Controls Meeting 14-Nov-2013

Agenda

• Announcements
  • ECS - CSS now connected to cMsg by Graham H
• Minutes from previous meeting 17-Oct-2013
• Collimator table wiring - Hovanes, Mark S
• FCAL installation update - John L
• Controls installation/testing status - Dave B
• JInventory update - Serguei P, Elliott
  • BCAL, FCAL, FDC, etc.
• EPICS update - Hovanes, Vanik
• Solenoid improvements - Dave, Mark, Scot, Elliott
• Mantis task tracker
• Midas elog

• Future topics
  • Experiment Control Supervisor - Vardan, Elliott

Time/Location

9:30AM Thurs 14-Nov-2013 CC A110

Next Meeting

Note: no meeting Thanksgiving week

9:30am Thurs 12-Dec-2013

Minutes

Present: Elliott W, Dave B, Beni Z, Hovanes E, Scot S.

PLC Controls

Dave reported on progress on many subsystems:

• FCAL
  • Controls working, tested as far as possible on the floor, waiting for darkroom completion.
  • Serguei will label everything and handle JInventory database entries.
  • Installation in final location immanent.

• Gas System
  • PLC mounted on back of gas panel on main platform, much shorter cables needed although need man-lift to work on PLC (uncommon after installation).
  • NBX and Point I/O in gas shed, Ethernet cables will run to switch on FCAL platform.
  • Gas shed plumbing and wiring in progress (by Scot).
  • Currently have two mixing tanks, one each for FDC and CDC.
  • Brooks flow controllers deployed in master/slave configuration.
  • Input to flow controllers 50 psi, 15 psi out.
  • PLC has serial connection to flow controllers.
  • Narcisco modified Beni's original design, followup meeting will be called by Dave B to get final details.

• BCAL
  • Cables being installed along with four distribution boxes for RTD's.
  • Two CompactLogix PLC's will be used.
  • PLC modules require 3-wire hookup (to 4-wire sensors), must have equal-length cables to maintain precision.
  • Also to be installed is the chiller interface, must be careful about DB-9 to RJ45 adapter wiring.

• Target
  • Using pulse-tube refrigerator.
  • Lakeshore temperature monitor communication code working (RS232).
  • Lakeshore controller code under development (RS485).
  • One NBX can support one RS485 chain plus one RS232 connection.
  • Control gui will have "Fill" button, no detailed operator procedure needed.
  • Dave Meekins developing fill algorithm which contain sets of setpoints for different conditions.

• ST
  • Thermocouples read out by target PLC.

• PS
  • Thermocouples read out by upstream BCAL PLC.

• Solenoid
  • George maintains list of needed improvements.
  • Dave slowly working on them, e.g: SOE, rewrite of Danfysik communication, etc.

EPICS

• Nerses is gone, Vanik continues to work on HV/LV GUIs for upcoming tests.
• No power to FDC yet, coming soon, need soon!
• SNMP to MPOS's very slow in hall, ok in EEL, need to figure out what's wrong.
• May have to use BURT to save/restore setpoints until Acc upgrades MyA to do this.