Allen-Bradley ControlNet PLC-5 User manual

ControlNet PLC-5
Programmable
Controllers
Catalog Numbers 1785-L20C15,
-L40C15, -L46C15, -L80C15
User Manual
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Important User Information
Because of the variety of uses for the products described in this
publication, those responsible for the application and use of these
products 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. In no event will Allen-Bradley be responsible or
liable for indirect or consequential damage resulting from the use or
application of these products.
Any illustrations, charts, sample programs, and layout examples
shown in this publication are intended solely for purposes of
example. Since there are many variables and requirements associated
with any particular installation, Allen-Bradley does not assume
responsibility or liability (to include intellectual property liability) for
actual use based upon the examples shown in this publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the
Application, Installation and Maintenance of Solid-State Control
(available from your local Allen-Bradley office), describes some
important differences between solid-state equipment and
electromechanical devices that should be taken into consideration
when applying products such as those described in this publication.
Reproduction of the contents of this copyrighted publication, in whole
or part, without written permission of Rockwell Automation, is
prohibited.
Throughout this publication, notes may be used to make you aware of
safety considerations. The following annotations and their
accompanying statements help you to identify a potential hazard,
avoid a potential hazard, and recognize the consequences of a
potential hazard:
WARNING
!
Identifies information about practices or
circumstances that can cause an explosion in a
hazardous environment, which may lead to personal
injury or death, property damage, or economic loss.
ATTENTION
!
Identifies information about practices or
circumstances that can lead to personal injury or
death, property damage, or economic loss.
IMPORTANT Identifies information that is critical for successful
application and understanding of the product.

Ethernet is a registered trademark of Intel Corporation, Xerox Corporation, and Digital Equipment Corporation.
ControlNet is a trademark of ControlNet International.
Allen-Bradley, PLC, PLC-2, PLC-3 and PLC-5 are registered trademarks of Rockwell Automation, Inc.
Data Highway Plus, DH+, RSLinx, RSLogix, RSNetWorx, RSNetworx for ControlNet, FLEX I/O , PLC-5/11, -5/20,
-5/20C, -5/26, -5/30, -5/40, -5/46, -5/40L, -5/40C, -5/60, -5/60L, -5/80, -5/80C, -5/86, -5/20E, -5/40E, and -5/80E are
trademarks of Rockwell Automation, Inc.
ATTENTION
!
Environment and Enclosure
This equipment is intended for use in a Pollution
Degree 2 industrial environment, in overvoltage
Category II applications (as defined in IEC
publication 60664-1), at altitudes up to 2000 meters
without derating.
This equipment is considered Group 1, Class A
industrial equipment according to IEC/CISPR
Publication 11. Without appropriate precautions,
there may be potential difficulties ensuring
electromagnetic compatibility in other
environments due to conducted as well as radiated
disturbance.
This equipment is supplied as "open type"
equipment. It must be mounted within an enclosure
that is suitably designed for those specific
environmental conditions that will be present and
appropriately designed to prevent personal injury
resulting from accessibility to live parts. The
interior of the enclosure must be accessible only by
the use of a tool. Subsequent sections of this
publication may contain additional information
regarding specific enclosure type ratings that are
required to comply with certain product safety
certifications.
See NEMA Standards publication 250 and IEC
publication 60529, as applicable, for explanations
of the degrees of protection provided by different
types of enclosure. Also, see the appropriate
sections in this publication, as well as the
Allen-Bradley publication 1770-4.1 ("Industrial
Automation Wiring and Grounding Guidelines"),
for additional installation requirements pertaining to
this equipment.
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Rockwell Automation
Support
Before you contact Rockwell Automation for technical assistance, we
suggest you please review the troubleshooting information contained
in this publication first.
If the problem persists, call your local Rockwell Automation
representative or contact Rockwell Automation in one of the following
ways:
Your Questions or Comments on this Manual
If you find a problem with this manual, please notify us of it on the
enclosed How Are We Doing form.
