User manual

Publication CNET-UM001C-EN-P - November 2005
Control I/O 4-17
Validate Connections
Verify that the controller can communicate with the devices that you have just
configured. Do these steps:
1. Determine if communications has been established with the devices.
a. If a is NOT over the I/O Configuration folder, the controller can
communicate with the device. Connections are valid.
b. If a is over the I/O Configuration folder, the controller cannot
communicate with the device. Go to step 2.
2. Identify any faults.
Start looking for faults at the communication module and work down
through the tree. In the example screen below, faults occurred at the
remote 1756-CNB module and the I/O modules added below it.
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