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Hi Brian,</p>
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If we could zoom in close enough and had the resolution during the period in question (<span style="font-size: 12pt;">14:48:24 to </span><span style="font-size: 12pt;">14:49:34) the DP value was bouncing back and forth between the 55 PSI threshold. Also we
have a 3 second timer on this interlock. Since the transducers reside on the Solenoid it would have the best update time, the solenoid performs the DP subtraction only in the interlock routine, then the produced routine has to apply it to the PV array, finally Torus
has to consume the updated PV then process it in it's interlock routine. We probably hit it right on the nose for the Torus and then the Solenoid was allowed to flounder back n forth before finally going. Sol Valve PID's, Sol heater PIDs, Torus PID's, etc all contribute
to the varying update time.</span></p>
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<span style="font-size: 12pt;">-Nick</span></p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Dsg-hallb_magnets <dsg-hallb_magnets-bounces@jlab.org> on behalf of Amrit Yegneswaran <yeg@jlab.org><br>
<b>Sent:</b> Thursday, February 21, 2019 7:12 PM<br>
<b>To:</b> Brian Eng; dsg-hallb magnets<br>
<b>Subject:</b> Re: [Dsg-hallb_magnets] 2/21 Controlled Ramp</font>
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the 70 s could be due to transit time/ trip initiation latency (solenoid takes more time to ack. flipped bit)... etc.</div>
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i guess relief valve installation is in the event horizon upcoming down time.</div>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Dsg-hallb_magnets <dsg-hallb_magnets-bounces@jlab.org> on behalf of Brian Eng <beng@jlab.org><br>
<b>Sent:</b> Thursday, February 21, 2019 4:49 PM<br>
<b>To:</b> dsg-hallb magnets<br>
<b>Subject:</b> [Dsg-hallb_magnets] 2/21 Controlled Ramp</font>
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<div style="word-wrap:break-word; line-break:after-white-space">Regarding the ramp today: <a href="https://logbooks.jlab.org/entry/3657129" class="OWAAutoLink" id="LPlnk530976" previewremoved="true">https://logbooks.jlab.org/entry/3657129</a>
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<div class="">Any ideas on why the Torus went at 14:48:24 vs the Solenoid at 14:49:34 since they should be using the same tags/values?</div>
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<div class="">Also, if the flow was actually bad (according to the MPS) shouldn't we have seen the flow bit on the MPS trip?</div>
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<div class=""><img id="x_x_EE48759B-CE32-429E-8973-8F520ABDC866" class="" style="max-width: 100%; height: auto; user-select: none;" tabindex="0" data-outlook-trace="F:1|T:1" src="cid:04CBC1E1-F5DA-4197-89E1-68627AF31039@jlab.org"><img id="x_x_E8AE2F24-D05F-4484-9844-EED32F95AD32" class="" style="max-width: 100%; height: auto; user-select: none;" tabindex="0" data-outlook-trace="F:1|T:1" src="cid:5C9F5D4C-894F-4BC5-AE36-A68A6F8580C1@jlab.org"></div>
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