<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: arial,helvetica,sans-serif; font-size: 10pt; color: #000000'>Hi,<br><br> The SHMS Q2 control net module required a power cycle on 11-14-18.<br>No other control net or Ethernet modules faulted during this time. It is another data point<br><br>Feb 06 2018 SHMS Dipole Control Net faulted result = crashed cryo to quench back at high current<br>April 02 2018 SHMS HX Control Net faulted result = no adverse effects<br>April 10 2018 SHMS Q2 Control Net faulted result = crashed cryo due to quench back at high current<br>April 21 2018 SHMS Q1 Control Net faulted result = no adverse effects<br>April 28 2018 SHMS Q3 Control Net faulted result = no adverse effects<br>Nov 14 2018 SHMS Q2 Control Net faulted result = no adverse effects<br><br>The Control net module for the SHMS HB has not faulted as of yet.<br>The Ethernet modules have not faulted as of yet either.<br>But, dose accumulation is building.<br>I plan to power cycle all the Net modules after thanksgiving.<br>Attached is a proposed work plan for that time period. Please review and comment on it.<br><br>thanks<br>Steven<br><br><br><br><hr id="zwchr"><div style="color: rgb(0, 0, 0); font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"Brian Eng" <beng@jlab.org><br><b>To: </b>"dsg-hallc controls" <dsg-hallc_controls@jlab.org><br><b>Sent: </b>Thursday, November 15, 2018 10:27:16 AM<br><b>Subject: </b>[Dsg-hallc_controls] PLC Resets<br><br>Hi Steve,<br><br>I saw some recent log entries about power cycling the SHMS remote chassis, in particular Q2.<br><br>Do you think this is related to ControlNet vs Ethernet? Has Q1 & HX been working okay?<br>_______________________________________________<br>Dsg-hallc_controls mailing list<br>Dsg-hallc_controls@jlab.org<br>https://mailman.jlab.org/mailman/listinfo/dsg-hallc_controls<br></div><br></div></body></html>