SerRTU_calibration.py

from pymodbus.client.sync import ModbusSerialClient as ModbusClient
import time

scale = ModbusClient(method='rtu', port='/dev/ttyUSB0', parity='N', baudrate=9600, bytesize=8, stopbits=2, timeout=1)
connection = scale.connect()
print(connection)

# step001 去皮歸零 start:
'''
InitStart_write = scale.write_registers(1100, 1, unit=16) #去皮歸零 (start addr , count, deviceID)
b = scale.read_input_registers(0, 1, unit=16)
print('The weight is :', b.registers)
'''
# 去皮歸零 end＊＊


# step002 秤重 start:

# weight_read = scale.read_input_registers(0,10,unit=16)
# print('channel1 in U16 :' , weight_read.registers)
# print(type(weight_read.registers[0]))

# 秤重 end＊＊


# step003 校準模式 start:


#modeStart_read = scale.read_holding_registers(1009, 1, unit=16)  # Test GitHub
#print(modeStart_read.registers)

init = scale.read_input_registers(101, 1, unit=16)
init_value = init.registers[0]

time.sleep(1)
# step004 量程校準 start:
# read and write ADC1：重量較小

while True:
    try:
        time.sleep(1)
        # weight 1
        '''
        ADC1 = scale.read_input_registers(101, 1, unit=16)
        print(ADC1.registers[0])
        valueADC_write = scale.write_registers(301, ADC1.registers[0], unit=16)
        valueWeight_write = scale.write_registers(303, 0, unit=16)
        '''

        # weight 2
        '''
        ADC2 = scale.read_input_registers(101, 1, unit=16)
        print(ADC2.registers[0])
        valueADC_write2 = scale.write_register(305, ADC2.registers[0], unit=16)
        valueWeight_write2 = scale.write_register(307, 180, unit=16)
        '''

        # Measure

        InitStart_write = scale.write_registers(1100, 1, unit=16)
        weight_Value = scale.read_input_registers(0, 1, unit=16)
        print('The weight is : ',weight_Value.registers[0])

    except Exception as e:
        print(e)

'''
valueADC_write = scale.write_registers(301, valueADC_read.registers[1], unit=16) #read and write second index

#debug
valueADC_read2 = scale.read_holding_registers(300, 2, unit=16)
print(valueADC_read2.registers)

#write ADC1對應的實際 weight

valueWeight_write = scale.write_registers(303, 22, unit=16)

#debug

valueWeight_read = scale.read_holding_registers(302, 2, unit=16)
print(valueWeight_read.registers)

#read and write ADC2：重量較大

valueADC_read = scale.read_input_registers(100, 2, unit=16)
print(valueADC_read.registers)
valueADC_write = scale.write_registers(305, valueADC_read.registers[1], unit=16)

#debug

valueADC_read2 = scale.read_holding_registers(304, 2, unit=16)
print(valueADC_read2.registers)

#write ADC2對應的實際 weight

valueWeight_write = scale.write_registers(307, 2600, unit=16)

#debug

valueWeight_read = scale.read_holding_registers(306, 2, unit=16)
print(valueWeight_read.registers)

#量程校準 end:將ADC1,ADC1_weight ADC2,ADC2_weight寫入後,完成量程校準＊＊
#校準模式 end:拔掉電源＊＊

'''
scale.close()