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Hi Brian,</div>
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I completely agree with your plan.</div>
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Valery</div>
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<b>From:</b> Brian Eng <beng@jlab.org><br>
<b>Sent:</b> Tuesday, July 15, 2025 12:38<br>
<b>To:</b> Valery Kubarovsky <vpk@jlab.org>; Tyler Lemon <tlemon@jlab.org>; Christopher Dilks <dilks@jlab.org><br>
<b>Cc:</b> Marco.Mirazita@lnf.infn.it <Marco.Mirazita@lnf.infn.it>; Daniel Carman <carman@jlab.org>; Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> Re: [dsg-hallb_rich] [EXTERNAL] Re: RICH S4 CRIO heartbeat stopped</div>
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The plan is still that on Thursday during the scheduled maintenance I'll try restarting software/hardware to see if that resolves the issue.</div>
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If not we have the spare that Tyler already prepared.</div>
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This is why we're not going to do anything during the short access today as there still are some signals that are updating and we don't want to lose everything completely.</div>
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<b>From:</b> Valery Kubarovsky <vpk@jlab.org><br>
<b>Sent:</b> Tuesday, July 15, 2025 12:35 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org>; Christopher Dilks <dilks@jlab.org>; Brian Eng <beng@jlab.org><br>
<b>Cc:</b> Marco.Mirazita@lnf.infn.it <Marco.Mirazita@lnf.infn.it>; Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> Re: [dsg-hallb_rich] [EXTERNAL] Re: RICH S4 CRIO heartbeat stopped</div>
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Ok, then. Let us try to fix it.</div>
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<b>From:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Tuesday, July 15, 2025 12:33<br>
<b>To:</b> Valery Kubarovsky <vpk@jlab.org>; Christopher Dilks <dilks@jlab.org>; Brian Eng <beng@jlab.org><br>
<b>Cc:</b> Marco.Mirazita@lnf.infn.it <Marco.Mirazita@lnf.infn.it>; Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> Re: [dsg-hallb_rich] [EXTERNAL] Re: RICH S4 CRIO heartbeat stopped</div>
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Hi Valery,</div>
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June 17 was the date the S4 N2 volume cRIO was swapped out, so it may be an EPICS communication problem with that cRIO. </div>
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On Thursday, the EPICS client reboot and/or entire system reboot Brian mentioned may fix the problem. </div>
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-Tyler</div>
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<b>From:</b> Valery Kubarovsky <vpk@jlab.org><br>
<b>Sent:</b> Tuesday, July 15, 2025 12:27:15 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org>; Christopher Dilks <dilks@jlab.org>; Brian Eng <beng@jlab.org><br>
<b>Cc:</b> Marco.Mirazita@lnf.infn.it <Marco.Mirazita@lnf.infn.it>; Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> Re: [dsg-hallb_rich] [EXTERNAL] Re: RICH S4 CRIO heartbeat stopped</div>
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Hello Tyler and Brian,</div>
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Take a look to the logentry</div>
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<a href="https://logbooks.jlab.org/book/RICH" id="OWA1993da9a-623f-2e16-5f77-531116e20793" class="x_x_x_x_OWAAutoLink" data-auth="NotApplicable">https://logbooks.jlab.org/book/RICH</a></div>
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It looks like something happened on June 17 at 7:30AM.</div>
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After this point the air pressure and air flow1 behave differently.</div>
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I am not sure that it is connected with EPICS.</div>
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We will have the possibility to take a look at this issue this Thursday.</div>
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Thank you,</div>
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Valery</div>
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<b>From:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Monday, July 14, 2025 09:48<br>
<b>To:</b> Christopher Dilks <dilks@jlab.org>; Valery Kubarovsky <vpk@jlab.org>; Tyler Lemon <tlemon@jlab.org><br>
<b>Cc:</b> Marco.Mirazita@lnf.infn.it <Marco.Mirazita@lnf.infn.it>; Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> Re: [dsg-hallb_rich] [EXTERNAL] Re: RICH S4 CRIO heartbeat stopped</div>
