[Dsg-hallc_controls] Upgrading HMS controls

[Amrit Yegneswaran]

good work guys.


however, can the modern era software techies explain why the secondary runs only on the downgraded version 20.009, while the primary runs on the version 20.058.

are not the primary and secondary indistinguishable!

in other words if one switched the current primary (phy sically/hardwarewise) to be the secondary , and the current secondary to primary (phy sically/hardwarewise) what would happen?

would you have to downgrade the software for the former and upgrade the software for the latter?

if yes, why not run both primary and secondary on 20.009?


Help, I'm steppin' into the twilight zone...

________________________________
From: Tyler Lemon
Sent: Monday, January 14, 2019 4:50 PM
To: Amrit Yegneswaran; dsg-hallc controls
Cc: Patrizia Rossi
Subject: Re: Upgrading HMS controls


Hello Steven,


To summarize what we talked about this afternoon, finished today, and the plan for tomorrow:


Today Amanda, Brian, and I updated the firmware on the HMS primary and redundant PLC from version 16.057 to version 20.058 and installed the new Ethernet (1756-EN2T), ControlNet (1756-CN2), and Redundancy (1756-RM2) modules received last summer in both the primary and secondary controller chassis.


To get the new redundancy modules working, we had to downgrade the firmware they came with to version 20.009. We were then able to get the HMS PLC program running and the redundancy modules synchronized. We saved the .ACD program file as "HMS_Controls_V21D.ACD" in M:\dsg-hallc_controls.


Right now, even though the system is up and running, there is a red LED blinking on the new redundancy modules indicating that only one fiber cable is connected. Since the PLC system is running fine, it does not seem like the second fiber cable is required to run. You mentioned that you would look into submitting a PR in for a second fiber cable to be able to clear the LED indicator on the modules.


Tomorrow, we will meet at 10:30AM in the counting house to test that the PLC system switches to the redundant chassis if the primary is disabled.


Best regards,

Tyler


________________________________
From: Dsg-hallc_controls <dsg-hallc_controls-bounces at jlab.org> on behalf of Amrit Yegneswaran <yeg at jlab.org>
Sent: Wednesday, January 9, 2019 10:53:23 AM
To: dsg-hallc controls
Cc: Patrizia Rossi
Subject: Re: [Dsg-hallc_controls] Upgrading HMS controls


hi steve,

for the upgrade on monday 01/14/2018 at 13:30,  amanda, tyler, and brian will be present.

if the schedule changes, please post the new schedule, as you did this one, to this mailing list.

sincerely

amrit



________________________________
From: Dsg-hallc_controls <dsg-hallc_controls-bounces at jlab.org> on behalf of Steven Lassiter <lassiter at jlab.org>
Sent: Wednesday, January 9, 2019 9:23 AM
To: dsg-hallc controls
Subject: [Dsg-hallc_controls] Upgrading HMS controls


Hi,



Lets try to upgrade the software of the HMS PLC on Monday, weather permitting.

Say around 1:30pm meet in Hall C counting house?


Thanks

Steven

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