78 lines
2.3 KiB
Python
Executable File
78 lines
2.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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'''
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The app will try to start charging
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and show the charger voltage, battery voltage and charging current
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stop charging in 30 seconds
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'''
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from minimalmodbus import Instrument, MODE_RTU
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import serial
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import time
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VERSION = '0.1.0'
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UNIT = 16
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MODBUS_FC_READ_SINGLE_COIL = int("0x01", 16)
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MODBUS_FC_READ_SINGLE_DISCRETE = int("0x02", 16)
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MODBUS_FC_READ_HOLDING_REGISTERS = int("0x03", 16)
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MODBUS_FC_READ_INPUT_REGISTERS = int("0x04", 16)
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MODBUS_FC_WRITE_SINGLE_REGISTER = int("0x06", 16)
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enable_charger_address = 0
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charger_voltage_adddress = 30
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batery_voltage_address = 32
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current_address = 31
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def run():
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import argparse
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parser = argparse.ArgumentParser(description='xnergy charger control demo')
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parser.add_argument('port', type=str,
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help='The serial port(RS485) that connect to xnergy RCU')
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# parser.add_argument('-P', '--parallel', type=int, nargs='*', choices=(17, 18, 19),
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# help='set to parallel mode, parameter is the unit id, can be used multiple times')
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parser.add_argument('-v', '--verbose', action='count', default=0,
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help='verbose mode, show more information')
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args = parser.parse_args()
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instrument = Instrument(port=args.port, mode=MODE_RTU, slaveaddress=UNIT)
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instrument.serial.baudrate = 9600
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# start charging
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instrument.write_bit(registeraddress=enable_charger_address, value=1)
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print('Start Charging, will stop charging in 30 seconds')
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counter = 0
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while True:
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charger_voltage = instrument.read_registers(registeraddress=charger_voltage_adddress, number_of_registers=1,
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functioncode=MODBUS_FC_READ_INPUT_REGISTERS)
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batery_voltage = instrument.read_registers(registeraddress=batery_voltage_address, number_of_registers=1,
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functioncode=MODBUS_FC_READ_INPUT_REGISTERS)
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current = instrument.read_registers(registeraddress=current_address, number_of_registers=1,
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functioncode=MODBUS_FC_READ_INPUT_REGISTERS)
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print(
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str(counter) + ' '
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'Charger voltage: ' + str(charger_voltage) + ' '
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'Battery voltage: ' + str(batery_voltage) + ' '
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'Current: ' + str(current)
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, end='\r', flush=True)
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counter += 1
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if counter > 30:
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break
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time.sleep(1)
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print()
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# stop charging
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instrument.write_bit(registeraddress=enable_charger_address, value=0)
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print('Stop Charging')
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if __name__ == "__main__":
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run()
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