Allen-Bradley PLC-5 series User manual

User
Manual
PLC-5 Ethernet
Interface Module
(Cat. No. 1785-ENET)
Allen-Bradley

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.
Important User
Information

Publication 1785-6.5.19–June 1996
Chapter 1
Installing and Configuring the Interface Module 1–2 . . . . . . . . . . . . . . .
What Y
ou Have Done 1–7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What’s Next
1–7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2
Using This Chapter 2–1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Y
ou Begin 2–2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Necessary
Equipment 2–3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventing Electrostatic Discharge Damage (ESD)
2–3 . . . . . . . . . . . . .
Complying
with European Union Directives 2–4 . . . . . . . . . . . . . . . . . .
EMC Directive
2–4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low V
oltage Directive 2–4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing
the Interface Module 2–5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attach
the Connector Header to the Processor 2–5 . . . . . . . . . . . . . .
Connect
the Interface Module to the Processor 2–6 . . . . . . . . . . . . .
Install
the Processor/Interface Module into the Chassis 2–7 . . . . . . . .
Removing
the Interface Module 2–8 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3
Using This Chapter 3–1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Y
ou Begin 3–1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring
Channel 3A 3–2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Designate
Channel 3A to Support the Interface Module 3–2 . . . . . . . .
Specify
Ethernet-specific Information 3–3 . . . . . . . . . . . . . . . . . . . . .
Manually
Entering Module Configuration Information 3–3 . . . . . . .
Dynamically
Supplying Configuration Information using BOOTP 3–5
Using the BOOTP Servers on the Utility Disk 3–6 . . . . . . . . . . . . . . . . .
Install the DOS/Windows BOOTP server disk
3–6 . . . . . . . . . . . . . . .
Edit
the DOS/Windows BOOTP Configuration File 3–7 . . . . . . . . . . .
Run
the Boot Server Utility 3–9 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running the DOS-Based Utility
3–9 . . . . . . . . . . . . . . . . . . . . . . .
Running
the Windows-Based Utility 3–10 . . . . . . . . . . . . . . . . . . . .
Table of Contents
Quick
S
tart
Installin
g
the
Interface
Mo
d
ule
Confi
g
urin
g
the
Interface Module for
E
thernet
Communication

Table of Contentsii
Publication 1785-6.5.19–June 1996
Chapter 4
Using This Chapter 4–1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applying Power to the Chassis
4–1 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Monitoring the LEDs
4–1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Establishing
an Ethernet Connection 4–4 . . . . . . . . . . . . . . . . . . . . . . .
Monitoring
Ethernet Status Data 4–5 . . . . . . . . . . . . . . . . . . . . . . . . . .
Using
the Message Instruction 4–7 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interpreting Error Codes
4–9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SNMP
Support 4–10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving
and Restoring Programs 4–10 . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix A
Appendix B
Appendix C
Appendix D
Communicatin
g
V ia
the
Interface Module
Module Specifications
Peformance Data
SNMP Management
Information Base (MIB) II
Data Groups
Status LED Error Codes

Preface
Publication 1785-6.5.19–June 1996
Preface
Read this preface to familiarize yourself with the rest of the manual.
This preface covers the following topics:
•who should use this manual
•the purpose of this manual
•Allen-Bradley support
Use this manual if you are responsible for designing, installing,
programming, or troubleshooting control systems that use
Allen-Bradley programmable controllers or interface modules.
You should have a basic understanding of PLC-5 programmable
controller products and the following Ethernet-related topics:
•TCP/IP protocol
•Internet addressing
If you do not have an understanding of these areas, contact your
local Allen-Bradley representative for information on available
training courses before using this product.
This manual:
•tells you what equipment you must provide for installing the
PLC-5 Ethernet Interface Module
•helps you install and configure the interface module
•helps you connect to an Ethernet link and
communicate via the interface module
Who Should Use this
Manual
Purpose of this Manual

PrefaceP–2
Publication 1785-6.5.19–June 1996
Contents of this Manual
Chapter Title Contents
Preface Describes the purpose, background, and scope of
this manual. Also specifies the audience for whom
this manual is intended.
1Quick Start Provides brief installation and configuration
procedures for the advanced user.
2Installing the Interface Module
Explains and illustrates how to install and remove
the interface module into and from the 1771 I/O
chassis. Also specifies compliance with European
Union Directives.
3Configuring the Interface Module
for Ethernet Communication
Provides instructions for:
•configuring channel 3A to support the interface module
• assigning an IP address to the module
•using the BOOTP servers on the utility disk
4Communicating Via the
Interface Module
Describes how to establish an Ethernet connection
and monitor status data. Also specifies how to use
the MSG instruction over the Ethernet link.
Appendix A Specifications Provides physical, electrical, and environmental
specifications for the interface module.
Appendix B Performance Data Provides measured performance data for the
interface module.
Appendix C SNMP Management Information
Base (MIB) II Data Groups Describes the SNMP Management Information Base (MIB) II Data Groups.
Appemdix D Status LED Error Codes Describes the status LED error codes.
Related Documentation
For additional information regarding Allen-Bradley programmable
controllers and related products, see the Enhanced and Ethernet
PLC-5 Programmable Controllers User Manual, publication
1785-6.5.12.
To obtain a copy, contact your local Allen-Bradley office or
distributor.

