Python wrapper for CAEN High Voltage C library.
Project description
CAEN_HV_Python
Python wrapper around C wrapper for CAEN HV crate control, whose manual is included in the git repository. Currently only impelements functions for logging into and out of a CAEN HV crate over IP, reading and setting power status, setting HV target values, reading HV monitor values, and reading current monitor values. All reads and writes are currently implemented one channel at a time, though the C wrapper supports reading and writing to multiple channels at once.
The user must specify and pass the crate IP address, username, and password to the CAENHVController initialization. It is noted in CAEN C wrapper manual that some models will disconnect if there has been no communication for 15 seconds.
An example implementation is shown below.
from caen_hv_py.CAENHVController import CAENHVController
from time import sleep
ip_address = '192.168.20.20' # Enter your CAEN HV Crate IP address
username = 'user' # Enter your CAEN HV Crate Username
password = 'pass' # Enter your CAEN HV Crate Password
slot = 1
channels = [0, 1, 2, 3, 4]
v0s = [50, 100, 150, 200, 250]
with CAENHVController(ip_address, username, password) as hv_wrapper:
print('Turning off channels')
for channel in channels:
power = hv_wrapper.get_ch_power(slot, channel)
if power:
hv_wrapper.set_ch_pw(slot, channel, 0)
sleep(1)
sleep(5)
print('Setting channels V0')
for channel, v0 in zip(channels, v0s):
hv_wrapper.set_ch_v0(slot, channel, v0)
sleep(1)
sleep(5)
print('Turning on channels')
for channel in channels:
power = hv_wrapper.get_ch_power(slot, channel)
if not power:
hv_wrapper.set_ch_pw(slot, channel, 1)
sleep(1)
sleep(10)
print('Getting channel power and Vmon')
for channel in channels:
power = hv_wrapper.get_ch_power(slot, channel)
vmon = hv_wrapper.get_ch_vmon(slot, channel)
print(f'Channel {channel} power: {power} Vmon: {vmon}')
sleep(5)
print('Turning off channels')
for channel in channels:
power = hv_wrapper.get_ch_power(slot, channel)
if power:
hv_wrapper.set_ch_pw(slot, channel, 0)
print('Finshed')
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