Phone United
States/Canada 1.440.646.5800
Outside United
States/Canada You can access the phone number for your country via the Internet:
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Information
Internet ⇒1. Go to http://www.ab.com
2. Click on
Product Support
(http://support.automation.rockwell.com)

1785-UM022B-EN-P - February 2002
Summary of Changes
Summary of Changes
The information below summarizes the changes to the ControlNet
PLC-5 Programmable Controllers User Manual.
To help you find new and updated information, look for the revision
bars as shown to the left of this paragraph.
New Information The following table highlights new information and where its located
in this manual. The following paragraphs describe software
requirements product enhancements.
Software and Hardweare
Requirements Use the following table to understand specific features that are only
available with specific versions and releases of software and PLC-5
processors:
For This New Information See
Requested Packet Interval details Chapter 2
ControlNet Unscheduled Data-Transfer Operations
Scheduled Connection Types
Multicast Inputs
Distributed Keeper Functionality
Understanding ControlNet System Software Chapter 3
Using the ControlNet I/O Transfer Instruction Chapter 4
CIP Generic and Generic Bi-directional CIO Command Types
Using Selectable Timed Interrupts
Recovering from Major Fault 200
Using the General Status Indicators Chapter 5
Relay Cartridge Capability Appendix A
Processor Status File - Memory Card ID Word 68 Appendix B
Hot Backup Major Fault Codes
ControlNetI/O Map Entry StatusWords Appendix D
Error Messages
Hot Backup Major Fault Codes Appendix E
If you want this feature: You need both of these
versions of software: Andthis PLC-5Processor
(ControlNet Series F,
Revision A or later)
RSLogix5 RSNetWorx:
Standard functionality 2.2 or later 1.8 or later all
Hot Backup (1771 and Flex I/O) 3.21 or later 1.8 or later PLC-5/40 or -5/80
Multicast Outputs 3.21 or later 3.0 or later PLC-5/20, -5/40 or -5/80
SLC I/O (also with Hot Backup) 5.0 or later 3.0 or later PLC-5/40 or -5/80
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soc-ii
Notes

Table of Contents
1785-UM022B-EN-P - February 2002
Installing Your ControlNet
PLC-5 Processor Chapter 1
Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Prevent Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Identifying ControlNet PLC-5 Processor Components . . . . . . . . . . . . . 1-3
Before You Install the Programmable Controller. . . . . . . . . . . . . . . . . 1-5
Install or Remove the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Setting the I/O Chassis Backplane Switches. . . . . . . . . . . . . . . . . . . . 1-9
Setting the I/O Chassis Configuration Plug . . . . . . . . . . . . . . . . . . . . 1-10
Installing Keying Bands for the Processor. . . . . . . . . . . . . . . . . . . . . 1-10
Selecting the DH+ Station Address of Channel 1A . . . . . . . . . . . . . . 1-11
Specifying the Serial Interface of Channel 0. . . . . . . . . . . . . . . . . . . 1-12
Selecting the ControlNet Network Address of Channel 2 . . . . . . . . . 1-12
Inserting/Removing the Processor into/from the I/O Chassis. . . . . . . 1-13
Installing a Remote I/O Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Installing a DH+ Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Connecting to a ControlNet Network . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Connecting a Programming Terminal. . . . . . . . . . . . . . . . . . . . . . . . 1-19
DH+ Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Serial Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
ControlNet Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
Selecting Appropriate Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
Serial Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
DH+ Programming Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Remote I/O Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
ControlNet Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Planning to Use Your ControlNet
PLC-5 Processor Chapter 2
Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Understanding ControlNet I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Scheduled Data-Transfer Operations on a ControlNet Network. . . . 2-2
Unscheduled Data-Transfer Operations on a ControlNet Network. . 2-4
Using I/O Forcing Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Using Immediate Data-Transfer Operations . . . . . . . . . . . . . . . . . . 2-8
Using Process Control Sample Complete . . . . . . . . . . . . . . . . . . . . 2-9
Clearing the PCSC New Data and PCSC Overflow Bits. . . . . . . . 2-11
Considerations When Using PCSC. . . . . . . . . . . . . . . . . . . . . . . 2-11
Understanding Scheduled Connection Types . . . . . . . . . . . . . . . . . . 2-11
Allowable Scheduled Connection Type Combinations. . . . . . . . . . 2-12
Multiple Processors Can Control I/O . . . . . . . . . . . . . . . . . . . . . 2-13
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ii Table of Contents – ControlNet PLC-5 Programmable Controllers
1785-UM022B-EN-P - February 2002
Understanding Multicast Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Understanding Multicast Outputs . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Using Multicast Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Understanding ControlNet I/O Mapping . . . . . . . . . . . . . . . . . . . . . . 2-16