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Hi Chris,</div>
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The raw voltage readback for those channels are updating.</div>
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Attached are two screenshots of the raw values taken about one minute apart.</div>
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AI0 is N2 flow</div>
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AI2 is Airflow 1</div>
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AI3 is Airflow 2</div>
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CH0 is air pressure</div>
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You can see that the values for the channels are different in the two screenshots.</div>
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So the cRIO is correctly monitoring the airflows, N2 flows, and air pressure. It might be something with an EPICS deadband making it look like those PVs aren't updating.</div>
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-Tyler</div>
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<b>From:</b> dsg-hallb_rich <dsg-hallb_rich-bounces@jlab.org> on behalf of Tyler Lemon via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
<b>Sent:</b> Monday, July 14, 2025 9:06 AM<br>
<b>To:</b> Christopher Dilks <dilks@jlab.org>; Valery Kubarovsky <vpk@jlab.org><br>
<b>Cc:</b> Marco.Mirazita@lnf.infn.it <Marco.Mirazita@lnf.infn.it>; Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> Re: [dsg-hallb_rich] [EXTERNAL] Re: RICH S4 CRIO heartbeat stopped</div>
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Hi Chris,</div>
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I‘m not sure if I will be able to make it around noon to go down to the hall.</div>
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I’m currently at the mechanic for my car and probably will be for most of the morning. </div>
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I can take a look remotely, though. </div>
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-Tyler</div>
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<b>From:</b> Christopher Dilks <dilks@jlab.org><br>
<b>Sent:</b> Monday, July 14, 2025 8:32:29 AM<br>
<b>To:</b> Valery Kubarovsky <vpk@jlab.org>; Tyler Lemon <tlemon@jlab.org><br>
<b>Cc:</b> Brian Eng <beng@jlab.org>; Marco.Mirazita@lnf.infn.it <Marco.Mirazita@lnf.infn.it>; Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> Re: [EXTERNAL] Re: [dsg-hallb_rich] RICH S4 CRIO heartbeat stopped</div>
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Dear Tyler,</div>
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There will be a 20-30 minute access opportunity around noon today (for ECAL work). I'm not sure if that's enough time to take a look at the cRIO, but it is an access opportunity.</div>
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Also, I noticed that some of the S4 PVs, namely airflow, air pressure, and N2 flow, look like they are frozen; the heartbeat is beating though.</div>
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Cheers,</div>
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Chris</div>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Christopher Dilks</span></p>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Jefferson Lab Staff Scientist</span></p>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Office: B122</span></p>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Phone: 757-269-7750</span></p>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Email: dilks@jlab.org</span></p>
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<b>From:</b> Christopher Dilks <dilks@jlab.org><br>
<b>Sent:</b> Saturday, July 12, 2025 06:43<br>
<b>To:</b> Valery Kubarovsky <vpk@jlab.org>; Tyler Lemon <tlemon@jlab.org><br>
<b>Cc:</b> Brian Eng <beng@jlab.org>; Marco.Mirazita@lnf.infn.it <marco.mirazita@lnf.infn.it>; Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> Re: [EXTERNAL] Re: [dsg-hallb_rich] RICH S4 CRIO heartbeat stopped</div>
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Dear all,</div>
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It seems like the cRIO spontaneously fixed itself; see <a href="https://logbooks.jlab.org/entry/4416371" id="OWAe609627a-c3d4-3a9a-bcaa-46b72e066c4b" class="x_OWAAutoLink" data-auth="NotApplicable">
https://logbooks.jlab.org/entry/4416371</a></div>
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Thanks,</div>
