[Dsg-hallb_magnets] FYI: DSG progress on direct PLC to Cryocon communication
Probir Ghoshal
ghoshal at jlab.org
Fri Mar 13 11:24:59 EDT 2020
Tyler,
Could you please suggest the one we need to adopt from your findings as conclusion.
Regards
Probir
________________________________
From: Dsg-hallb_magnets <dsg-hallb_magnets-bounces at jlab.org> on behalf of Tyler Lemon <tlemon at jlab.org>
Sent: Friday, March 13, 2020 11:12 AM
To: dsg-hallb magnets <dsg-hallb_magnets at jlab.org>
Subject: [Dsg-hallb_magnets] FYI: DSG progress on direct PLC to Cryocon communication
Hello,
To keep the mailing list informed, Brian has been looking into Cryo's PLC code distributed by Nick for communicating directly to PLCs with Cryo-con units.
So far, he's been able to set up and test 2 versions of direct communication: the version from Cryo and a version using Allen-Bradley Add-On-Instruction (AOI) for Modbus.
Findings so far are that:
* the Cryo version is more involved to get set up and is slower in communication than the delays set in the routine.
* The AOI is quick to set up, but does a lot of extra things that are not wanted or needed.
Best regards,
Tyler
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