Allen-Bradley ControlNet 1747-ACN15 User manual

Publication 1747-5.41
ControlNet Adapter Module
1747-ACN15, 1747-ACNR15
Installation Instructions
Inside...
For More Information .................................................................. 2
Module Description and Features............................................... 4
Hardware Components............................................................... 4
Determining Power Requirements.............................................. 6
Determining Power Requirements.............................................. 6
Installing the Adapter Module in the Chassis.............................. 7
Connecting Programming Terminals
to the Network via the NAP........................................................ 11
Powerup Sequence................................................................... 12
Troubleshooting With the Status Indicators and status Display 13
ControlNet Status Indicators..................................................... 17
Specifications............................................................................ 18
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For More Information
For detailed information on planning and installing your ControlNet system, see
the following publications:
If you would like a manual, you can:
• download a free electronic version from the internet:
www.theautomationbookstore.com
• purchase a printed manual by:
– contacting your local distributor or Rockwell Automation representative
– visiting www.theautomationbookstore.com and placing your order
– calling 1.800.9NEWLIT(800.963.9548) (USA/Canada)
or 001.330.725.1574 (Outside USA/Canada)
Publication Publication Number
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 1770-4.1
ControlNet Adapter User Manual 1747-6.24

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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 50081-2
• 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 following Allen-Bradley publications:
•Industrial Automation Wiring and Grounding Guidelines For Noise
Immunity, publication 1770-4.1
•Automation Systems Catalog, publication B111
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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.
1747-ACN15 and 1747-ACNR15 adapters support multiple connections to
individual modules or rack connections to a group of modules. Up to 64
connections per adapter are possible with 255 words (max.) supported per
connection. Multiple connections per module are allowed for modules with large
M0 and M1 files. 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)
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)

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Figure 1 ControlNet Adapter Module
Diagnostic Indicators
Health indicators are located on the front panel of the adapter module (Figure 1).
They show both normal operation and error conditions in your remote I/O
system.
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 on page 13.
Network Access Port (NAP)
The network access port (Figure 1) provides a bidirectional electrical interface
for programming, maintenance, and I/O monitoring devices in both redundant
and non-redundant connections. Connecting programming terminals to the
network using the NAP is described on page 11.
ADDRESS/STATUS ADDRESS/STATUS
B
AA
AA
B
OK OK
Module Network Address Switches
(accessible thru 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
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ControlNet Connectors
Cable connection to the module is through standard BNC connectors on the
module frontplate, as shown below.
Figure 2 Cable Connections.
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. Figure 3 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 5V dc. Remember to add this amount to other current requirements for
your I/O chassis.
B
A
Example of a Redundant System
trunkline A =
trunkline B =
Terminator
Terminator
PLC-5/20C or
PLC-5/04C end device
1

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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.
Figure 3 Setting the Network Address
Installing the Adapter Module in the Chassis
Once you’ve 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.
Note: 00 is an invalid number.
!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.
Ten’s
Selection One’s
Selection
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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.
Figure 4 Module Installation
3. Slide the module into the chassis until the top and bottom latches are
latched. To remove the module, press the releases at the top and bottom of
the module and slide it out.
4. Press firmly and evenly to seat the module in its backplane connectors.
Connecting Your Adapter to the ControlNet Network
You connect your 1747-ACN15 or -ACNR15 adapter module to a ControlNet
network via taps. These taps are available:
!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

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Figure 5 Available Taps
1. Remove the tap’s dust cap (located on the straight or right angle connector).
Figure 6 Connecting to a Tap
Important:
Taps contain passive electronics and must be purchased from
Allen-Bradley 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, Allen-Bradley recommends using channel A for non-redundant
media.
Redundant media •fromtrunkline A to channel A on the 1747-ACNR15
•fromtrunkline 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
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2. Remove and discard the dust caps from the adapter BNC jacks.
3. Connect this tap’s straight or right angle connector to the BNC connector on
the adapter.
Figure 7 Connecting to a Module
4. For redundant adapters (1747-ACNR15), remove (and save) the dust cap
located on the straight or right angle connector of the designated tap on the
second segment (segment 2).
Figure 8 Connecting a Redundant Adapter
5. Connect this tap’s straight or right angle connector to the BNC connector on
the adapter.
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.
segment 2
tap
dust cap