36 lines
1015 B
Python
36 lines
1015 B
Python
print("modbus test")
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# Настройки клиента Modbus
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MODBUS_SERVER_HOST = "192.168.70.55" # IP-адрес Modbus-сервера
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MODBUS_SERVER_PORT = 502
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from pymodbus.client import ModbusTcpClient
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from pymodbus.constants import Endian
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from pymodbus.payload import BinaryPayloadDecoder
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client = ModbusTcpClient(
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MODBUS_SERVER_HOST,
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port=MODBUS_SERVER_PORT,
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)
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client.connect()
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try:
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# читаем Y
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# 0 - зеленый свет
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# 1 - желтый свет
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addr = 2
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coils = client.read_coils(addr, 1, 11)
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print("читаем начальное состояние", coils.bits)
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new_bits = coils.bits
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new_bits[0] = not new_bits[0]
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print("пытаемся записать", new_bits, coils.slave_id)
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result = client.write_coil(addr, new_bits[0], coils.slave_id)
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print(result)
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print("читаем после попытки", client.read_coils(0, len(coils.bits), coils.slave_id).bits)
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except Exception as e:
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print("error", e)
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client.close()
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