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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Generating a 'binary output pulse' by processing an ao record? |
| From: | Nicklas <[email protected]> |
| To: | "[email protected]" <[email protected]> |
| Date: | Thu, 19 Jun 2014 00:07:59 +0200 |
|
Dear all,
my name is Nicklas and I am a student at Uppsala University, Sweden, who is currently working for the research facility FREIA, which is designed for research and development of accelerators and instrumentation for accelerator based research. I am new to epics so I would really appreciate some help. Now to my question; as the subject line suggests, I need help/tips on how to generate a binary output pulse by processing an analog output record, i.e. I want the bo value to be 1 for 0.5 seconds (and then return to 0) each time the analog output is processed. My idea of the database setup was the following: record (ao, "XX") { ... field(FLNK, "YY") } record (bo, "YY") { ... field (DOL, "1") field (OMSL, "closed_loop") field (HIGH, "0.5") } This works fine the first time "XX" is processed (using dbpf), but the next time "XX" is processed (using dbpf), it doesn't work. Any tips/thoughts on this would be highly appreciated. Best regards, Nicklas Bjärnhall Prytz, Engineering Physics Student at FREIA Uppsala University Sweden |