Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers Installation - Manual (Page 20)

20 SmartGuard 600 Controllers
Publication 1752-IN001C-EN-P - January 2009
If your Network Status indicator is off, follow these steps.
1. Cycle the power supply.
2. Check external wiring.
3. Take corrective actions for noise.
4. Contact Rockwell Automation.
If your Network Status indicator is on or flashing red, follow these steps.
1. View the Alphanumeric display for the node address of the error and error
code.
2. Check that node addresses have not been duplicated.
3. Make sure the communication rate is the same for all nodes.
4. Check that cables are not loose, disconnected or too long.
5. Verify that terminating resistors have been installed only at both ends of the
main line.
6. Take corrective action for noise.
7. Make sure target devices are configured, verified, and in normal operating
state.
Lock Configuration (Lock) Status Indicator Descriptions
If the Lock
Configuration (Lock)
status indicator is It means Take this action
Yellow, on A locked valid configuration exists. No action required.
Yellow, flashing An unlocked valid configuration exists. Lock the configuration before operating the
safety system.
Off The configuration is invalid. Reconfigure the controller.