Rockwell Automation 1771-ACNR15 User Manual

Allen-Bradley

ControlNet Adapter Module

User

(Cat. No. 1771-ACN15 and

-ACNR15)

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.

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Preface



Objectiv

Audience

Vocabulary

What This Manual Contains

Chapter

Read this preface to familiarize yourself with this manual and to learn how to use it properly and efficiently.

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.

In this manual, we refer to:

• the individual ControlNet adapter module as the “adapter” or

the “module.”

• the programmable controller as the “controller” or the

“processor.”

The contents of this manual are as follows:

What This Manual Contains

Title What’s Covered

Introducing the ControlNet Adapter

Modules

Installing Your ControlNet Adapter

Module

3 Addressing Modes for Your I/O Hardware addressing and configuration options

Planning to Use Your ControlNet

Adapter

5 Troubleshooting

Appendix

A Specifications Module specifications

A Practical Example of ControlNet

Concepts

Describes features, capabilities, and hardware components.

Procedures and guidelines for installing the module; including power requirements, location, setting switches, and actual installation.

How the adapter operates on ControlNet and information to assist in configuring your system.

Troubleshooting aids, including status display, health indicators and ControlNet status indicators

An example program and description thereof

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Terminology Used in This Manual

Use this term To describe

complementary module Configuration Manager node node responsible for distributing ControlNet configuration data to all nodes on the

ControlNet network a communication architecture that allows the exchange of messages between connection an opened communication path between two nodes on a ControlNet network

ControlNet status indicators channel A and channel B indicators on your node indicating status on the ControlNet DF1 protocol a peer-to-peer link-layer protocol that combines features of ANSI X3.28-1976

DH+ network (Data Highway Plus) discrete I/O data transfer type of data transfer in which single units of I/O have discrete relationships with values

drop cable a cable that connects a node to the trunk cable (this is an integral part of frame single data transfer on a ControlNet link

half–slot addressing a method of addressing where the processor can address its I/O in 1/2–slot I/O groups high–density i/o module a module that provides 16 input or 16 output terminals I/O Group an addressing unit that can contain up to 16 input terminals and 16 output terminals

I/O map table table that you configure using the programming software to map data from an I/O

link collection of nodes with unique addresses (in the range of 1-99). Segments map-table entry one entry in the I/O map table that you configure using the programming software to

maximum scheduled node node with highest network address that can use scheduled time on a ControlNet link maximum unscheduled node node with highest network address that can use unscheduled time on a ControlNet link network access port (NAP) port that provides a temporary network connection through an RJ-45 connector network a series of nodes connected by some type of communication medium. The

network address a node’s address on the network (this replaces MAC ID and node address). node port of a physical device connecting to the network which requires a network address

network update interval (NUI) single occurrence of the network update time (NUT) network update time (NUT) repetitive time interval in which data can be sent on the ControlNet network non-discrete I/O data transfer type of data transfer in which blocks of data transferred to or from I/O modules use

one–slot addressing A method of addressing where the processor can address its I/O in 1–slot I/O groups. parallel port an input/output port for a device that transmits multiple data and control bits over wires

PC An Allen–Bradley programmable controller, such as the PLC–5 PCCC Programmable Controller Communication Commands, an application-level command

processor a term used to mean an Allen–Bradley programmable controller quad–density i/o module a module that provides 32 input or 32 output terminals

redundant media dual cable system that allows you to receive the best signal over a network

The following list defines common terms used in this manual.

a module that performs an opposite function; an input module complements an output module and vice versa

network Allen-Bradley Company, Inc. products and certified third-party products

link specification subcategories D1 (data transparency) and F1 (two-way simultaneous

transmission with embedded responses) an Allen-Bradley local area network made up of one or more token-passing baseband links

