The submodule is blocked by the device

Description

Submodule AR in subslot arg of slot arg on device arg is pending.

Consequences

Some I/O signals may not be available.

Possible causes

The controller cannot access the submodule in subslot arg of slot arg on device arg.

Recommended actions

1. Restart the device to reestablish the connection.
2. Consult the equipment supplier for additional information.