Power and CANBus ALARMS/RECOVERY:
The two VME crates and six PL-500 dual power power supplies are controlled via CANBus shared with the Barrel EMC. Launch CANBus GUI from top level screen with the green "POWER" button
#90 has the slow controls
VxWorks CPU
#91 has the ETOW and ESMD data collectors
(Note: VxWorks operation produces the red "Bus System" light on crate #90 -- that is normal.)
#92-#94 tower FEE ... power cycle requires Tower
"master reload" for affected crates
#95-#97 MAPMT FEE ... power cycle requires MAPMT
"master reload" for affected sectors
This means one has lost control of Endcap VME crates and all FEE supplies, BUT likely all continues to run just fine (e.g., unless there are other alarms). To regain control requires a reboot which will also affect BEMC readout (likely also "white") so coordinate if necessary.
To reboot CANBus: from sc3.starp.bnl.gov
Note: the CANBus controller is located in BEMC crate #80 which also houses the BEMC data collector. Hence more drastic measures to force reboot are not benign.