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Ok, then. Let us try to fix it.</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><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</font>
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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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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><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</font>
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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="OWA6d235e18-ced0-da07-7544-a5dd132268c7" class="x_x_OWAAutoLink">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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<div id="x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><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</font>
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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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<div id="x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><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</font>
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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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<div id="x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><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</font>
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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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<div id="x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><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</font>
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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">
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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<div id="x_x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><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</font>
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<div class="x_x_x_x_x_x_PlainText">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">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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