Reserving Space for Non-ControlNet I/O. . . . . . . . . . . . . . . . . . . . 2-16
Processor-Resident Local I/O . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Remote I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Supported ControlNet I/O Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Discrete I/O Data Transfer Mapping . . . . . . . . . . . . . . . . . . . . . 2-19
Non-Discrete I/O Data Transfer Mapping . . . . . . . . . . . . . . . . . 2-19
1771 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
1747 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
1794 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Other ControlNet Processors . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Using I/O Mapping Techniques. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Understanding Discrete Mapping . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Optimizing the I/O Image Table . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Optimizing the I/O Image Table without Slot Complementary . . 2-23
Optimizing the I/O Image Table with Slot Complementary. . . . . 2-27
Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Using the ControlNet PLC-5 Processor in a ControlNet I/O System . . 2-31
Distributed Keeper Functionality. . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Converting from a Non-ControlNet Remote I/O System
to a ControlNet I/O System . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Converting from ControlNet Phase 1.0 or 1.25
to ControlNet Phase 1.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Understanding the ControlNet
System Software Chapter 3
Configuring and Programming Your ControlNet System . . . . . . . . . . . 3-1
Using ControlNet Message Instructions . . . . . . . . . . . . . . . . . . . . . . . 3-1
I/O Configuration Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Uploading and Downloading Software Projects. . . . . . . . . . . . . . . . 3-3
Using RSNetWorx to Perform Verification Activities. . . . . . . . . . . . . 3-4
For More Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Table of Contents – ControlNet PLC-5 Programmable Controllers iii
1785-UM022B-EN-P - February 2002
Programming Your
ControlNet System Chapter 4
Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Using ControlNet Message Instructions . . . . . . . . . . . . . . . . . . . . . . . 4-1
Multihop Messaging Via the MSG Instruction . . . . . . . . . . . . . . . . . 4-2
Option to Close Communication Connection when MSG is Done. . . 4-3
Understanding the ControlNet PLC-2 Compatibility File . . . . . . . . . 4-3
Using the ControlNet I/O Transfer Instruction . . . . . . . . . . . . . . . . . . . 4-3
Sending Continuous Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
1771 ControlNet Transfers in PIIs and STIs. . . . . . . . . . . . . . . . . . . 4-5
Using ControlNet Immediate Data Input and Output Instructions. . . . . 4-6
Using Selectable Timed Interrupts with a Program
on a ControlNet Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Recovering from Major Fault 200 and 201. . . . . . . . . . . . . . . . . . . . . 4-9
Monitoring and Troubleshooting
Your ControlNet System Chapter 5
Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Using the General Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Using the ControlNet Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . 5-3
Using the DH+/RIO Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Monitoring ControlNet Configuration and Status. . . . . . . . . . . . . . . . . 5-6
Processor Specifications Appendix A
Processor Status File Appendix B
S:0 - S:2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
S:3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
S:11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
S:12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
S:13-S:24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11
S:26-S:35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12
S:36-S:78 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13
S:79-S127. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15
ControlNet Instruction Set Appendix C
ControlNet I/O Transfer Instruction . . . . . . . . . . . . . . . . . . . . . . . . C-1
Message Instructions on a ControlNet Network . . . . . . . . . . . . . . . C-1
Immediate Data I/O Instructions . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Instruction Timing and Memory Requirements. . . . . . . . . . . . . . . . . . C-2
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ControlNet I/O Map-Entry
Status Words and
Error Messages
Appendix D
I/O Map-Entry Status Words. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-4
Fault Codes Appendix E
Clearing Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
Additional Major Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2
ControlNet Diagnostics
File Layout Appendix F

1785-UM022B-EN-P - February 2002
Preface
Preface
Introduction This manual describes how to install your programmable controller
and how to plan for, configure, and use the features of a
1785-L20C15, 1785-L40C15, 1785-L46C15 or 1785-L80C15
programmable controller that are unique to the ControlNet™network.
