17 lines
605 B
Python
17 lines
605 B
Python
from pymodbus.client.sync import ModbusSerialClient
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import serial.rs485
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ser=serial.rs485.RS485(port='/dev/ttyAMA0',baudrate=1200)
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ser.rs485_mode = serial.rs485.RS485Settings(rts_level_for_tx=False,
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rts_level_for_rx=True,
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delay_before_tx=0.005,
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delay_before_rx=-0.0)
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client = ModbusSerialClient(method='rtu')
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client.socket = ser
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client.connect()
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result = client.read_holding_registers(address=0x2000, count=2, unit=1)
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print(result)
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print(result.registers)
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client.close()
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