Rockwell Automation 1734-APB Point I/O Profibus Adapter Module - Manual (Page 60)

Publication 1734-UM005B-EN-P - June 2001
6-2 Troubleshooting the PROFIBUS Adapter
Indicator Indication Probable Cause
System Power Off Not active.
Field power is off; or dc-dc converter problem.
Green System power on.
Dc-dc converter active (5V).
Field Power Off Not active.
Field power not applied.
Green Power on, 24V present.
Adapter Status Off No power supplied.
Hardware check in progress.
Initialization in progress.
Green Adapter operating normally
Red Hardware check fault.
PROFIBUS Status Off No power supplied.
Adapter is off-line (no data exchange with the
PROFIBUS master).
Green Adapter is online (data exchange with the PROFIBUS
master).
Flashing Green Adapter is in CLEAR mode and has set the connected
I/O modules into an idle state.
Red No POINT I/O modules installed in the backplane.
Flashing Red Set_Parameter telegram rejected.
Maximum number of user parameter bytes overridden.
PointBus Status Off No power applied to adapter
PointBus initialization in progress.
Green Normal operation.
Flashing Red Incorrect POINT I/O module installed or
POINT I/O module removed from backplane.
Red Critical link failure. Adapter detected error that
prevents its communication on the PointBus.