Experimental Physics and
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We've got a new ioc that controls a power supply over RS-232 with StreamDevice. When the control power on the power supply is cycled, the ioc dies with only the message "Killed". (Specifically the ioc dies when the PS is turned back on.) Turning on asyn tracing shows that upon turning the PS back on, some extra data like null characters are read in through StreamDevice. (Perhaps data that was interrupted?) On reading this, the ioc dies. The mismatch exception handling is turned on, but I'm not quite sure what command to put inside the handler to deal with this problem. I've tried several ideas but none seem to work. Using epics 3.14.8.2, streamDevice 2-1, and asyn 4-6. (Also tried with 3.14.7, 2-1, and 4-3) Any ideas on what could be going on that the ioc can't handle? Thanks, Mike Forster Wilson Lab Cornell University -- .
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ANJ, 10 Nov 2011 |
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