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

1786 taps)

chassis and other devices on the ControlNet network to particular data-table file addresses

connected by repeaters make up a link; links connected by bridges make up a network map data from one I/O chassis (or other device on a ControlNet link) to particular

data-table file addresses

connection paths between any pair of nodes can include repeaters, routers, bridges and gateways

in order to function on the network — a link may contain a maximum of 107 nodes

integer input and output data-table files that you specify; cannot use the processor’s input- and output-image tables (I and O files); scheduled transfers are configured in the ControlNet I/O map table, unscheduled transfers make use of ControlNet I/O (CIO) transfer instructions

connected in parallel

set that Allen-Bradley programmable controllers use to communicate across networks

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Use this term To describe

repeater two-port active physical-layer device that reconstructs and retransmits all traffic it remote I/O link a serial link for carrying I/O data between a PLC or SLC processor/scanner and RS-232-C port a serial port that complies with accepted industry standard for serial binary scheduled transfers deterministic and repeatable transfers that are continuous and asynchronous to the segment trunk-cable sections connected via taps with terminators at each end; serial port a port that transmits/receives data and control bits sequentially over a single

standard–density i/o module a module that provides up to 8 input terminals or 8 output terminals tap a component that connects products to the ControlNet trunk cable. A tap is required

terminator a 75-ohm resistor (mounted in a BNC plug) placed on the ends of segments to prevent trunk cable bus or central part of a cable system.

trunk-cable section length of trunk cable between any two taps two–slot addressing a method of addressing where the processor can address its I/O in 2–slot I/O groups unscheduled transfers non-deterministic data transfers through ladder-initiated communication or

hears on one segment to another segment remote I/O adapters communication circuits in a point-to-point link ladder-logic program scan a segment does not include repeaters transmission line (see RS-232-C port)

for each node and for both sides of each repeater. reflections from occurring at the ends of cables.

programming devices

Conventions

We use these conventions in this manual:

In this manual, we show: Like this:

that there is more information about a topic in another chapter in this manual

that there is more information about the topic in another manual

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Product Compatibility

Product name

Processors PLC–5/20C15, PLC-5/40C15 and PLC-5/80C15 processors 1785-L20C15, 1785-L40C15,

Communication Devices

Universal I/O Chassis

I/O Modules Block transfer modules

Power Supplies System power supply

The 1771-ACN15 and 1771-ACNR15 adapter modules are two of many hardware components that make up a programmable controller system. The table below lists the hardware components and products with which you can use the adapter module.

Compatible Hardware Products

Description Catalog number

L80C15

ControlNet KTCx Communication Card ControlNet Serial/Parallel Communication Interface Flex I/O ControlNet Adapter 1771 ControlNet Adapter Module

4–slot 8–slot 12–slot 16–slot

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

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 Auxiliary Power Supply (24V dc input)

1784-KTC15x 1770-KFC 1794-ACN15, ACNR15 1771-ACN15, -ACNR15

1771–A1, –A1B 1771–A2, –A2B 1771–A3B, A3B1 1771–A4, –A4B

All modules that use the 1771 I/O structure

1771–P1 1771–P2 1771–P3 1771–P4, –P4S, –P4S1 1771–P4R 1771–P5 1771–P6S, –P6S1 1771–PS7 1772–P1 1772–P4 1774–P1 1777–P4

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Related Publications

Summary

For additional information on planning and installing your ControlNet system, see the following publications:

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ControlNet PLC-5 Programmable Controllers (Phase 1.5) User Manual 1785-6.5.22 ControlNet Cable System Component List AG-2.2 ControlNet Cable System Planning and Installation Manual 1786-6.2.1 ControlNet Coax Tap Installation Instructions 1786-2.3 ControlNet Network Access Cable Installation Instructions 1786-2.6 ControlNet Repeater Installation Instructions 1786-2.7 Industrial Automation Wiring and Grounding Guidelines for Noise

Immunity

Publication Number

1770-4.1

This preface gave you information on how to use this manual efficiently. Chapter 1 introduces you to the ControlNet remote I/O adapter module.

