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

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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

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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
B
AA
AA
B
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.
B
A
Example of a Redundant System
trunkline A =
trunkline B =
Terminator
Terminator
SLC 5/02 or later
with 1747-SCNR
end device1

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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
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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.