<html><body><div style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000"><div>The Nitrogen Volume and Gas System PVs don't seem to be updating for any PC in the the DSG control room (we checked on three different PCs).<br><br>I can also see in the LabVIEW that the uptime counter is at ~ 1700 seconds (~0.5 hours) where the EPICS screen shows the uptime at 0.33 hours (~1200 seconds). The heartbeat also isn't updating for us.<br><br></div><div>Is there anything on our end for the screens that we need to update?<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>-Tyler<br><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Nathan Baltzell" <baltzell@jlab.org><br><b>To: </b>"Tyler Lemon" <tlemon@jlab.org><br><b>Cc: </b>"dsg-rich" <dsg-rich@jlab.org><br><b>Sent: </b>Monday, May 14, 2018 10:56:18 AM<br><b>Subject: </b>Re: RICH PVs disconnect after softIOC reboot.<br></div><div><br></div><div data-marker="__QUOTED_TEXT__">The numbers are updating on my screen.<br><br>-Nathan<br><br><br>> On May 14, 2018, at 10:53 AM, Tyler Lemon <tlemon@jlab.org> wrote:<br>> <br>> Hi Nathan,<br>> <br>> We will not reboot the IOC anymore before talking to you and getting the okay to do so.<br>> <br>> Since the IOC was working fine again with your help, I did the last reboot of the cRIO to finalize the PV typo correction in the cRIO's start-up application. After the cRIO started back up and its start-up program started running, the EPICS screen now seems to be frozen. I have verified that the LabVIEW is working correctly up to the point where it writes to the variable assigned to the PV.<br>> <br>> At this point in the past, a reboot of the soft IOC would be done to try to fix the frozen EPICS. Is there something else that we could do besides rebooting the IOC that would fix the frozen EPICS screen?<br>> <br>> Please let us know.<br>> <br>> -Tyler<br>> <br>> From: "Nathan Baltzell" <baltzell@jlab.org><br>> To: "Tyler Lemon" <tlemon@jlab.org><br>> Cc: "dsg-rich" <dsg-rich@jlab.org><br>> Sent: Monday, May 14, 2018 10:43:09 AM<br>> Subject: Re: RICH PVs disconnect after softIOC reboot.<br>> <br>> > After the cRIO reboot, the PVs were disconnected.<br>> <br>> Due to the way this setup works, that’s hard to believe. You can completely turn off the crio permanently without even affecting the softioc (except the numbers won’t update, and a heartbeat alarm will be generated, and then when you reboot the crio the numbers will start updating again). You can test that if you want.<br>> <br>> Are you sure you didn’t reboot the softioc before the PVs went disconnected?<br>> <br>> Please let me know next time the PVs go disconnected, before doing anything with the softioc.<br>> <br>> -Nathan<br>> <br>> <br>> <br>> <br>> <br>> > On May 14, 2018, at 10:35 AM, Tyler Lemon <tlemon@jlab.org> wrote:<br>> > <br>> > Hi Nathan,<br>> > <br>> > There was a PV that had a typo on the cRIO client that was corrected, to set the corrected LabVIEW program as the start-up application, the cRIO needs to reboot. After the cRIO reboot, the PVs were disconnected. The past procedure we've used to fix this is to reboot the softIOC.<br>> > <br>> > In the future, we will not reboot the softIOC. Is there something else we should do if after a cRIO reboot, the PVs are disconnected?<br>> > <br>> > Best regards,<br>> > Tyler<br>> > <br>> > From: "Nathan Baltzell" <baltzell@jlab.org><br>> > To: "Tyler Lemon" <tlemon@jlab.org><br>> > Cc: "dsg-rich" <dsg-rich@jlab.org><br>> > Sent: Monday, May 14, 2018 10:22:32 AM<br>> > Subject: Re: RICH PVs disconnect after softIOC reboot.<br>> > <br>> > Hi Tyler,<br>> > <br>> > There was a bug in the database file after some cleanup after the run. I fixed it and rebooted. Sorry about that. <br>> > <br>> > But actually, there’s basically zero reason to ever reboot that ioc. Certainly no changes on the crio ever require rebooting that ioc. What were you trying to achieve by rebooting it?<br>> > <br>> > -Nathan<br>> > <br>> > <br>> > > On May 14, 2018, at 10:10 AM, Tyler Lemon <tlemon@jlab.org> wrote:<br>> > > <br>> > > Hi Nathan,<br>> > > <br>> > > This morning I rebooted RICH's soft IOC after updating an incorrect PV name on the EPICS client of RICHCRIO (IP: 129.57.160.213).<br>> > > <br>> > > After the reboot, all but three RICH interlock PVs show as disconnected on the EPICS screen, even the ones for RICHCRIOS1EP (IP: 129.57.160.214) whose EPICS client was not touched in any way.<br>> > > <br>> > > Rebooting the softIOC does not fix the error, nor does rebooting the cRIO.<br>> > > <br>> > > Is there anything else that would allow all PVs to reconnect?<br>> > > <br>> > > Please let us know.<br>> > > <br>> > > Best regards,<br>> > > Tyler<br></div></div></body></html>