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hello,</div>
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steve woods and i had a short discussion about EPICS, in particular, css-boy screens for hall c magnets and for solid.</div>
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steve woods suggested that we have a meeting with steve lassiter, which we'll do, to address all matter with regards to standardization.</div>
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i've attached below brian's response (highlighted in yellow) to steve lassiter's questions addressed to bob miller,which by way of krister and brian, i received.</div>
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i would like to inform everyone that:<br>
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<ol>
<li> dsg (tyler) has worked with steve woods and developed EPICS for the hall c hv system.</li><li>we (pablo, aaron, peter) are developing for the nps caen system, EPICS based controls and monitoring.</li><li>we (aaron) are developing EPICS based system for comcal.</li><li>with regards to hms and shms we have developed several CSS-boy screens ~70 (pablo, mary ann, aaron), there are many more miles to go!</li><li>for the solid magnet we are also developing CSS boy screens (mary ann, pablo, aaron).</li><li>for off site monitoring we (tyler, peter) have developed WEDM for hall d and if i recall right for hall c as well.<br>
</li></ol>
<div>points 4. and 5. are being done with the idea of standardization across the physics division.</div>
<div>however:<br>
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<div>this doesn't imply one has to choose either PLC based HMI or EPICS, one could run both in parallel (which is not my cup of tea)<br>
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<div>EPICS could be used just for monitoring, one could deactivate its controls features.</div>
<div>so there are many many choices. <br>
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<div>one concern steve woods had is that for halls c&a there is no person like, hovannes for hall d, or nathan for hall b, which is indeed a very important issue.</div>
<div><i>i requested patrizia to approve pete bonneau (DSG) to do handle this job and she has approved the request.</i></div>
<div>peter is a super expert in epics with ~25 years of experience in the field.</div>
<div>being a patient man he has been the de facto EPICS/PLC instructor for the young-bloods in DSG.</div>
<div>(DSG has also worked on the PLC programming for the hall c magnets and is working currently on the SoLID magnet.)</div>
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<div>dsg is keen to support halls c&a and it would be a privilege for us to contribute to the program.</div>
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<div>since i do not know who are on the mailing list, some of you might get doubles (hopefully not triples of this message)</div>
<div>my apologies in advance for that.</div>
<div>amrit<br>
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<div><span style="background-color: rgb(255, 255, 0);">From: Brian Eng <beng@jlab.org></span><br>
<span style="background-color: rgb(255, 255, 0);">Sent: Tuesday, April 28, 2020 6:20 PM</span><br>
<span style="background-color: rgb(255, 255, 0);">To: Krister Bruhwel; Bob Miller</span><br>
<span style="background-color: rgb(255, 255, 0);">Cc: Steven Lassiter; Nicholas Sandoval</span><br>
<span style="background-color: rgb(255, 255, 0);">Subject: Re: PLC controls user interface</span><br>
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<span style="background-color: rgb(255, 255, 0);">Hall B is 100% EPICS for their UI interface to PLC, no HMI anywhere.</span><br>
<a href="https://clasweb.jlab.org/wiki/images/d/dc/Hall_B_Solenoid_Power-Up_and_Power-Down_Procedure.pdf" target="_blank" rel="noopener noreferrer"><span style="background-color: rgb(255, 255, 0);">https://clasweb.jlab.org/wiki/images/d/dc/Hall_B_Solenoid_Power-Up_and_Power-Down_Procedure.pdf</span></a><span style="background-color: rgb(255, 255, 0);">
(Torus is basically the same)</span><br>
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<span style="background-color: rgb(255, 255, 0);">Hall D does have some legacy HMI screens, but they're generally not used and mainly for experts.</span><br>
<a href="https://halldweb.jlab.org/hdops/wiki/index.php/Solenoid_Ramping_Shift" target="_blank" rel="noopener noreferrer"><span style="background-color: rgb(255, 255, 0);">https://halldweb.jlab.org/hdops/wiki/index.php/Solenoid_Ramping_Shift</span></a><br>
<br>
<span style="background-color: rgb(255, 255, 0);">Both are using the Ether/IP EPICS driver running on a softIOC for PLC tags <-> EPICS PVs. Most of this is just read-only in EPICS. We try to limit what can be controlled by shifters (there are additional restrictions