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Table of Contents

Introducing the ControlNet Adapter Module

Installing Your ControlNet Adapter Module

Chapter 1

Chapter Objectives Module

Description and Features Hardware Components Chapter Summary

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Chapter 2

Chapter Objectives Compliance

EMC Directive

Low V Determining Power Requirements Determining Setting

Address Switches

Setting the I/O Chassis Switches

Backplane Switch Assembly Setting Installing

Connecting Y Connecting Programming T Powerup Chapter Summary

to European Union Directives

oltage Directive

the Module Location and Keying the I/O Chassis

the Network

the I/O Chassis Power Supply Configuration Plug

the Adapter Module in the Chassis

Sequence

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our Adapter to the ControlNet Network

erminals to the Network via the NAP

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1–1 1–1 1–1 1–4

2–1 2–1 2–1 2–1 2–2 2–2

2–4 2–5 2–5 2–6 2–6 2–7

2–9 2–10 2–10

Addressing Modes for Your I/O

Chapter 3

Chapter Objectives Addressing Y

Using

I/O Using Using

Using

I/O

Using Addressing Summary Chapter Summary

our I/O 2-Slot Addressing Module Combinations

Standard-density I/O (8 point) Modules

High-density (16 point) I/O Modules 1-Slot Addressing Module Combinations 1/2- Slot Addressing

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3–1 3–1 3–3 3–3 3–4 3–6 3–7 3–9

3–9 3–1 3–1

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Table of Contentsii

Planning to Use Your ControlNet Adapter Module

Troubleshooting

Chapter 4

Chapter Objectives Overview Discrete Configuring Discrete I/O Data Transfers Nondiscrete

Configuring Configuring Your ControlNet System Chapter Summary

of Adapter Operation

I/O Data T

I/O Data T Using ControlNet I/O (CIO) Instructions Mapping Directly Into Processor Memory Example: Example: Nondiscrete Output Module Communications

Nondiscrete I/O Data T

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ransfer

Nondiscrete Input Module Communications

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ransfers

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ransfers

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Chapter 5

Chapter Objectives Troubleshooting

OK Indicator and Display Mnemonics ControlNet

Chapter Summary

Status Indicators

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With the Status Indicators and Status Display

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4–1 4–1 4–2 4–2 4–3 4–3 4–4 4–4 4–5 4–6 4–6 4–6

5–1 5–1 5–2 5–3 5–3

Specifications

Appendix A

Specifications

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A–1

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Chapter Objectives

Module Description and Features

Chapter

Introducing the ControlNet Adapter Module

This chapter describes the ControlNet adapter modules’ (cat. no. 1771-ACN15 and -ACNR15):

• features

• hardware components, including

• diagnostic indicators

• communication reset pushbutton

• network access port (NAP)

• ControlNet connectors

• network address switch assemblies

The 1771-ACN15 and -ACNR15 adapters control 1771 remote I/O on the ControlNet network. The ControlNet network is a communication architecture that allows the exchange of messages between Allen-Bradley products and certified third-party products.

Hardware Components

The 1771-ACN15 and -ACNR15 Adapters features include:

• high speed data transfer

• diagnostic messages

• local communication network access through the network access

port (NAP)

• redundant media (1771-ACNR15 only)

The adapter module consists of the following major components:

• ControlNet status indicators

• status display

• communication reset pushbutton

• network access port (NAP)

• ControlNet connectors (one on the 1771-ACN15; two on the

1771-ACNR15)

• module net address switch assemblies (on top of module)

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Introducing the ControlNet Adapter Module

Figure 1.1 ControlNet

Adapter Module

Module Network Address Switches (accessible thru top of module)

NET

ADDRESS

STATUS

OK OK

NET

ADDRESS

STATUS

Status Display and Net Address

OK Indicator

Diagnostic Indicators

Communication Reset Pushbutton

ControlNet Status Indicators Network Access Port (NAP)

ALLEN-BRADLEY

1771-ACN15

ALLEN-BRADLEY

1771-ACNR15

ControlNet Media Port

ControlNet Redundant Media Port (1771-ACNR15 only)

1771-ACN15 1771-ACNR15

Diagnostic Indicators

The OK indicator is located on the front panel of the adapter module (Figure 1.1). It shows both normal operation and error conditions in your remote I/O system.

