Experimental Physics and Industrial Control System
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Can you give a reproducible example?
I tried this record with `softIocPVA` from EPICS base 7.0.6:
record(ai, "number")
{
field(INP, "10")
field(MDEL, "2")
field(PINI, "YES")
}
Both `camonitor number` and `pvmonitor number` start out by displaying the current number, and from then on they reflect changes beyond the MDEL.
So as was the case before EPICS 7, the monitor starts with an initial update, both for Channel Access and PV Access.
-Kay
From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Mezger Anton Christian (PSI) via Tech-talk <tech-talk at aps.anl.gov>
Sent: Friday, October 1, 2021 7:24 AM
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: [EXTERNAL] channel and pv deadband
Hi,
When in epics7 a channel or pv is monitored with a deadband (perhaps also in 3.15), then a value will only
be given when the value exceeds the deadband. This is the expected behaviour. However in case of a display manager, no value will be displayed when monitoring values until the deadband is exceeded. This seems to me a rather special behaviour for existing display
managers that rely on monitoring the values.
Perhaps I am wrong, but perhaps a first value should be send?
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ANJ, 01 Oct 2021 |
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