When we refer to ControlNet PLC-5 programmable controllers (or
“processors”) in this manual, we mean the phase 1.5 programmable
controllers:
• Catalog number 1785-L20C15 (or PLC-5/20C™)
• Catalog number 1785-L40C15 (or PLC-5/40C™)
• Catalog number 1785-L46C15 (or PLC-5/46C™)
• Catalog number 1785-L80C15 (or PLC-5/80C™)
For detailed information about features that the ControlNet PLC-5
processors share with Ethernet and Enhanced processors, see the
Enhanced and Ethernet PLC-5 Programmable Controllers User
Manual, publication 1785-6.5.12.
Audience The information in this manual is intended for engineers and
technicians who are installing, programming, and maintaining a
control system that includes a ControlNet PLC-5 programmable
controller.
You should have a background in control-system applications and a
basic knowledge of:
• programmable real-time control systems
•thePLC-5
®control system
• your operation’s required systems and applications
Contents
If you want to read about: Go to:
Installing your ControlNet PLC-5 processor
Setting switches
Installing communication links
Chapter 1
Planningto use your ControlNet PLC-5 processor
Understanding ControlNet I/O
Using a ControlNet PLC-5 processor
Chapter 2
Understanding the programming software used to configure your ControlNet
system Chapter 3
Programming your ControlNet system Chapter 4
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P-2 Preface
Terminology
Monitoring and troubleshooting your ControlNet system
Using the status indicators Chapter 5
Processor specifications Appendix A
Processor status file Appendix B
ControlNet instructions Appendix C
ControlNet I/O map table entry status words and error messages Appendix D
Fault codes Appendix E
ControlNet diagnostics file layout Appendix F
If you want to read about: Go to:
Term Description
Actual Packet Interval (API) the actual time it takes for the ControlNet network to update the requested data. The largest
binary multiple of the Network Update Time (NUT), smaller or equal to the Requested Packet
Interval (RPI). For more information, see page 2-2.
ControlNet network communication architecture that allows the exchange of data between Allen-Bradley
Company, Inc. products and certified third-party products
ControlNet PLC-5 processors references PLC-5/20C, -5/40C, -5/46C and -5/80C programmable controllers phase 1.5
connection opened communication path between two nodes on a ControlNet network
DData Input File (DIF) integer file used by ControlNet PLC-5 processors to store discrete and non-discrete input
data. The DIF cannot be forced
Data Output File (DOF) integer file used by ControlNet PLC-5 processors to store discrete and non-discrete output
data. The DOF cannot be forced
discrete I/O data transfer type of data transfer in which single units of I/O have discrete relationships with values in
the processor’s data table; uses the processor’s input- and output-image tables (I and O
files); configured on a per-node basis in the ControlNet I/O map table
frame single data transfer on a ControlNet link
drop cable cable that connects a ControlNet node to the trunk cable; integral part of 1786 taps
I/O map table
(scanlist configuration) table that you configure using the programming software to map data from an I/O chassis
and other devices on the ControlNet network to particular data table file addresses
keeper device that stores and distributes ControlNet configuration data to all nodes on the network.
A minimum of one keeper device is required on each ControlNet network.