Preface P–3
Publication 1785-6.5.19–June 1996
Allen-Bradley offers support services worldwide, with over 75
Sales/Support Offices, 512 authorized Distributors and 260
authorized Systems Integrators located throughout the United States
alone, plus Allen-Bradley representatives in every major country in
the world.
Local Product Support
Contact your local Allen-Bradley representative for:
•sales and order support
•product technical training
•warranty support
•support service agreements
Technical Product Assistance
If you need technical assistance, call your local Allen-Bradley
representative.
Your Questions or Comments on this Manual
If you find a problem with this manual, please notify us of it on the
enclosed Publication Problem Report.
If you have any suggestions for how this manual could be made
more useful to you, please contact us at the address below:
Technical Communication
Allen-Bradley Comapny
1 Allen-Bradley Drive
Mayfield Heights, Ohio 44124
Allen-Bradley Support

Chapter 1
Publication 1795-6.5.19–June 1996
Quick Start 1
This chapter can help you get started quickly using the PLC-5
Ethernet Interface Module. We base the procedures here on the
assumption that you have an understanding of:
•PLC-5 products
•TCP/IP protocol
•Internet addressing
Because this is a quick start guide for experienced users, this chapter
does not contain detailed explanations about the procedures listed. It
does, however, reference other chapters in this book where you can
get more information.
If you have any questions or are unfamiliar with the terms used or
concepts presented in the procedural steps, always read the
referenced chapters and other recommended documentation before
trying to apply the information.
This chapter:
•tells you what equipment you must provide for installing the
Ethernet interface module
•helps you install and configure the module
•helps you connect to an Ethernet link and
communicate via the interface module
20611–M
Status
indicator
External
transceiver
fuse
T ransmit
indicator
Channel 3A:
15-pin AUI
connector port

1–2 Quick Start 1
Publication 1795-6.5.19–June 1996
1. Check
the contents of your shipment.
✔
Quantity Description
1PLC-5 Ethernet Interface Module (1785-ENET)
1
Connector it containing 1 PLC-5 58-pin connector header
1
Connector
k
it containing 1 PLC-5 58-pin connector header
1Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1
1PLC-5 Ethernet Interface Module User Manual,
publication 1785-6.5.19
1BOOTP Utility Diskette
2. Locate
and have ready all equipment and tools necessary for installation.
✔
I/O Chassis
(1771-A1B/B, -A2B/B, -A3/B or -A4B/B)
Any external or internal
Allen-Bradley power supply
ESD
Grounding
Wrist Strap
phillips
screwdriver
PLC-5 Processor
Supported processors and current firmware
(see page 2-1)
Installing and Configuring
the Interface Module

1–3 Quick Start 1
Publication 1795-6.5.19–June 1996
3. Attach
the connector header to the processor .
Reference
Chapter 2
Installing the
Interface Module
Important: Make sure you carefully align the pins and holes before you press the connector header into
the processor. If you improperly align them, you will bend the connector header pins when
you press them together. Do not use excessive force on the connector header when seating it
into the processor. You do not need to key the connector.
4. Use
the captive screws to connect the interface module to the processor .
Reference
Chapter 2
Installing the
Interface Module
Front of the PLC-5 processor
Front of the interface module
Installed connector
header 20597–M
19379
Attach the interface
module to this end.
connector
header
Push the exposed pins
into the holes on the
PLC-5 processor.
!Wear a grounding wrist
strap to guard against ESD.

1–4 Quick Start 1
Publication 1795-6.5.19–June 1996
5. Install
the interface module/processor combination in the left-most slot
of the 1771 I/O chassis.
Reference
Chapter 2
Installing the
Interface Module
6. Assign
an IP address to the interface module.
Reference
Chapter 3
Configuring the
Interface Module
for Ethernet
Communication
Contact your Ethernet network administrator or the international Network Information
Center for a unique IP address.
20582–M
!Be sure power to the
1771 I/O chassis is OFF.

