64 lines
1.9 KiB
Python
Executable File
64 lines
1.9 KiB
Python
Executable File
#!python
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from pymodbus.client import ModbusSerialClient, ModbusTcpClient
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from pymodbus.pdu.register_read_message import ReadInputRegistersResponse
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from configModel import Algo, Metrique, Capteur, ModbusType
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import struct, time
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# client = ModbusTcpClient(host="shellyproem50-08f9e0e79718") # grarage (borne et pac)
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# client = ModbusTcpClient(host="ShellyPro3EM-FCE8C0D97664") # bureau (prises 1 à 3)
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client = ModbusSerialClient(
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port="/dev/ttyACM0",
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baudrate=4800,
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# stopbits=capteur.comConfig.stopbits,
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# bytesize=capteur.comConfig.bytesize,
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# parity=capteur.comConfig.parity
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)
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def ieee754(registres:list):
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float_bytes = struct.pack('HH', registres[0], registres[1])
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return struct.unpack('f', float_bytes)[0]
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def uint32(a, b):
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ret:int = (a << 16) | b
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return ret
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slave = 1
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def lireMetrique(metrique:Metrique, registre):
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client.connect()
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try:
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data:ReadInputRegistersResponse = client.read_input_registers(registre, 2, slave=slave)
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if data:
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print(f"--> {data}")
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registres = data.registers
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if metrique.algo == Algo.NORMAL:
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val = registres[0]
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if metrique.algo == Algo.IEEE2:
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val = round(ieee754(registres[0:2]), metrique.precision)
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if metrique.algo == Algo.UINT32:
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val = uint32(registres[0], registres[1])
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if metrique.algo == Algo.STRING:
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val = ''.join(chr(register) for register in data.registers)
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if metrique.algo == Algo.BOOLEAN:
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val = registres[0]
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print(f"Captation sur {registre} : {val}")
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except Exception as e:
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print(f"Erreur lors de la captation sur {registre} : {e}")
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finally:
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client.close()
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registre = -1
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if __name__ == '__main__':
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slave = 2
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while True:
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registre = 0
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m:Metrique = Metrique(
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idMetrique=1,
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indexRegistreDepart=registre,
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precision=3,
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algo=Algo.NORMAL
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)
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lireMetrique(m, registre)
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time.sleep(1)
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