<html><body><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000"><div>The manual override switches are turned on as part of the hardware Interlock upgrade.<br></div><div>The switches bypass the hardware interlock system and directly shorts the Mpod crate enable signals to +5V.<br data-mce-bogus="1"></div><div>We're reading back that bypass voltage on an ADC in the cRio crate and it's measuring +5V so they should be enabled.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Please check the interlock connector on the front of the crates. </div><div>Also check the Mpod crates, controllers, and EPICS interface.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>The cRio upgrade is in progress so rebooting and loss of contact via EPICS will be occurring.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Yuri Gotra" <gotra@jlab.org><br><b>To: </b>"dsg-svt" <dsg-svt@jlab.org><br><b>Sent: </b>Tuesday, July 24, 2018 9:36:11 AM<br><b>Subject: </b>Re: [dsg-svt] [Dsg-hallbgas] Gas System cRIOs<br></div><div><br></div><div data-marker="__QUOTED_TEXT__"><p>Could you please check the SVT HW interlock. Cannot clear HV output inhibits for MPOD crates 1 and 4. Nathan suspects this issue is related to cRio. Thank you<br></p><br><div class="moz-cite-prefix">On 7/20/18 10:43 AM, Yuri Gotra wrote:<br></div><blockquote cite="mid:ec021c50-a2b8-e189-18b4-c7264f6d1c6b@jlab.org"><p>Great, thank you Peter<br></p><br><div class="moz-cite-prefix">On 7/20/18 10:35 AM, Peter Bonneau wrote:<br></div><blockquote cite="mid:1006803013.1765063.1532097346429.JavaMail.zimbra@jlab.org"><div style="font-family: arial,helvetica,sans-serif; font-size:
12pt; color: #000000" data-mce-style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000;"><div>Yuri,<br></div><div><br></div><div>We want to upgrade the hardware interlock cRio next week also.<br></div><div>During the upgrade, we can use the manual override switches to prevent any dropping of interlocks.<br></div><div><br></div><br></div></blockquote><br> <br><fieldset class="mimeAttachmentHeader"></fieldset><br><pre>_______________________________________________
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