1–5 Quick Start 1
Publication 1795-6.5.19–June 1996
7. Configure
channel 3A for Ethernet communication.
Reference
Chapter 3
Configuring the
Interface Module
for Ethernet
Communication
a. Be sure channel 3A is designated as the channel supporting the 1785-ENET module.
•If you are using 6200 Programming Software, you must have revision 5.2 or later to
configure Channel 3A for Ethernet communication. The PLC-5 processor must also
contain the proper firmware revision. See page 2-1 for information about firmware
revision levels.
•If you are configuring online and the interface module is attached to the
processor, channel 3A will automatically support the interface module.
•If you are configuring offline, follow the steps listed in your programming software
documentation.
b. Specify Ethernet-specific configuration information (including the IP address) using any one of
the following methods:
•manually configure channel 3A using your programming software package.
•use the BOOTP server on the utility disk that came with your interface module (see page
3–5 for information about installing and using this disk).
•use a BOOTP server already on your network (see your Ethernet network administrator
for assistance).
Important: Be sure to assign a diagnostics file to store all status information for channel 3A.
Cursor to the diagnostics file field on the channel configuration screen, type an
unused integer file number (10–999), and press [Enter]
. The system creates an
integer file 44 words long.

1–6 Quick Start 1
Publication 1795-6.5.19–June 1996
8. Apply
power to the I/O chassis and processor .
Reference
Chapter 4
Communicating
Via the Interface
Module
Turn on the I/O chassis power supply.
20634–M
9. Establish
an Ethernet connection.
Reference
Chapter 4
Communicating
Via the Interface
Module
10. Check
that the module is operating correctly .
Reference
Chapter 4
Communicating
Via the Interface
Module
Be sure you have assigned a diagnostics file to store status information for channel 3A.
See step 7 on the previous page.

1–7 Quick Start 1
Publication 1795-6.5.19–June 1996
You have now successfully installed and configured the PLC-5
Ethernet Interface Module for operation with the attached processor
on an Ethernet link. If your module is operating successfully, it is not
necessary to continue reading this manual.
For information about operating PLC-5 processors within
your control system, refer to the Enhanced and Ethernet PLC-5
Programmable Controllers User Manual, publication 1785-6.5.12.
If necessary, refer to the remainder of this manual for more detailed
information about installing and configuring the interface module.
For detailed information about See
Installing the interface module Chapter 2
Configuring the interface module for Ethernet communication Chapter 3
Communicating over Ethernet via the interface module Chapter 4
Interface module specifications Appendix A
What You Have Done
What’s Next

Chapter 2
Publication 1795-6.5.19–June 1996
Installing the Interface Module
Read this chapter to:2
•connect your Ethernet interface module to a PLC-5 processor
•install the processor/interface module combination
in a 1771 I/O chassis.
For information about: See page:
Checking the 1785-ENET package before you begin 2–2
Equipment you must provide 2–3
Preventing Electrostatic Discharge Damage (ESD) 2–3
Complying with the European Union Directive 2–4
Installing the Ethernet interface module 2–5
Removing the Ethernet interface module 2–8
The PLC-5 Ethernet Interface Module is a single-slot module that
attaches to the side of any enhanced PLC-5 Series B or later
processor to provide Ethernet connectivity for the attached processor.
When used with The interface module provides
Enhanced PLC-5 processor Ethernet connectivity without sacrificing DH+/RIO ports
ControlNet PLC-5 processor Ethernet connectivity
Ethernet PLC-5 processor the ability to operate dual Ethernet links
Use the interface module with a programming software package. If
you use 6200 Programming Software, you must use release 5.2 and
later, and any of the following current firmware revisions for PLC-5
processors:
Processor Model Series Revision
Enhanced PLC-5/11, -5/20, -5/26, -5/30, -5/40, -5/40L,
-5/46, -5/46L, -5/60, -5/60L, -5/80, -5/86 D B
PLC-5/V30, -5/V40, -5/V40L, -5/V80 C K
PLC-5/40, -5/40L, -5/46, -5/46L, -5/60, -5/60L B L
PLC-5/30 A L
PLC-5/11, -5/20, -5/26 A K
ControlNet PLC-5/20C, -5/40C, -5/60C, -5/80C D B
Control et
PLC-5/20C -5/40C -5/60C -5/80C
PLC-5/20C, -5/40C C K
Ethernet PLC-5/20E, -5/40E, -5/80E D B
Ethernet
PLC-5/20E -5/40E -5/80E
C K
Status
indicator
External
transceiver
fuse
T ransmit
indicator
Channel 3A:
15-pin AUI
connector
port
1785–ENET
interface module
Enhanced
PLC-5/40
20613–M
Using This Chapter

