if not ser is None:
ser.cmd("LDON OFF")
time.sleep(1)
sys.exit(code)
# LDC501_SCAN_LIMITS
min_I, max_I = 100., 230. # float [mA]
min_steps, max_steps = 10, 1000000 # int
min_dwelltime, max_dwelltime = 6*ms, 1.0 # float [s]
# connect to device
ser = SerialObject(SerialInstruments['LDC501'])
try:
print "Instrument: " + ser.cmd_and_return("*IDN?")
ser.cmd("TOKN ON")
ser.cmd("LDON OFF")
ser.cmd("MODU OFF;RNGE LOW;SMOD CC")
ser.cmd("SYND 5")
time.sleep(1)
print "LD_I_LM: {0}".format(ser.cmd_and_return("SILM?"))
print "LD_V_LM: {0}".format(ser.cmd_and_return("SVLM?"))
cin = raw_input("I_lower [120]: ")
try: cin = float(cin)
except ValueError: cin = 120
scan_lower = cin if min_I <= cin <= max_I else 120
cin = raw_input("I_upper [160]: ")
try: cin = float(cin)
except ValueError: cin = 160
PID_MAP_PI = itertools.product(PID_PROP_RANGE, PID_INTG_RANGE)
#
# ___MAIN___
#
# CONNECT TO DEVICES
try:
if not args.debug:
LDC = SerialObject(SerialInstruments['LDC501'])
PID = SerialObject(SerialInstruments['SIM960'], wait=0.01)
if not args.noosci:
OSC = USBTMCObject(USBInstruments['LABOR']['vendorID'], USBInstruments['LABOR']['productID'])
TEM = GPIOSensor(GPIOSensors['THERM_LAB'])
PID.cmd("*CLS")
print "Instrument (LDC):\n\t" + LDC.ask("*IDN?")
print "Instrument (PID):\n\t" + PID.ask("*IDN?")
if not args.noosci:
print "Instrument (OSC):\n\t" + OSC.ask("*IDN?")
if TEM.read() is None:
raise ValueError()
LDC.cmd("TOKN ON")
LDC.cmd("LDON OFF;MODU OFF; RNGE LOW; SMOD CC; SIBW LOW; SYND 5")
time.sleep(1)
PID.cmd("TOKN ON; CONS OFF")
PID.cmd("INPT INT;SETP 0.0;RAMP OFF")
PID.cmd("AMAN PID;MOUT 0.0")
#!/usr/bin/env python
# -*- coding: utf-8 -*-
__author__ = 'Christian Velten'
from LIB.SerialInstrument import SerialObject, SerialInstruments
import serial
import sys
import time
instrument = [{
'address': '/dev/ttyUSB0',
'baudrate': 9600,
'parity': serial.PARITY_NONE,
'stopbits': serial.STOPBITS_TWO,
'bytesize': serial.EIGHTBITS,
'rtscts': False
}]
# connect to device
ser = SerialObject(instrument[0])
ser.cmd("AMPL 4VP")
print ser.ask("*IDN?")
time.sleep(1)
