Publication 1734-UM001D-EN-P - April 2008
160 Troubleshoot with the Indicators
1734-APB PROFIBUS Adapter
Adapter
Status
PROFIBUS
Status
PointBus
Status
1734-APB
Field
Power
System
Power
System Power
Field Power
Adapter Status
PROFIBUS Status
POINTBus Status
1734-2
Indication Probable Cause Recommended Action
Adapter Status
Off • No power supplied.
• Hardware check is in progress.
• Initialization is in progress.
1. Apply power.
2. Wait for power self-test to complete.
Green Operation is normal. None.
Red Hardware check fault present. Replace device.
Indication Probable Cause Recommended Action
PROFIBUS Status
Off No power supplied.
Bus is offline.
Apply power, verify network cabling, and correct,
as needed.
Solid green Bus is online (data exchange). None.
Flashing green Adapter received a CLEAR command from the master. None.
Solid red Error in PROFIBUS initialization is present.
No modules installed in the backplane.
Verify configuration, proper installation of
modules, and correct, as needed.
Flashing red 1 Hz - Check_Configuration telegram rejected.
Max number of POINT I/O modules in master configuration
overridden.
2 Hz - SetPrm telegram rejected.
The first byte in user parameter data does not equal zero.
Max number of user parameter bytes overridden.
Check configuration.
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