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Chapter 5
CGCM-DLR Unit Startup
122
Verify the Network Connection
Follow these steps to verify the network connection.
1. To browse and confirm that the CGCM-DLR unit is on the EtherNet/IP
network, use the RSWho function of RSLinx software.
2. Verify the unit firmware revision is the same or later than indicated on the
firmware revision label.
3. To confirm that the connection status is 'running' and that the
communication logic (MSG instructions) is executing properly, use the
Logix Designer application.
4. Verify that scheduled and unscheduled data communication is updating by
viewing the changing data in the controller tag database.
Statically Test CGCM-DLR System Redundancy Operation
These steps apply only for units that are configured in a redundant pair.
1. Connect a suitable load to the excitation output terminals of the units
through redundancy relays you provide.
2. Enable excitation in FCR mode with an FCR setpoint greater than the loss
of field current setpoint.
3. Verify that only one CGCM-DLR unit is the primary by observing the
status of the Spare1 tag in the Input table, the state of the primary
CGCM-DLR unit redundancy relay output, and the exciter field output
current.
4. Disable excitation on the primary unit by removing the hardware
excitation enable input, or by clearing the software excitation enable tag, or
by removing the network connections, or by removing 24V DC control
power from the primary unit.
5. Verify that the back-up unit has become the primary by observing the
status of its Spare1 tag in the Input table, the state of its redundancy relay
output, and the exciter field output current.
Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
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