
B-12
K keying, 2-1
L link response, unrestricted or series B emulation, 2-4
C chassis combinations, acceptable, 3-24 combinations, I/O chassis and adapter,
3-25 complementary I/O, with 1/2-slot addressing, 3-22 components, hardware, 1-2 configuration plug, I/O chassis power supply, 2-12 configuration plugs, 2-2 connections, additional adapters, 2-13
D diagnostic indicators, 1-2
M module placement
1-slot addressing, 3-16
2-slot addressing, 3-11
N noise immunity, enabling, 2-4 non-compatible products, 2-14
P power requirements, 2-1 primary/complementary, switch, 2-3
Q questions and answers, D-1 questions/answers, frequently asked, D-1
Publication 1771ĆUM001A-US-P - February 2000
I–2
Index
S scan all slots/last 4 slots, 2-3 scanner modules, requiring delay, 2-4 series B emulation, 1-1 series differences, adapters, C-1 specifications, A-1 switch assemblies, 1-3 setting, 2-2 switch assembly S1, 2-3 use to select, 2-3 switch assembly S2, 2-3 use to select, 2-3 switch locations, 1-3 switch settings
PLC-2, 2-5
PLC-2 with ĆAS, ĆASB Series A and B adapter, B-4
PLC-2 with Series C adapter, B-5
PLC-3, 2-6
PLC-3 with -AS and -ASB Series A and
B, B-6
PLC-3 with -AS, Series A or B adapter,
B-8
PLC-3 with Series C adapter, B-7
PLC-5 with -AS or -ASB Series A, B, with complementary I/O, B-10
PLC-5 with complementary I/O, 2-8,
B-11
PLC-5 with Series C, without complementary I/O, B-9
PLC-5 without complementary I/O, 2-7
T terminating resistor, 2-14 troubleshooting guide, 4-2 troubleshooting indicators, 4-1
Publication 1771ĆUM001A-US-P - February 2000
AllenĆBradley
Publication Problem Report
If you find a problem with our documentation, please complete and return this form.
Pub. Name
Cat. No.
Remote I/OAdapter User Manual
1771-ASB Series E
Pub. No.
1771-UM001A
Pub. Date
February 2000
Part No.
957259-94
Check Problem(s) Type:
Technical Accuracy
Describe Problem(s): text illustration
Internal Use Only
Completeness
What information is missing?
procedure/step example explanation illustration guideline other definition feature info in manual
(accessibility) info not in manual
Clarity
What is unclear?
Sequence
What is not in the right order?
Other Comments
Use back for more comments.
Your Name Location/Phone
Return to: Marketing Communications, AllenĆBradley Co., 1 AllenĆBradley Drive, Mayfield Hts., OH 44124Ć6118 Phone: (216)646Ć3176
FAX: (216)646Ć4320
Publication ICCGĆ5.21ĆAugust 1995 PN 955107Ć82
Other Comments
PLEASE FASTEN HERE (DO NOT STAPLE)
PLEASE FOLD HERE
BUSINESS REPLY MAIL
FIRST-CLASS MAIL PERMIT NO. 18235 CLEVELAND OH
POSTAGE WILL BE PAID BY THE ADDRESSEE
1 ALLEN BRADLEY DR
MAYFIELD HEIGHTS OH 44124-9705
NO POSTAGE
NECESSARY
IF MAILED
IN THE
UNITED STATES
Publication 1771ĆUM001AĆUSĆP - February 2000
AllenĆBradley, a Rockwell Automation Business, has been helping its customers improve productivity and quality for more than 90 years. We design, manufacture and support a broad range of automation products worldwide. They include logic processors, power and motion control devices, operator interfaces, sensors and a variety of software. Rockwell is one of the world's leading technology companies.
Worldwide representation.
Argentina•Australia•Austria•Bahrain•Belgium•Brazil•Bulgaria•Canada•Chile•China,PRC•Colombia•CostaRica•Croatia•Cyprus•CzechRepublic•Denmark•
Ecuador • Egypt • El Salvador • Finland • France • Germany • Greece • Guatemala • Honduras • Hong Kong • Hungary • Iceland • India • Indonesia • Ireland • Israel • Italy •
Jamaica• Japan • Jordan • Korea • Kuwait•Lebanon• Malaysia • Mexico •Netherlands• NewZealand • Norway • Pakistan • Peru • Philippines • Poland • Portugal •Puerto
Rico •Qatar•Romania•Russia-CIS•SaudiArabia•Singapore•Slovakia•Slovenia•SouthAfrica,Republic•Spain•Sweden• Switzerland• Taiwan•Thailand• Turkey•
United Arab Emirates • United Kingdom • United States • Uruguay • Venezuela • Yugoslavia
AllenĆBradley Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 382Ć2000 Fax: (1) 414 382Ć4444
Publication 1771ĆUM001AĆUSĆP - February 2000
Publication 1771ĆUM001AĆUSĆP - February 2000
PN957259-94
Copyright 2000 AllenĆBradley Company, Inc. Printed in USA

Public link updated
The public link to your chat has been updated.
Advertisement
Key features
- Transmits data up to 10,000 cable-feet
- Faster backplane scanning and data transmission
- Supports any mix of I/O
- Supports three methods of I/O addressing
- Checks I/O configuration on power-up
- Emulates series B adapters
- Enhanced diagnostic indicators