Experimental Physics and
Industrial Control System

Hi Kay,      Arnab is my IPR colleague. So I have seen his system. Actually in IOC his PV is configured for "I/O Intr" Scan. and  periodic scan in archiver. That is why his periodic scan is working like monitor. He can not change PV scan in IOC.   Is it possible to archive value every 1s(periodically) for "I/O Intr" PV? Thanks Vishnu Patel From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Kasemir, Kay via Tech-talk <tech-talk at aps.anl.gov> Sent: 16 February 2023 19:03 To: tech-talk <tech-talk at aps.anl.gov>; Arnab Dasgupta <arnabdasg at ipr.res.in> Subject: Re: Periodic SCAN issue in EPICS Archiver Appliance   I believe the basic handling of sample modes in the archiver appliance is basically the same as with the older channel archiver. See https://controlssoftware.sns.ornl.gov/chanarch/manual.pdf, section 2.3 Sampling Options, specifically 2.4 Time Stamps, 2.5 Sensible Sampling. From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Arnab Dasgupta via Tech-talk <tech-talk at aps.anl.gov> Sent: Thursday, February 16, 2023 7:15 AM To: tech-talk <tech-talk at aps.anl.gov> Subject: [EXTERNAL] Periodic SCAN issue in EPICS Archiver Appliance   Hi, I have been trying to archive PV using archiver appliance with SCAN mode and sampling time of 1s but was unable to archive PV values in sync with the same period of 1s.  I could not see the archived data at 1 second time interval in the "Show Data" option (using archive viewer) and in the CSV file as well. Please refer to the screenshot as attached I am using the default values as in the arhappl.properties file. I have tried with both the latest release and last version of archiver appliance but could not resolve the issue. Is there anything particular has to be configured for periodic archival of data in SCAN mode or I am missing out something? kindly let me know for a possible solution to this. Thanks Arnab

References:

Periodic SCAN issue in EPICS Archiver Appliance Arnab Dasgupta via Tech-talk

Re: Periodic SCAN issue in EPICS Archiver Appliance Kasemir, Kay via Tech-talk

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