
Rockwell Automation Publication 1734-UM001E-EN-P - July 2013
Troubleshoot with the Indicators
155
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.
Indication
Probable Cause
Recommended Action
Indication
Probable Cause
Recommended Action
POINTBus Status
Off
•
No power supplied.
•
Hardware check is in progress.
•
Initialization is in progress.
Apply power.
Solid green
Normal operation present.
None.
Flashing red
1 Hz - Incorrect POINT I/O module installed.
POINT I/O module removed from backplane.
Verify module installation, no modules removed, and correct,
as needed.
Solid red
Critical link failure (BUS_OFF) is present.
Check network cabling, and correct, as needed.
Indicator
Indication
Probable Cause
Recommended Action
System Power
Off
System power not applied.
1. Verify field power is on.
2. Verify backplane power (load current) is not exceeded.
3. Replace 1734-APB adapter.
Green
System power (5V) present
None.
Field Power
Off
Field power not applied.
Apply field power (24V).
Green
Field power (24V) applied.
None.
Summary of Contents for 1734-OB2
Page 4: ...Publication 1734 UM001E EN P July 2013 iv Summary of Changes Notes...
Page 16: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 xxiv Notes...
Page 22: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 6 About the Modules Notes...
Page 116: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 118 POINT I O Module Data Notes...
Page 168: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 176 Default Data Maps Notes...
Page 172: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 180 Mounting Dimensions Notes...