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Honeywell Experion PKS User Manual Page 257

Profibus gateway module.
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Loss of power
The power supply has failed or the main power source has been shutdown or is experiencing a brownout or
blackout condition.
Diagnostic Check •
The 4-character display on the PGM and LEDs on the module and the IOTA are off.
In the Monitoring view, the PGM icon turns red.
Cause 1
Main power source has been disconnected or shutdown either manually or temporarily by brownout or
blackout condition.
Solution
Re-connect the main power source or turn it On or wait for temporary brownout or blackout condition
to pass.
Cause 2
The 24 Vdc power supply failed or power cable has been disconnected or failed.
Solution
Replace the 24 Vdc power supply or re-connect/replace the power cable.
Cause 3
Power fuse opens on IOTA.
Solution
Replace power fuse.
Power-On Self Test (POST) does not complete
A fault is detected during the Power-On Self Test (POST).
Diagnostic
A self test diagnostic code remains on display and the POST does not continue.
Check
Possible indications: Display indicates test pattern, or Tnnn (nnn = a test number which is executed
during POST). Note: If display indicates 'T499', POST has completed.
Cause
The PGM POST has detected a failure that does not allow startup to continue or complete.
Solution
Short the reset pads on the IOTA to restart the PGM. If error persists, replace the module.
PGM display indicates -bp- or -ts-
Diagnostic Check
Cause
Solution
Diagnostic
Display indicates -SF- alternating with OK/BKUP
Check
Cause
BootP service is available, but time source is not available. Time Server may not be configured or
server may not be running the latest release time service.
Solution
Verify that the system time source is configured. Check that the Server Windows Time Service
(w32time) is running on the server.
One or both FTE LEDs are RED
Diagnostic Check One or both FTE LEDs on the PGM faceplate are RED.
13 PROFIBUS GATEWAY MODULE (PGM) TROUBLESHOOTING
Display indicates -bp-
BootP service is not available.
Check FTE cable connections to FTE A and FTE B
connectors on the module IOTA.
Verify FTE network connections between the module
IOTA and the associated server.
Verify that the BootP service is running on the associated
server. Restart BootP service if not running.
In Control Builder, check System Preferences for valid
network IP address settings. Verify correct configuration
of System Time server.
257

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