FocusMax run-time error 91

[Tom Krajci]

See attached jpeg. I have been getting this error over and over. Sometimes I can restart the system to work properly, but not tonight...four times in a row failure.

And this is the error I get in the plan-specific log for ACP:

01:44:53 Start slew to AY_Psc...
01:44:54 (wait for slew to complete)
01:44:55 (slew complete)
01:44:55 Target is now centered.
01:44:55 (long exp, no orbital tracking, trying to autoguide)
01:44:55 Switching from C to V filter for imaging
01:44:55 Focus change of 1 steps required
01:45:13 **Script Error (Tracking has been stopped)**
01:45:14 Source: FocusMax
01:45:15 Message: Application-defined or object-defined error at line 1236 column 5.
ACP console log closed 17-Feb-2011 01:45:22 UTC


Sometimes I get this error in the high-level log:

16-Feb-2011 01:52:04.3: Plan L1022_IRS has Monitor Mode. Time to resubmit it.
16-Feb-2011 01:52:04.3: Plan MIS_V1294 has Monitor Mode. Time to resubmit it.
16-Feb-2011 01:52:04.3: Plan V1647_ORI has Monitor Mode. Time to resubmit it.
16-Feb-2011 01:52:04.4: ++ Observatory Startup ++
16-Feb-2011 01:52:04.4: Startup attempted, but no StartupObs script found
16-Feb-2011 01:52:04.4: ++ Auto Focus ++
16-Feb-2011 01:52:04.4: Doing initial autofocus.
16-Feb-2011 01:52:04.4: Start special ACP AutoFocus script for scheduler
16-Feb-2011 01:55:40.2: Next periodic autofocus at 16-Feb-2011 15:55:40 UTC
16-Feb-2011 01:55:41.2: Dispatcher cycle time: 1.078125 sec.
16-Feb-2011 01:55:41.2: Acquire data for Observation MIS_V1294...
16-Feb-2011 01:55:41.2: (16 sets)
16-Feb-2011 01:55:41.3: Send Observation MIS_V1294 to ACP Sequencer
16-Feb-2011 01:55:41.3: WARNING: Failed to start ACP script (0)
16-Feb-2011 01:55:41.3: Observatory is currently in use
16-Feb-2011 01:58:07.5: Data acquisition failed for Observation MIS_V1294.
16-Feb-2011 01:58:07.5: (ACP reported Imager system failure. See run log.)
16-Feb-2011 01:58:08.0: Dispatcher cycle time: 0.296875 sec.
16-Feb-2011 01:58:08.0: Acquire data for Observation IRAS00470+6429...
16-Feb-2011 01:58:08.0: Send Observation IRAS00470+6429 to ACP Sequencer
16-Feb-2011 01:58:08.0: WARNING: Failed to start ACP script (0)
16-Feb-2011 01:58:08.0: Observatory is currently in use
16-Feb-2011 01:58:10.4: Dispatcher stopped at 16-Feb-2011 01:58:10 UTC
16-Feb-2011 01:58:10.4: **DISPATCHER INTERRUPT LEVEL 1 RECEIVED**
16-Feb-2011 01:58:35.7: REQUEST ABORTED: The dispatcher was interrupted and aborted this ACP run
16-Feb-2011 01:58:35.7: Data acquisition failed for Observation IRAS00470+6429.


FocusMax is 3.5.94. Acquire star works just fine under control of ACP (or manually)...but when it comes to the first filter change for an imaging plan (and use of a filter offset value)....things hang up and when I click on the error message box...FocusMax crashes and disappears.

What am I doing wrong?

Thanks in advance