Permanently on—Warning alert
Action: Press the Reset button on the Core Unit. If the problem persists, contact an authorized service
The following table lists the error conditions:
Device names display incorrectly
Action: Before swapping or moving devices or Extension Bars across load segments, clear the manually
entered information on the Outlet Device Assignment screen
Devices are not discovered
Be sure you are using the PLC power cables with bright blue connectors.
Secure all cables using the power cord retention brackets. This cable management system ensures
that the connector pins do not bend and that the power cables are securely connected.
Discovered data appears as manual entry data
Symptom: On the Outlet Device Assignment screen, automatically discovered data appears as manual
Action: If the device is still connected to the outlet, power on the device. The data appears as
If the device is no longer connected to the outlet, clear the data manually.
Display Unit LED indicator illuminates or flashes
Symptom: The Display Unit LED indicator that is visible when the rack door is closed is:
Permanently on—Warning alarm
Action: View the Alarms screen
LED flash error code
menu" on page 40) for more information about the active alarm.
DMA Mem to Mem
Serial loop back error
("Outlet Device Assignment
menu" on page