that could be put in place [by user or machine] but haven't been deemed necessary).</span><br>
<br>
<span style="background-color: rgb(255, 255, 0);">Anything that an expert accesses more than a few times generally gets moved to EPICS as well. An example of this would be the SOE bits and timestamps for the Hall B magnets when we were getting spurious trips
due to LCW issues. Now this is available on a CSS screen and archived by Mya.</span><br>
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<span style="background-color: rgb(255, 255, 0);">________________________________________</span><br>
<span style="background-color: rgb(255, 255, 0);">From: Krister Bruhwel <bruhwel@jlab.org></span><br>
<span style="background-color: rgb(255, 255, 0);">Sent: Tuesday, April 28, 2020 5:50 PM</span><br>
<span style="background-color: rgb(255, 255, 0);">To: Bob Miller</span><br>
<span style="background-color: rgb(255, 255, 0);">Cc: Steven Lassiter; Brian Eng; Nicholas Sandoval</span><br>
<span style="background-color: rgb(255, 255, 0);">Subject: Re: PLC controls user interface</span><br>
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<span style="background-color: rgb(255, 255, 0);">Hello,</span><br>
<br>
<span style="background-color: rgb(255, 255, 0);">As far as I know, we use EPICS screens for users to interface with PLC's. I have cc'd Brian and Nick as they know how it all works.</span><br>
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<span style="background-color: rgb(255, 255, 0);">Thanks,</span><br>
<span style="background-color: rgb(255, 255, 0);">Krister</span><br>
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<span style="background-color: rgb(255, 255, 0);">________________________________</span><br>
<span style="background-color: rgb(255, 255, 0);">From: Bob Miller <rmiller@jlab.org></span><br>
<span style="background-color: rgb(255, 255, 0);">Sent: Tuesday, April 28, 2020 4:06 PM</span><br>
<span style="background-color: rgb(255, 255, 0);">To: Krister Bruhwel <bruhwel@jlab.org></span><br>
<span style="background-color: rgb(255, 255, 0);">Cc: Steven Lassiter <lassiter@jlab.org></span><br>
<span style="background-color: rgb(255, 255, 0);">Subject: Fwd: PLC controls user interface</span><br>
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<span style="background-color: rgb(255, 255, 0);">Hi Krister,</span><br>
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<span style="background-color: rgb(255, 255, 0);">Can you answer Steve's question below?</span><br>
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<span style="background-color: rgb(255, 255, 0);">Thanks,</span><br>
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<span style="background-color: rgb(255, 255, 0);">Bob</span><br>
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<span style="background-color: rgb(255, 255, 0);">-------- Forwarded Message --------</span><br>
<span style="background-color: rgb(255, 255, 0);">Subject: PLC controls user interface</span><br>
<span style="background-color: rgb(255, 255, 0);">Date: Tue, 28 Apr 2020 14:40:25 -0400</span><br>
<span style="background-color: rgb(255, 255, 0);">From: Steven Lassiter <lassiter@jlab.org><mailto:lassiter@jlab.org></span><br>
<span style="background-color: rgb(255, 255, 0);">To: Bob Miller <rmiller@jlab.org><mailto:rmiller@jlab.org></span><br>
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<span style="background-color: rgb(255, 255, 0);">Hello Bob,</span><br>
<br>
<span style="background-color: rgb(255, 255, 0);"> Hall C uses the Rockwell Software Studio for its Human to machine interface (HMI can also be referred to as GUI - graphic user interface). There is a discussion about using other Epics based GUIs for magnet
controls, rotation and cryo control.</span><br>
<br>
<span style="background-color: rgb(255, 255, 0);">What type of interface does Hall B use with their PLC controls?</span><br>
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<span style="background-color: rgb(255, 255, 0);">Thanks for help on this</span><br>
<span style="background-color: rgb(255, 255, 0);">Steven</span><br>
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<span style="background-color: rgb(255, 255, 0);">_______________________________________________</span><br>
<span style="background-color: rgb(255, 255, 0);">Dsg-internal mailing list</span><br>
<span style="background-color: rgb(255, 255, 0);">Dsg-internal@jlab.org</span><br>
<a href="https://mailman.jlab.org/mailman/listinfo/dsg-internal" target="_blank" rel="noopener noreferrer"><span style="background-color: rgb(255, 255, 0);">https://mailman.jlab.org/mailman/listinfo/dsg-internal</span></a><br>
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