# -*- coding: utf-8 -*-
"""
Created on Mon Aug 1 12:15:19 2022
@author: Martin.Mihaylov
"""
'''
The script is take https://github.com/uberdaff/kd3005p/blob/master/kd3005p.py
and cosmetically preprocessed.
# Copyright 2017 uberdaff
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
#
# Requirement: pyserial
#
# getIdn() - Get instrument identification
# set_Volt(tal) - Set the voltage on the output
# ask_Volt() - Get the 'set' voltage
# read_Volt() - Get a measurement of the voltage
# set_Amp(tal) - Set the current limit
# ask_Amp() - Get the 'set' current limit
# read_Amp() - Get a measurement of the output current
# set_Out(bool) - Set the state of the output
# set_Ocp(bool) - Set the state of the over current protection
# ask_Status() - Get the state of the output and CC/CV
'''
import sys
import time
import serial
[docs]
class KA3005p:
isConnected = False
psu_com = None
status = {}
def __init__(self, psu_com):
'''
Parameters
----------
psu_com : str
COM Port
Returns
-------
None
'''
try:
psu_com = serial.Serial(
port=psu_com,
baudrate=9600,
parity=serial.PARITY_NONE,
stopbits=serial.STOPBITS_ONE,
bytesize=serial.EIGHTBITS
)
psu_com.isOpen()
self.psu_com = psu_com
self.isConnected = True
self.status=self.ask_Status()
except:
print("COM port failure:")
print(sys.exc_info())
self.psu_com = None
self.isConnected = False
[docs]
def Close(self):
self.psu_com.close()
print('Instrument KD3005 is closed!')
[docs]
def serWriteAndRecieve(self, data, delay=0.05):
self.psu_com.write(data.encode())
out = ''
time.sleep(delay)
while self.psu_com.inWaiting() > 0:
out += self.psu_com.read(1).decode()
if out != '':
return out
return None
[docs]
def getIdn(self):
'''
Returns
-------
TYPE str
Instrument identification
'''
return self.serWriteAndRecieve("*IDN?", 0.3)
[docs]
def set_Volt(self, voltage, delay=0.01):
'''
Parameters
----------
voltage : int/float
Set the voltage on the Display
delay : 0.01s Delay
Returns
-------
None
'''
self.serWriteAndRecieve("VSET1:"+"{:1.2f}".format(voltage))
time.sleep(delay)
[docs]
def ask_Volt(self):
'''
Returns
-------
TYPE float
Voltage set.
'''
return float(self.serWriteAndRecieve("VSET1?"))
[docs]
def read_Volt(self):
'''
Returns
-------
TYPE float
Voltage measured
'''
return float(self.serWriteAndRecieve("VOUT1?"))
[docs]
def set_Amp(self, amp, delay=0.01):
'''
Parameters
----------
amp : int/float
Set the current on the Display
delay : 0.01s Delay
Returns
-------
None
'''
self.serWriteAndRecieve("ISET1:"+"{:1.3f}".format(amp))
time.sleep(delay)
[docs]
def ask_Amp(self):
'''
Returns
-------
TYPE float
Current set.
'''
return float(self.serWriteAndRecieve("ISET1?"))
[docs]
def read_Amp(self):
'''
Returns
-------
TYPE float
Current measured
'''
return float(self.serWriteAndRecieve("IOUT1?"))
[docs]
def set_Out(self, state):
'''
Parameters
----------
state : str (ON/OFF)
Turn Output ON and OFF
Returns
-------
None.
'''
if(state == 'ON'):
self.serWriteAndRecieve("OUT1")
elif(state == 'OFF'):
self.serWriteAndRecieve("OUT0")
[docs]
def set_Ocp(self, state):
'''
Parameters
----------
state : str (ON/OFF)
Set the state of the overcurrent protection ON and OFF
Returns
-------
None.
'''
if(state == 'ON'):
self.serWriteAndRecieve("OCP1")
elif(state == 'OFF'):
self.serWriteAndRecieve("OCP0")
[docs]
def ask_Status(self):
'''
Returns
-------
TYPE
Get the state of the output and CC/CV
'''
stat = ord(self.serWriteAndRecieve("STATUS?")[0])
if (stat&(1 << 0))==0:
self.status["Mode"]="CC"
else:
self.status["Mode"]="CV"
if (stat&(1 << 6))==0:
self.status["Output"]="Off"
else:
self.status["Output"]="On"
return self.status
# =============================================================================
# Get/Save Data
# =============================================================================
[docs]
def get_data(self):
'''
Returns
-------
OutPut : dict
Return a dictionary with the measured voltage and current.
'''
OutPut = {}
Voltage = self.read_Volt()
Current = self.read_Amp()
OutPut['Voltage/V'] = Voltage
OutPut['Current/A'] = Current
return OutPut