link collectionof ControlNetnodeswithunique networkaddressesintherange of01-99; segments
connected by repeaters make up a link; links connected by bridges make up a network
map table entry
(scanlist entry) one entry in the I/O map table that you configure using the programming software to map
data from one I/O chassis or other device on ControlNet to particular data table file
addresses
network access port (NAP) port that provides a temporary ControlNet-network connection through an RJ-45 connector
network address node’s address on the ControlNet network
network update interval (NUI) single occurrence of the ControlNet Network Update Time (NUT)

1785-UM022B-EN-P - February 2002
Preface P-3
network update time (NUT) smallest repetitive time interval in which data can be sent on the ControlNet network
node port of a physical device connecting to the ControlNet network that requires a network
address in order to function on the network; a link may contain a maximum of 99 nodes
non-discrete I/O data transfer type of data transfer in which blocks of data transferredto or froma single I/O module use
integer input and output data table files that you specify; scheduled transfers are configured in
the ControlNet I/O map table,unscheduledtransfers make use of ControlNetI/O Transfer (CIO)
instructions
owner device that controls the outputs of an adapter
processor any one of the ConrolNet PLC-5 programmable controllers
redundant media dual-cable system that allows you to receive the best signal over a ControlNet network
repeater two-port active physical-layer device that reconstructs and retransmits all traffic that it
hears on one ControlNet segment toanother segment
Requested Packet Interval
(RPI) the maximum time allowed for the ControlNet network to update requested data. The RPI is user-selectable on a per connection basis. For more information, see page 2-2.
scheduled maximum node
(SMAX) themaximum ControlNetnode number that can transmit and receive scheduleddata
scheduled transfers deterministic and repeatable transfers that are continuous and asynchronous to the ladder-
logic program scan
scheduled connection types rack connection - scheduled connection made from the PLC-5C to I/O adapters to some or
all of the discrete I/O on the adapter
module connection - scheduled connection made from the PLC-5C to I/O adapters to
individual modules
segment trunkline section of ControlNet network with terminators at each end; a segment does not
include repeaters; segments connected byrepeaters make up a link
tap component that connects products to the ControlNet trunk cable; a tap is required for each
node and for each side of a repeater
terminator 75W resistor—mounted in a BNC plug—placed on each end of a ControlNet segment to
prevent reflections from occurring at the ends of the cable
trunk cable bus or central part of the ControlNet cable system
trunk-cable section length of trunk cable between any two ControlNet taps
unscheduled maximum node
(UMAX) the maximumControlNet node number thatcan transmit and receive unscheduleddata
unscheduled transfers non-deterministic data transfers through ladder-initiated communication or programming
devices
Term Description
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P-4 Preface
Related PLC-5 Publications The 1785 PLC-5 programmable-controller and ControlNet
documentation is organized into manuals according to the tasks that
you perform:
For more information about 1785 PLC-5 programmable controllers,
contact your local Rockwell Automation sales office or distributor.
To view or order these publications online, visit:
www.theautomationbookstore.com
Related ControlNet Publications For detailed information about different aspects of planning and
installing your ControlNet network, see the following publications:
To view or order these publications online, visit:
www.theautomationbookstore.com
or contact your local Rockwell Automation sales office or distributor.
Publication Publication Number
Enhanced PLC-5 Processor System Overview 1785-2.36
Enhanced and Ethernet PLC-5 Programmable Controllers User
Manual 1785-6.5.12
ControlNet PLC-5 Programmable Controllers User Manual 1785-UM022B-EN-P
ControlNet Cable System Planning and Installation Manual 1785-6.2.1
ControlNet PLC-5 Programmable Controllers Quick Start 1785-10.6
1785-PLC-5 Programmable Controllers Quick Reference 1785-7.1
Publication Publication Number
ControlNet Cable System Component List AG-2.2
ControlNet Coax Cable System Planning and Installation Manual 1786-6.2.1
ControlNet Network Access Cable Installation Instructions 1786-2.6
ControlNet System Overview 1786-SO001A-EN-P
ControlNet PLC-5 Hot Backup System User Manual 1785-6.5.24
ControlNet Fiber Planning Installation Guide CNET-IN001A-EN-P
Industrial Automation Wiring and Grounding Guidelines 1770-4.1
System Design for Control of Electrical Noise GMC-RM001A-EN-P

1785-UM022B-EN-P - February 2002
Chapter 1
Installing Your ControlNet
PLC-5 Processor
Using This Chapter
For detailed information about installing chassis and adapters, see the
Enhanced and Ethernet PLC-5 Programmable Controllers User
Manual, publication 1785-6.5.12.
