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Subject: Stupid question of the day
From: Graeme Winter via Tech-talk <tech-talk at aps.anl.gov>
To: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Fri, 30 Jan 2026 19:03:20 +0000
Hello all, happy Friday

I am trying and failing to get a simple EPID running - from the documentation 


It should be as simple as running an IOC with this compiled in (e.g. stdApp from std-R3-6-4)  with a “sensible” database and configuration then all should be good, but I don’t appear to be able to get the right combination of spells - certainly due to my general ignorance of this area

Simplistically I would expect to pass input, output PVs, some demand PV value, a cycle time and KP, KI, KD and it should “just work” when the PID loop is enabled but this has thus far proven to be beyond my reach

Does anyone have simple example st.cmd and db file which I can use for this? My attempts at hacking the ones included in std bundle have been unsuccessful

Many thanks in advance as always, and best wishes Graeme

Replies:
Re: Stupid question of the day Mark Rivers via Tech-talk

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