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Chris</div>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Christopher Dilks</span></p>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Jefferson Lab Staff Scientist</span></p>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Office: B122</span></p>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Phone: 757-269-7750</span></p>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Email: dilks@jlab.org</span></p>
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<b>From:</b> Marco Mirazita <Marco.Mirazita@lnf.infn.it><br>
<b>Sent:</b> Thursday, July 10, 2025 10:06<br>
<b>To:</b> Valery Kubarovsky <vpk@jlab.org><br>
<b>Cc:</b> Brian Eng <beng@jlab.org>; Christopher Dilks <dilks@jlab.org>; Tyler Lemon <tlemon@jlab.org>; Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> [EXTERNAL] Re: [dsg-hallb_rich] RICH S4 CRIO heartbeat stopped</div>
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<div style="direction: ltr; font-size: 11pt;">Hello,<br>
I agree with Valery, no reason to stop the data taking, but in case<br>
please be ready.<br>
Thank you,<br>
Marco<br>
<br>
<br>
Il 2025-07-10 16:04 Valery Kubarovsky via dsg-hallb_rich ha scritto:<br>
> I understand this, and I have no intention of interrupting data<br>
> taking. Nevertheless, if there is significant downtime, I would prefer<br>
> to take the opportunity to fix the cRio. Please be prepared.<br>
><br>
> -------------------------<br>
><br>
> From: Brian Eng <beng@jlab.org><br>
> Sent: Thursday, July 10, 2025 09:37<br>
> To: Valery Kubarovsky <vpk@jlab.org>; Christopher Dilks<br>
> <dilks@jlab.org>; Tyler Lemon <tlemon@jlab.org><br>
> Cc: Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
> Subject: Re: RICH S4 CRIO heartbeat stopped<br>
><br>
> It can probably wait until the next planned maintenance window on<br>
> 7/17; at the very least I don't think this is something the beam<br>
> should be stopped for as troubleshooting can take longer than expected<br>
> if it isn't something obvious/simple.<br>
><br>
> Since we know there's still flow to S1, S4 should also be okay.<br>
><br>
> -------------------------<br>
><br>
> From: Valery Kubarovsky <vpk@jlab.org><br>
> Sent: Thursday, July 10, 2025 9:25 AM<br>
> To: Brian Eng <beng@jlab.org>; Christopher Dilks <dilks@jlab.org>;<br>
> Tyler Lemon <tlemon@jlab.org><br>
> Cc: Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
> Subject: Re: RICH S4 CRIO heartbeat stopped<br>
><br>
> Hi Brian,<br>
> Thanks for the update. I will let you know when the access will be<br>
> available.<br>
> Regards,<br>
> Valery<br>
><br>
> -------------------------<br>
><br>
> From: Brian Eng <beng@jlab.org><br>
> Sent: Thursday, July 10, 2025 09:22<br>
> To: Christopher Dilks <dilks@jlab.org>; Tyler Lemon <tlemon@jlab.org>;<br>
> Valery Kubarovsky <vpk@jlab.org><br>
> Cc: Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
> Subject: Re: RICH S4 CRIO heartbeat stopped<br>
><br>
> It looks like the sbRIO that was replaced 3 weeks ago is offline, or<br>
> at least isn't responding to pings.<br>
><br>
> There's nothing that can be done remotely so it would require an<br>
> access to further troubleshoot.<br>
><br>
> -------------------------<br>
><br>
> From: dsg-hallb_rich <dsg-hallb_rich-bounces@jlab.org> on behalf of<br>
> Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
> Sent: Thursday, July 10, 2025 9:05 AM<br>
> To: Christopher Dilks <dilks@jlab.org>; Tyler Lemon <tlemon@jlab.org><br>
> Cc: Valery Kubarovsky via dsg-hallb_rich <dsg-hallb_rich@jlab.org><br>
> Subject: Re: [dsg-hallb_rich] RICH S4 CRIO heartbeat stopped<br>
><br>
> Hi Tyler,<br>
> Please take a look to the RICH cRIO sector 4.<br>
> Thank you,<br>
> Valery<br>
><br>
> -------------------------<br>
><br>
> From: Christopher Dilks <dilks@jlab.org><br>
> Sent: Thursday, July 10, 2025 02:15<br>
> To: Tyler Lemon <tlemon@jlab.org><br>
> Cc: Valery Kubarovsky <vpk@jlab.org><br>
> Subject: RICH S4 CRIO heartbeat stopped<br>
><br>
> Hi Tyler,<br>
><br>
> The heartbeat stopped around 1am:<br>
> <a href="https://logbooks.jlab.org/entry/4415043" id="OWAe917263b-fe10-895f-eb09-e2d9eb4c9832" class="x_OWAAutoLink" data-auth="NotApplicable">
https://logbooks.jlab.org/entry/4415043</a><br>
><br>
> All Sector 4 N2 volume PVs are frozen. The frozen values look normal.<br>
><br>
> Can you take a look when you get this message? Meanwhile the shift<br>
> crew is calling engineering on-call (following the alarm guidance).<br>
><br>
> Thanks,<br>
> Chris<br>
><br>
>> Christopher Dilks<br>
>><br>
>> Jefferson Lab Staff Scientist<br>
>><br>
>> Office: B122<br>
>><br>
>> Phone: 757-269-7750<br>
>><br>
>> Email: dilks@jlab.org<br>
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