If you want to read about: Go to page:
Preventing Electrostatic Discharge 1-2
Identifying the processor components 1-3
What to do before you begin installation 1-5
Installing and disposing of the processor battery 1-6
Setting the I/O chassis backplane switches 1-11
Setting the I/O chassis configuration plug 1-10
Installing keying bands for the processor 1-10
Selecting theDataHighway Plus™ (DH+™) station address
of Channel 1A 1-11
Specifying the serial interface for Channel 0 1-12
Selecting the ControlNet network address of Channel 2 1-12
Inserting/removing the processor into/from the I/O chassis 1-13
Installing a remote I/O link 1-13
Installing a DH+ link 1-15
Connecting to a ControlNet network 1-17
Connecting a programming terminal 1-19
Selecting appropriate cables 1-22
AB Drives

1785-UM022B-EN-P - February 2002
1-2 Installing Your ControlNet PLC-5 Processor
Prevent Electrostatic Discharge
This equipment is sensitive to electrostatic discharge
which can cause internal damage and affect normal
operation. Follow these guidelines when you handle
this equipment:
• touch a grounded object to discharge potential
static
• wear an approved grounding wrist strap
• do not touch connectors or pins on component
boards
• do not touch circuit components inside the
equipment
• if available, use a static-safe workstation
• when not in use, store the equipment in appropriate
static-safe packaging
ATTENTION
!

1785-UM022B-EN-P - February 2002
Installing Your ControlNet PLC-5 Processor 1-3
Identifying ControlNet PLC-5
Processor Components Figure 1.1 and Figure 1.2 show the front panels of the ControlNet
PLC-5 processors.
Figure 1.1 PLC-5/20C Processor Front Panel
Battery Status Indicator
(Red)
Processor RUN/FAULT Status Indicator
(Green/Red)
Force Status Indicator
(Amber)
Channel 0 Communication ACTIVE/
FAULT Status Indicator
(Green/Red)
Memory Module Space
Battery Compartment
Use this port with ASCII or DF1 full-duplex,
half-duplex master, and half-duplex slave
protocols. The port's default configuration supports
processor programming:
Keyswitch-selects processor mode
Channel 0
Serial Port-25-pin D-shell; supports standard EIA
RS-232C and RS-423; is RS-422A compatible
DH+ Programming Terminal Connection
to Channel 1A
8-pin mini-DIN, parallel with 3-pin
connectors of Channel 1A
one stop-bit
BCC error check
no handshaking
DF1 point-to-point
2400 bit/s
no parity
Channel 2 ControlNet Status Indicators
(Green/Red)
Channel 2
ControlNet Redundant Media
Ports BNC; dedicated
Channel 0 is optically coupled (provides high electrical
noise immunity) and can be used with most RS-422A
equipment as long as:
termination resistors are not used
the distance and transmission rate are reduced to
comply with RS-423 requirements
ControlNet I/O Status Indicator
(Green/Red)
ControlNet Network Access Port
(NAP)-RJ45 connector
Channel 1 Status Indicators (Green/Red)
Channel 1A
3 pin; dedicated DH+
Channel 1B
3 pin; default is remote I/O scanner;
configurable for:
remote I/O scanner
remote I/O adapter
DH+ communication
unused
1
1
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1785-UM022B-EN-P - February 2002
1-4 Installing Your ControlNet PLC-5 Processor
Figure 1.2 PLC-5/40C, -5/46C, and -5/80C Processors Front Panel
Battery Status Indicator
(Red)
Processor RUN/FAULT Status Indicator
(Green/Red)
Force Status Indicator
(Amber)
Channel 0 Communication ACTIVE/FAULT
Status Indicator
(Green/Red)
Memory Module Space
Battery Compartment
Use this port with ASCII or DF1 full-duplex,
half-duplex master, and half-duplex slave
protocols. The port’s default configuration supports
processor programming:
Channel 0
Serial Port-25-pin D-shell; supports standard EIA
RS-232C and RS-423; is RS-422A compatible
one stop-bit
BCC error check
no handshaking
DF1 point-to-point
2400 bps
no parity
Keyswitch-selects processor mode
