130 lines
3.2 KiB
Python
130 lines
3.2 KiB
Python
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##
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## <<<< Powersupply Emulators >>>>
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## by Aidan Macdonald (aidan.plenert.macdonald@gmail.com)
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##
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## Contains classes that emulate powersupplies by
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## building off the Device framework
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##
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import Device, Prologix
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## **** Power Supply class ****
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## by Aidan Macdonald (aidan.plenert.macdonald@gmail.com)
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##
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## General model of a basic Power Supply
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##
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class PowerSupply(Prologix.Prologix_GPIB_USB):
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##%% Initialization PowerSupply(volt, current)
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## Creates a framework for a Powersupply, but only binds
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## a reset call to "RST?". All other functions have been
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## left unbound so that children can bind them to respective
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## commands
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##
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## voltage and current default to 10
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##
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def __init__(self, volt=10, cur=10):
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Prologix.Prologix_GPIB_USB.__init__(self)
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self.addCMD("RST?", self.reset)
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self.voltage = volt
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self.current = cur
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##%% reset(pty, args)
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## returns that the device has been reset
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##
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def reset(self, fpl, args=[]):
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return "Power Supply has been reset"
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##%% version(pty, args)
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## overrides the version function from superclass
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## left unbound here, because it was bound in the
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## superclass.
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##
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def version(self, fpl, args=[]):
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return "Power Supply Version 1.GEN"
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##%% on(pty, args)
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## turns power supply on
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##
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def on(self, fpl, args=[]):
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return self.version(fpl, args) + " in now ON"
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##%% off(pty, args)
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## turns power supply off
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##
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def off(self, fpl, args=[]):
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return self.version(fpl, args) + " in now OFF"
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##%% getVoltage(pty, args)
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## returns voltage
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##
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def getVoltage(self, fpl, args=[]):
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return self.voltage
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##%% getCurrent(pty, args)
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## returns current
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##
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def getCurrent(self, fpl, args=[]):
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return self.current
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##%% setVoltage(pty, args)
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## sets voltage
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##
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def setVoltage(self, fpl, args=[]):
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try:
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self.voltage = float(args[0])
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return ""
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except:
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return "ERROR"
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##%% setCurrent(pty, args)
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## sets current
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##
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def setCurrent(self, fpl, args=[]):
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try:
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self.current = float(args[0])
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return ""
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except:
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return "ERROR"
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##
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## **** E3631A Power Supply Class ****
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## by Aidan Macdonald (aidan.plenert.macdonald@gmail.com)
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##
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## Emulates the E3631A Power Supply
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##
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class E3631A(PowerSupply):
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##%% Initialization - E3631A(voltage, current)
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## see PowerSupply.PowerSupply documentation
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##
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## adds bindings for all of the PowerSupply functions
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##
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def __init__(self, volt=10, cur=10):
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PowerSupply.__init__(self, volt, cur)
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self.addCMD("OUTP", self.outp)
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self.addCMD("MEAS:VOLT:DC", self.getVoltage)
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self.addCMD("MEAS:CURR:DC", self.getCurrent)
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self.addCMD("SET:VOLT:DC", self.setVoltage)
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self.addCMD("SET:CURR:DC", self.setCurrent)
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##%% version(pty, args)
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## returns version
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##
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def version(self, fpl, args=[]):
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return "E3631A Power Supply"
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##%% outp(pty, args)
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## function binding for the "OUTP" command
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## Used to turn the device on and off
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##
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def outp(self, fpl, args=[]):
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if args[0] == "ON":
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return self.on(fpl, args)
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elif args[0] == "OFF":
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return self.off(fpl, args)
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return ""
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