Allen-Bradley 1756-CNBR/E User Manual

Rockwell Automation Publication CNET-IN005A-EN-P - May 2011 27
Install a 1768 ControlNet Communication Module Chapter 2
2. Connect the tap’s straight or right-angle connector to the module’s BNC
connector.
3. Apply power to the module and check the status indicators to determine
whether the power supply and module are operating properly.
Remove the Module
To remove or slide a module, turn off the power and pull out the DIN rail
connectors on the module. After you turn off the power, wait for all of the lights
on the power supply and controller to turn off before you disconnect any
modules.
• When you turn off the power, the controller writes its project to memory.
• If you don’t wait for the lights to turn off, you will lose your project.
If your network supports Connect the tap’s connector
Nonredundant media
(1768-CNx modules)
From trunkline A to channel A on the module.
Redundant media
(1768-CNBR modules)
• From trunkline A to channel A on the 1768-CNBR module.
• From trunkline B to channel B on the 1768-CNBR module.
IMPORTANT
To avoid accidentally reversing the tap connections on 1768-CNBR
installations, before making your connection, check the tap drop cable for
the label indicating the attached segment. Accidental connection
reversals produce incorrect status displays and require troubleshooting.
05
06
6
8
7
07
9
0
4
3
2
1
5
08
09
00
01
02
03
04
NETWORK
ADDRESS
31653- M
05
06
6
8
7
07
9
0
4
3
2
1
5
08
09
00
01
02
03
04
NETWORK
ADDRESS
Network 1
Network 2
Nonredundant Media
Redundant Media
A
A
B
Tap
Tap
Tap
ATTENTION: 1768 modules are not designed for removal and insertion
under power. Removal or insertion of a 1768 module while power is
applied can result in module damage or unintended operation.
IMPORTANT
When you turn the CompactLogix power supply off, make sure you wait
for all status indicators on the power supply and controller to turn off
before disconnecting any part from the system.
If you disconnect the CompactLogix system while the controller is still
writing its program to memory, the program write will not be completed
and you will lose your program.

Allen-Bradley 1756-CNBR/E Specifications

General

Brand	Allen-Bradley
Model	1756-CNBR/E
Category	Controller
Language	English