Experimental Physics and
Industrial Control System

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<== Date ==>		<== Thread ==>

Subject:	either_ip related issue
From:	"Smith, Martin via Tech-talk" <tech-talk at aps.anl.gov>
To:	"tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date:	Mon, 16 Nov 2020 11:47:50 +0000

Has anyone ever seen this problem before?

I have an AB ControlLogix PLC that I'm communicating with and it seems that this tag name

(and at least 2 more) are incorrectly being seen by the Linux soft IOC record as the year 2018.

The record in the IOC is an ai record set to 10 second scan rate because I have also been

noticing record values being incorrect using the INP field with S 10.

The IOC is running EPICS 3.14.12.5 with ether_ip 2-26

When I set the EIP_verbosity(10) I can find the tag name here which correctly gives me the

year 2020.

MultiRequest reply at offset 0x3E: Response #3 (EPICS_PLC_TIME_YEAR):

MR_Response:

USINT service = 0xCC (Response to CIP_ReadData)

USINT reserved = 0x00

USINT status = 0x00 (Ok)

USINT ext. stat. size = 0

Data (1 elements): DINT 2020

But running this command I get 2018 which is also what I see on the IOC.

ether_ip_test -i <ip address> EPICS_PLC_TIME_YEAR

Tag 'EPICS_PLC_TIME_YEAR'

DINT 2018

1 test runs, 0.0276279 seconds -> 27.627945 ms / tag

Also the IOC record reports 2018.

Thanks,

Marty

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Navigate by Thread:: Prev: New releases of ADGenICam and ADAravis Mark Rivers via Tech-talk; Next: NFSv4 and shared data directories Michael Davidsaver via Tech-talk; Index: 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 <2020> 2021 2022 2023 2024

ANJ, 16 Nov 2020