Allen-Bradley ControlNet 1747-ACN15 User manual

Publication 1747-IN017C-EN-P - May 2001

Installation Instructions

ControlNet Adapter Module

1747-ACN15, 1747-ACNR15

What This Document Describes

For information on: Refer to page:

Additional Documentation 2

Module Description and Features 4

Hardware Components 4

Determining Power Requirements 6

Installing the Adapter Module 7

Connecting Programming Terminals 12

Powerup Sequence 13

Troubleshooting 14

ControlNet Status Indicators 16

Specifications 19

Allen-Bradley Automation

2ControlNet Adapter Module

Publication 1747-IN017C-EN-P - May 2001

User Manual and Other Related Documentation

For detailed information on how to use the ControlNet Adapter Module, refer to the

ControlNet Adapter Module User Manual, publication 1747-UM003A-EN-P.

For detailed information on planning and installing your ControlNet system, refer to

the following publications:

If you would like any of this documentation, you can:

•download a free electronic version from the internet:

www.theautomationbookstore.com

•purchase a printed copy by:

–contacting your local distributor or Rockwell Automation representative

–visiting www.theautomationbookstore.com and placing your order

Publication Publication Number

ControlNet Adapter User Manual 1747-UM003A-EN-P

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-IN007A-EN-P

ControlNet Network Access Cable Installation Instructions 1786-2.6

ControlNet Repeater Installation Instructions 1786-5.13

Industrial Automation Wiring and Grounding Guidelines 1770-4.1

ControlNet Adapter Module 3

Publication 1747-IN017C-EN-P - May 2001

European Communities (EC) Directive Compliance

If this product has the CE mark it is approved for installation within the European

Union and EEA regions. It has been designed and tested to meet the following

directives.

EMC Directive

This product is tested to meet the Council Directive 89/336/EC Electromagnetic

Compatibility (EMC) by applying the following standards, in whole or in part,

documented in a technical construction file:

•EN 50081-2 EMC — Generic Emission Standard, Part 2 — Industrial

Environment

•EN 50082-2 EMC — Generic Immunity Standard, Part 2 — Industrial

Environment

This product is intended for use in an industrial environment.

Low Voltage Directive

This product is tested to meet Council Directive 73/23/EEC Low Voltage, by

applying the safety requirements of EN 61131-2 Programmable Controllers, Part 2 -

Equipment Requirements and Tests. For specific information required by EN

61131-2, see the appropriate sections in this publication, as well as the

Allen-Bradley publication Industrial Automation Wiring and Grounding Guidelines,

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.

Allen-Bradley Automation

4ControlNet Adapter Module

Publication 1747-IN017C-EN-P - May 2001

Module Description and Features

The 1747-ACN15 and -ACNR15 adapters control 1746 remote I/O on the ControlNet

network. The ControlNet network is a communication architecture that allows the

exchange of messages between ControlNet products compliant with the CI

specification.

The adapters support multiple scheduled connections to individual modules or rack

scheduled connections to a group of modules. Up to 64 scheduled connections per

adapter are possible with a maximum of 251 input words and/or 249 output words

supported per scheduled connection. An adapter can control up to 30 slots of 1746

I/O (3 chassis max.).

The 1747-ACN15 and -ACNR15 adapters features include:

•high-speed data transfer

•diagnostic messages

•local communication network access through the network access port (NAP)

•redundant media (1747-ACNR15 only)

•unscheduled messaging

•multicast outputs

•PLC-5 ControlNet hot backup

Hardware Components

The adapter module consists of the following major components, as shown in the

following figure:

•ControlNet status and health indicators

•status display and network address

•network access port (NAP)

•ControlNet connectors (one on 1747-ACN15; two on 1747-ACNR15)

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

ControlNet Adapter Module 5

Publication 1747-IN017C-EN-P - May 2001

Diagnostic Indicators

Health indicators are located on the front panel of the adapter module. They

indicate both normal operation and error conditions in your remote I/O system.

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 on page 14.

Network Access Port (NAP)

The network access port provides a bidirectional electrical interface for

programming, maintenance, and I/O monitoring devices in both redundant and

non-redundant connections. How to connect programming terminals to the

network using the NAP is described on page 12.

