import time
def exit(ser=None, code=0):
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
INI_INTG_L, INI_INTG_U = 1.0E+0, 2.5E+3
INI_N_STEPS_PROP, INI_N_STEPS_INTG = 101, 26
INI_INTERMEDIATE_STEPS = 10
PID_PROP_RANGE = np.linspace(INI_PROP_L, INI_PROP_U, INI_N_STEPS_PROP)
PID_INTG_RANGE = np.linspace(INI_INTG_L, INI_INTG_U, INI_N_STEPS_INTG)
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")
#!/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)