2–2 Installing the Interface Module
Publication 1795-6.5.19–June 1996
Before installing your Ethernet interface module:
1. Check your Ethernet interface module package.
2. Make certain that you have the following:
Quantity Description
1PLC-5 Ethernet Interface Module (1785-ENET)
1
Connector it containing 1 PLC-5 58-pin connector header
1
Connector
k
it containing 1 PLC-5 58-pin connector header
1Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1
1PLC-5 Ethernet Interface Module User Manual,
publication 1785-6.5.19
1BOOTP Utility Diskette
If any items are missing or incorrect, contact your local
Allen-Bradley sales office or distributor.
3. Locate and record the Ethernet hardware address.
Allen-Bradley assigns each PLC-5 Ethernet interface
module an Ethernet hardware address at the factory. Look
for this address either:
•in the back, upper corner of your module
•in the channel 3A configuration screen of your PLC-5
programming software
19915
Ethernet
hardware
address label
Before You Begin

2–3 Installing the Interface Module
Publication 1795-6.5.19–June 1996
Locate and have ready all the tools and equipment necessary
for installation:
I/O Chassis
(1771-A1B/B, -A2B/B, -A3/B or -A4B/B)
Any external or internal
Allen-Bradley power supply
ESD
Grounding
Wrist Strap
phillips
screwdriver
PLC-5 Processor
Supported processors and current firmware
(see page 2-1)
The Ethernet interface module is shipped in a static-shielded
container to guard against electrostatic discharge (ESD).
ESD can damage integrated circuits or semiconductors in the module
if you touch the backplane connector pins. Avoid electrostatic
damage by observing the following precautions:
•Remain in contact with an approved ground point while handling
the module (by wearing a properly grounded wrist strap).
•Do not touch the backplane connector or connector pins.
•When not in use, keep the module in its static-shielded container.
Wrist strap
Necessary Equipment
Preventing Electrostatic
Discharge Damage (ESD)

2–4 Installing the Interface Module
Publication 1795-6.5.19–June 1996
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 50081-2
EMC – Generic Emission Standard, Part 2 – Industrial
Environment
•EN 50082-2
EMC – Generic Immunity Standard, Part 2 – Industrial
Environment
This product is intended for use in an industrial environment.
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC
Low Voltage, by applying the safety requirements of EN 61131–2
Programmable Controllers, Part 2 – Equipment Requirements
and Tests.
For specific information that this EN requires, see the appropriate
sections in this publication, as well as the following Allen-Bradley
publications:
•Industrial Automation Wiring and Grounding Guidelines
(for noise immunity), publication 1770-4.1
•Guidelines for Handling Lithium Batteries, publication AG-5.4
•Automation Systems Catalog, publication B111
•Enhanced and Ethernet PLC-5 Programmable Controllers User
Manual, publication 1785-6.5.12
ÏÏ
ÏÏ
ÏÏ
ÏÏ
ÏÏ
ÏÏ
ÏÏ
ÏÏ
ÏÏ
ÏÏ
ÏÏ
ÏÏ
Ï
Ï
Ï
Ï
Complying with
European Union Directives

2–5 Installing the Interface Module
Publication 1795-6.5.19–June 1996
To install the PLC-5 Ethernet Interface Module, you must:
•attach the connector header to the processor
•attach adhesive washers to the processor
•connect the interface module to the processor
•install the combination into the chassis
!ATTENTION: If your power supply is already
installed in the chassis, be sure the chassis power
supply is turned OFF before you begin the installation
procedures. Do not attempt to install the interface with
chassis power ON. Installing the module with chassis
power ON will damage the module.
Attach the Connector Header to the Processor
If you have not already done so, attach a grounding wrist strap to
your wrist. Then follow these steps to attach the connector header to
the processor:
Attach the interface module to
this end of the connector header.
Locate the PLC-5 processor
connector header port. Push the exposed pins into the
holes on the PLC-5 processor.
20596–M
1. 2.
3.
Important: Make sure you carefully align the pins and holes before
you press the connector header into the processor.
If you improperly align them, you will bend the
connector header pins when you press them together.
Do not use excessive force on the connector header
when seating it into the processor.
You do not need to key the connector.
Installing the
Interface Module

2–6 Installing the Interface Module
Publication 1795-6.5.19–June 1996
Connect the Interface Module to the Processor
Lay the processor on a flat surface and follow these steps to connect
the interface module to the processor:
Front of the PLC-5 processor
Front of the interface module
Installed connector
header 20597–M
Align the pins and holesof the
interface module to those on
the connector header.
1.
Press the interface module into
the connector header.
2.
Tighten the screws.
3.
Important: Make sure you carefully align the pins and holes
before you press the interface module into the connector
header. If you improperly align them, you will bend the
connector header pins.