NEWS:
The long shutdown is over. We are back to the data taking mode.
VNODE:
The COT1 mystery mentioned during the last MCS meeting is solved. An alert
ace
noticed that there was an error message concerning with tags in COT1.
There
is no logical link to COT1. The correct logical name for COT system is
COT2.
One of the high voltage bar in the HV summary page had typo - COT2. Now
the
bugs are fixed.
Trigger Inhibit:
Jonathan thinks making I/O card working is not so difficult. Aces should
mask
off system when partition is set in error handler - not from the iFix
trigger inhibit page.
SVX subsystem matching is not done yet. There are 3 systems NI I/O cards
installed but we are not using them yet. These are MUON3, CCU and CLC
system.
Addendum: plug does not inhibit when in stand-by, Steve will ask Luciana to fix this.
TOF:
Steve said TOF still cause some problems from time to time.
ICICLE:
There were frequent ICICLE problems during the last month. Most of the
problems
disappeared recently. Most problems were caused by the fact that CDF database
was on and off all the time.
CLC:
For most part, CLC is working. However there are a few
problems: 1) Alarms go off without reason.
2) Can not raise nor lower high voltages due to connection time out.
Tests show there are noise problems. Mary and Steve will move the CLC
PC to where the CAEN is to cut down noise. Hope this works.
Addendum: this was done later that same day with the help of J.J. and
Mark Knapp. Doing this made a HUGE difference in the performance
of the CLC1 node. No errors, no timeouts. Furthermore, the
readout seemed to speed up by a large factor (10X?). I (Steve)
suspect that there are error detection/correction routines at the
driver level which were slowing readout down considerably even when it
did work correctly. However, I did find one problem which I did
not know about until yesterday: according to this PDF file,
you have to terminate BOTH ends of the Lemo cable with 50 ohm
terminators. Sure enough, I look at the plug A1303 and its
terminated; the CLC A1303 was not until just now. There is one
remaining problem: the inhibit line out of the CAEN 527 does not appear
to be working correctly. I will check into this, also.
PSM:
Roberto is working on the BMV boxes in the collision hall to fix the
problem of
serial number corruption. We think some kind of shock is setting channel
serial number to a bogus number, 10.
The long known, flipped bit problem was fixed by Dan by reshuffling data lines, so that a different shorter line used the serial-to-RS485 convertor which is different from all the other lines.