Glfrig Abstract


Usage :  GLFRIG is the Java Open Access Client (OAC) process which
	 provides global frig control and mass flow calculation devices.
	 You can view log files for GLFRIG in the directory
	 'daesrv\\engines\files\oac'.

Restart: GLFRIG is restarted when its DAE is restarted.

#######################################################################
# This OAC has been moved to Java.  The VMS-based GLFRIG is obsolete. #
# The keeper of the Java-based GLFRIG is Zongwei Yuan.                #
#######################################################################
Usage :  GLFRIG is the set of global frig intelligence processes. 
	  Right now it comprises 2 of them:
	  1. Mass flow calculations based on the helium library,
	     calculating flow in grams per second.
	  2. Cold compressor control for low betta quenches. It waits 
	  for the event 5E to occur and then checks quench conditions on
 	  B0 and D0 QPMs. If they are met, cold compressors will be switched 
	  of in the appropriate FRIG houses (A4 and B1 for B0 QPM and C4 
	  and D1 for D0 QPM).
	  Log file is located at op$usr1:[vaxappl.oaf.glfrig].

Restart:  GLFRIG is restarted on an ACNET boot of CDAS.  Using the 
	  Operator account on CDAS, a restart may be done with 
	  'ACNET RESTART GLFRIG'.

Errors:	  A (-1) is returned for both dio read errors and errors
	  in calculating devices.  Errors are written to an error log 
	  "GLFRIGLG".  Use D112 LOGTEST to access GLFRIGLG error log.
	  

Inputs:  See "F75 Helium Flows" for Input Device Names.
	 Each Mass Flow Meter has three input devices: flow, pressure
	 temperature.  Device Indices are stored in two FileShare files.
	 Compressors:   RSX$FHARE_APPLICAT_TEVATRON_FRIG:F74COMP.SAV
         Refrigerators: RSX$FHARE_APPLICAT_TEVATRON_FRIG:F74FRIG.SAV
	 "D75 Helium Flows" can be used to change input devices for both
	 "F75 Helium Flows" and "GLFRIG OAF" devices.  Changes 
	 show up in FileShare F74COMP.SAV abd F74FRIG.SAV Which can
	 be viewed from D50 FSDUMP.Select "Decimal*4" to read files.  
	 Flow, Pressure and Temperature 
	 devices are entered as Device Indices in the order of 
	 flow, pressure, temperature.  
	 F74COMP.SAV has 1 valid record with 60 input devices for
	 twenty Mass Flow Devices at ten Compressor houses.  
	 F74FRIG.SAV valid records 2 through 29.
	 First field in each record is the record number followed
	 by eighteen devices, three each for six Mass Flow Devices
         in each refrigerator house.  
	 BR record 26 has four Mass Flow Devices.
	 LB and RB records 27 and 28 have three Mass Flow Devices each.	 
	 PR record 29 has one Mass Flow Device.

DEVICE 			INPUTS:	FLOW	PRESSURE	TEMPERATURE 
-----------------------------------------------------------------------
COMPRESSOR HOUSES
-----------------
T:HHFIBM 
T:HHFI2M 

REFRIGERATOR HOUSES
-------------------
T:HHFI4M 
T:HHFILM 
T:HHFI3M 
T:HHFI1M 
T:HHFIUM 
T:HHFIDM 

Keeper: Zongwei Yuan

OAC Node: dce39

Now: Mon Sep 8 09:39:30 2008