test_pduswitch.py

#!/usr/local/bin/python
#
#                               Copyright 2004
#                                     by
#                        The Board of Trustees of the
#                     Leland Stanford Junior University.
#                            All rights reserved.
#


__facility__ = "Online"
__abstract__ = "PDU switch test"
__author__   = "Patrick Young <plsyoung@SLAC.Stanford.edu> SLAC - GLAST LAT Electronics"
__date__     = "16/09/2004"
__version__  = "$Revision: 2.2 $"
__credits__  = "SLAC"

from LATTE.client.gOptions   import Options
from LATTE.client.gCmdCli    import CmdCli
from LATTE.database.gLAT     import GLAT
from LATTE.database.gPlumber import Plumber

from ELX.Common.instruments.ElxSwitch import ElxSwitch
from ELX.Common.instruments.ElxPowerSupply import ElxPowerSupply
from ELX.Common.instruments.ElxFunctionGenerator import ElxFunctionGenerator

import time
import traceback

class PduSwitch:
  def __init__(self, lat):
    self.lat = lat
    self.switch = ElxSwitch('37', 'COM2', [100,200])
    self.black0 = ElxPowerSupply('1697', 'COM1', 5)
    if not self.switch.allOpen():
      raise RuntimeError, 'allOpen failed'
    if not self.black0.setVoltage(28.):
      raise RuntimeError, 'setVoltage failed'
    if not self.black0.switchOn():
      raise RuntimeError, 'switchOn failed'
  
  def configureTestHardware(self, pdu, gasu):
    status = self.__setRelays(pdu, gasu)
    if not status:
      message = 'Problem setting relays pdu %d, gasu side %d, please resolve' \
                %(pdu, gasu)
      raise RuntimeError, message
    self.__plumb(self.lat, pdu, gasu)

  def __setRelays(self, pdu=0, gasu=0):
    feed = 0
    success = self.switch.allOpen()
    #time.sleep(1)
    pattern0 = 2*pdu + feed + 1
    pattern1 = 2*gasu + pdu + 1
    success &= self.switch.setValue(100, pattern0)
    #time.sleep(1)
    success &= self.switch.setValue(200, pattern1)
    #time.sleep(1)
    return success

  def __plumb(self, lat, pdu=0, gasu=0):
    onPdu = lat.downPDU(pdu)
    offPdu = lat.downPDU(pdu^1)
    lcb = lat.downLCB()
    offPdu.setFlag('CmdrspFabric','Off')
    onPdu.setFlag('CmdrspFabric','On')
    lcb.setFlag('UseRedundant',gasu)
    plumber = Plumber(lat, None)
    plumber.initialize(3, ocsverbose=True, force=True)


if __name__ == '__main__':
  options = Options(['server', 'schema'])
  
  try:
    options.parse()
  except Exception, msg:
    options.usage(str(msg))
    raise RuntimeError

  cmd = CmdCli()
  cmd.connect(options.server)
  cmd.setDebug(1)

  lat = GLAT(cmd)
  lat.readSchema(options.schema)
 
  pduswitch = PduSwitch(lat)

  i = 0
  while True:
    print 'set configuration %d' %(i%4)
    pduswitch.configureTestHardware(i%2, (i>>1) & 0x1)
    print 'test %d completed, iteration %d. %s' %(i%4, i, time.ctime())
    i += 2

---