DH+ Programming Terminal Connection
to Channel 1A
8-pin mini-DIN, parallel with 3-pin connectors
of Channel 1A; use only when Channel 1A is
configured for DH+ communications
Channel 2
ControlNet Redundant Media Ports*
BNC; dedicated
Channel 0 is optically coupled (provides high
electrical noise immunity) and can be used with most
RS-422A equipment as long as:
termination resistors are not used
the distance and transmission rate are reduced to
comply with RS-423 requirements
ControlNet Network Access Port
(NAP)-RJ45 connector
Channel 1 Status Indicators (Green/Red)
Channel 1A
3 pin; default is DH+; configurable for:
remote I/O scanner
remote I/O adapter
DH+ communication
unused
Channel 1B
3 pin; default is remote I/O scanner;
configurable for:
remote I/O scanner
remote I/O adapter
DH+ communication
unused
Channel 2 ControlNet Status Indicators
(Green/Red)
ControlNet I/O Status Indicator
(Green/Red)
1
1

1785-UM022B-EN-P - February 2002
Installing Your ControlNet PLC-5 Processor 1-5
Before You Install the
Programmable Controller Before installing your ControlNet PLC-5 processor:
1. Check your processor package, and make sure that you have the
following:
If any items are missing or incorrect, contact your local Rockwell
Automation sales office or distributor.
2. Install and connect a chassis and power supply.
Use the following table to find more information about completing
these tasks:
ControlNet PLC-5® Programmable Controller,
1785-L20C15, -L40C15, -L46C15, or -L80C15
Contents of Tray 1 Lithium Battery, 1770-XYC
1 DIN connector cover
4Terminating resistors—150Ω1
2 or 42Terminating resistors—82Ω3
2 or 423-pin connectors
2Keys
1 Battery cover with screw
1 1784-CP7 cable adapter for 1784-CP,
-CP5 cables
ControlNet PLC-5 Programmable Controllers Quick
Start, publication number 1785-10.6
1Identified by four colored bands: brown, green, brown, and gold
2Two with a PLC-5/20C processor, four with PLC-5/40C, -5/46C and -5/80C
processors
3Identified by four colored bands: gray, red, black, and gold
Processor
Documentation
Chassis Type Chassis Document Power Supply Power Supply Document
1771-A1B, -A2B, -A3B, - A3B1, -A4B 1771-2.210 1771-P1 1771-2.6
1771-P2 1771-2.7
1771-P3 1771-2.111
1771-P4 1771-2.111
1771-P4R 1771-5.3
1771-P4S 1771-2.13
1771-P5 1771-2.111
1771-P6R 1771-5.3
1771-P6S 1771-5.11
1771-P7 1771-5.56
AB Drives

1785-UM022B-EN-P - February 2002
1-6 Installing Your ControlNet PLC-5 Processor
Install or Replace the Battery A 3.0 volt lithium battery (cat. no. 1770-XYC) is included with your
processor.
If the LED on the front of the processor indicates BATT, it means that
the battery must be replaced. You must use an exact replacement
battery (cat. no. 1770-XYC).
Important: In non-hazardous environments, it may be possible to
replace the battery while the processor is powered so that your
programs are maintained in memory. You may lose your programs if
you remove the battery when power is removed.
Lithium battery requirements:
• do not short, recharge, heat above 85° C,
disassemble or expose contents to water
• use only the 1770-XYC battery in the processor.
DO NOT use any other type or size of battery.
ATTENTION
!
When you connect or disconnect the battery, an
electrical arc can occur. This could cause an
explosion in hazardous location installations. Be sure
that power is removed or the area is nonhazardous
before proceeding.
• For safety information on the handling of lithium
batteries, including handling and disposal of
leaking batteries, refer to Guidelines for Handling
Lithium Batteries, publication AG-5.4
• Store batteries in a cool, dry environment. We
recommend 25° C with 40% or 60% relative
humidity. You may store batteries up to 30 days
between -45°- 85° C, such as during
transportation. To avoid possible leakage, do not
store batteries above 60° C for more than 30 days.
WARNING
!