ADDRESS/STATUS ADDRESS/STATUS

OK OK

Module Network Address Switches

(accessible through top of module)

Health Indicators

ControlNet Status Indicators

Diagnostic Indicators

Network Access Port (NAP)

1747-ACNR15

ControlNet Media Port (A)

ControlNet Redundant Media Port (B) (1747-ACNR15 only)

1747-ACN15

Status Display and Net

Address

Allen-Bradley Automation

6ControlNet Adapter Module

Publication 1747-IN017C-EN-P - May 2001

ControlNet Connectors

Cable connection to the module is through standard BNC connectors on the front

of the module, as shown below.

1. End device supporting redundant cabling is a 1747-ACNR15.

Refer to the ControlNet Cable System Planning and Installation User Manual,

Publication 1786-6.2.1 for more information.

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.

The following figure shows the location of the switches. These switches are read on

power-up to establish the network address of the module. Network address switch

settings are described on page 7.

Determining Power Requirements

The ControlNet adapter module requires a maximum backplane current of 900mA

at 5VDC. Remember to add this amount to other current requirements for your I/O

chassis.

Example of a Redundant System

trunkline A =

trunkline B =

Terminator

SLC 5/02 or later

with 1747-SCNR

end device1

ControlNet Adapter Module 7

Publication 1747-IN017C-EN-P - May 2001

Setting the Network Address Switches

The switches on the top of the adapter module determine the network address of

the adapter. The two switches are:

•the ten’s switch

•the one’s switch

The combination of these switches allows selection of network addresses from 01

to 99.

Installing the Adapter Module in the Chassis

After you set the appropriate switch assemblies for your adapter module, follow

these procedures for installation.

Refer to the Industrial Controller Wiring and Grounding Guidelines publication

1770-4.1 for proper grounding and wiring methods to use when installing your

module.

TIP

00 is an invalid number.

Ten’s Selection One’s

Selection

Allen-Bradley Automation

8ControlNet Adapter Module

Publication 1747-IN017C-EN-P - May 2001

1. Remove power from the I/O chassis before inserting (or removing) the

module.

2. Align the circuit board with the chassis card guide in the left slot.

3. Slide the module into the chassis until the top and bottom latches are

latched.

4. Press firmly and evenly to seat the module in its backplane connectors. To

remove the module, press the releases at the top and bottom of the module

and pull it out.

WARNING

If you insert or remove the ControlNet Adapter with power

applied to this module or any device on the network, 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.

ATTENTION

Do not force the module into the backplane connector. If you

cannot seat the module with firm pressure, check the

alignment. Forcing the module can damage the backplane

connector or the module.

Latch

Card Guide

Power

Supply

ControlNet Adapter Module 9

Publication 1747-IN017C-EN-P - May 2001

Connecting Your Adapter to the ControlNet Network

Connect your 1747-ACN15 or -ACNR15 adapter module to a ControlNet network via

taps. as shown below:

1. Remove the tap’s dust cap (located on the straight or right angle connector).

IMPORTANT

Taps contain passive electronics and must be purchased from

Rockwell Automation for the network to function properly.

If your node supports: Connect the tap’s straight or right angle connector:

Non-redundant media to the channel A connector on the 1747-ACN15 or 1747-ACNR15

(channel B on the 1747-ACNR15 is not used)(1)

(1) While both channels are active, we recommend using channel A for non-redundant media.

Redundant media •from trunkline A to channel A on the 1747-ACNR15

•from trunkline B to channel B on the 1747-ACNR15

ATTENTION

Do not allow any metal portions of the tap to contact any

conductive material. If you disconnect the tap from the

adapter, place the dust cap back on the straight or right angle

connector to prevent the connector from accidentally

contacting a metallic grounded surface.

Straight T-tap Straight Y-tap Right-angle T-tap Right-angle Y-tap

1766-TPS 1786-TPYS 1786-TPR 1786-TPYR

segment 1

Tap

dust cap

Allen-Bradley Automation

10 ControlNet Adapter Module

Publication 1747-IN017C-EN-P - May 2001

2. Remove and discard the dust caps from the adapter BNC jacks.

3. Remove and discard the dust caps from the adapter BNC jacks.

4. Connect this tap’s straight or right angle connector to the BNC connector on

the adapter.

ATTENTION

Do not allow any metal portions of the tap to contact any

conductive material. If you disconnect the tap from the

adapter, place the dust cap back on the straight or right angle

connector to prevent the connector from accidentally

contacting a metallic grounded surface.

segment 1

Tap

dust cap

segment 1

Tap

dust cap

segment 1

tap

IMPORTANT To prevent inadvertent

reversal of the top

connections (resulting in

incorrect LED displays and

troubleshooting), check the

tap drop cable for a label

indicating the attached

segment before making your

connection.

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