KeithleySetVoltage.py

1. 1. 1. 1. Python Function to set Keithley voltage and read current
2. Import functions

from time import sleep from visa import instrument

1. Set keithley voltage and read current

def keithleySetVoltage(voltage,GPIB):

   try:
       k2400 = instrument('GPIB1::' + str(GPIB),timeout = 20)
   except:
       try:
           k2400 = instrument('GPIB::' + str(GPIB),timeout = 20)
       except:
           print ' no GPIB'
           return
   k2400.write('*rst; status:preset; *cls')
   k2400.write(':SOUR:FUNC:MODE VOLT')           #Select current source
   k2400.write(':SENS:CURR:RANG:AUTO ON')   #Auto Measure Range
   k2400.write(':SENS:FUNC "CURR"')        #Voltage measure function.
   k2400.write(':FORM:ELEM CURR')          #Voltage reading only.
   k2400.write(':SOUR:VOLT:LEV ' + str(voltage))
   sleep(0.1);
   k2400.write('read?')
   current = k2400.read_values()
   return current