Interpret the led indicators – Rockwell Automation 1790D-XXXX DeviceNet Digital Base Terminal Block CompactBlock LDX I/O Series A User Manual
Page 16

16 DeviceNet Digital Base Terminal Block CompactBlock LDX I/O
Publication
1790-IN006C-EN-P - May 2006
2. Attach the connector to the base block once you have
properly wired the drop line to the connector.
3. Use the locking screws on the connector to fasten it to the
base block, if applicable.
Interpret the LED Indicators
Read this section for information about how to interpret base block
LED indicators. The base block has the following indicators.
• Block status
• Network status
• I/O status
If a module status indicator is flashing red, refer to the cable break
procedures section.
Indication
Probable Cause
Recommended Action
Module Status
Solid Red
Unrecoverable fault in base unit.
Replace base block.
Flashing Red
Fault in expansion unit.
Reconnect or replace, as
needed.
Solid Green
Normal operation.
None.
Off
No power.
Apply power to device.
Network Status
Solid Red
Module node number is a duplicate of an
existing node, or network
communication issues exist.
Change module node number
to an unused address, or verify
network wiring is correct and
communication is stable.
Flashing Red
An I/O connection has timed out.
Cycle power to the module.