Publication

In addition, an alphanumeric display (net address/status) provides status code indications when an error occurs during initialization or operation.

A complete description of the diagnostic indicators and status display and how to use them for troubleshooting is explained in chapter 5.

Communication Reset Pushbutton

This pushbutton is active whenever the status display shows RSET or PRL. PRL is active only when the I/O chassis backplane switch is in the PRL position. If the above conditions are met, you can use the reset pushbutton (Figure 1.1) to reset the adapter module and resume communication after a communication error occurs.

Network Access Port (NAP)

The network access port (Figure 1.1) provides a bidirectional electrical interface for programming, maintenance, and I/O

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Introducing the ControlNet Adapter Module

1–3

monitoring devices in both redundant and non-redundant connections. Connecting programming terminals to the network using the NAP is described in Chapter 2.

ControlNet Connectors

Cable connection to the module is through standard BNC connectors on the module frontplate.

Example

Terminator

of a Redundant System

Terminator

trunkline A =

trunkline B =

PLC-5/20C or PLC-5/40C

➊ End device supporting redundant cabling is a 1771-ACNR15.

end device

➊ end device ➊

Refer to the ControlNet Cable System Planning and Installation user manual, pub. no. 1786-6.2.1 for more information.

Terminator

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’s Selection

Introducing the ControlNet Adapter Module

Network Address Switch Assemblies

You must set two switch assemblies to configure your adapter module with its unique network address. You access these switches through the top of the module. Figure 1.2 shows the location of the switches. These switches are read on powerup to establish the network address of the module. Network address switch settings are described in Chapter 2.

Figure 1.2 Assigning

Address Switch Assemblies

the Network Number

One

Ten’s Selection

Chapter Summary

For optimum throughput, assign addresses to your ControlNet nodes in a sequential order starting with 02. Address 01 is reserved for the controlling processor on the network

In this chapter we discussed the functions and hardware components of the ControlNet Adapter Module.

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Chapter Objectives

Chapter

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This chapter describes the procedures for installing your ControlNet adapter module. These include:

• CE compliance

• determining power requirements

• determining the module location and keying the I/O chassis

• setting the network address switches

• setting the I/O chassis switches

• setting the I/O chassis power supply configuration plug

• installing the adapter module in the chassis

• connecting programming terminals to the network via the

network access port (NAP)

• powerup sequence

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.

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Installing Your ControlNet Adapter Module

For specific information required by EN 61131-2, 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

Determining Power Requirements

Determining the Module Location and Keying the I/O Chassis

The ControlNet adapter module requires a backplane current of 1.0A at 5V dc. Remember to add this amount to other current requirements for your I/O chassis.

The ControlNet 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.

Position the keying bands (Figure 2.1) in the backplane connectors to correspond to the key slots on the module. This prevents you from inserting the wrong module in this slot. For the ControlNet adapter module, position the keying bands:

• between 54 and 56 on the upper connector, and

• between 16 and 18 on the lower connector

ATTENTION: Observe the following precautions when inserting or removing keys:

• insert or remove keys with your fingers

• make sure that key placement is correct

Incorrect keying or the use of a tool can result in damage to the backplane connector and possible system faults.

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Installing Your ControlNet Adapter Module

You can change the position of these bands if subsequent system design and rewiring makes insertion of a different type of module necessary.

Figure 2.1 Keying

Band Positions

2–3

Place keying bands between:

• 54 and 56 on the upper connector

• 16 and 18 on the lower connector

I/O chassis

ATTENTION: Insert or remove

keying bands with your fingers.

Upper Connector

Keying Bands

Lower Connector

11022-I

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