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https://github.com/dptech-corp/Uni-Lab-OS.git
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108 lines
2.9 KiB
Python
108 lines
2.9 KiB
Python
import time
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from pymodbus.client import ModbusTcpClient
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from unilabos.device_comms.modbus_plc.node.modbus import Coil, HoldRegister
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from pymodbus.payload import BinaryPayloadDecoder
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from pymodbus.constants import Endian
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# client = ModbusTcpClient('localhost', port=5020)
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client = ModbusTcpClient('192.168.3.2', port=502)
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client.connect()
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coil1 = Coil(client=client, name='coil_test1', data_type=bool, address=4502*8)
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coil1.write(True)
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time.sleep(3)
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coil1.write(False)
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coil1 = Coil(client=client, name='coil_test1', data_type=bool, address=4503*8)
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coil1.write(True)
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time.sleep(3)
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coil1.write(False)
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exit(0)
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register1 = HoldRegister(client=client, name="test-1", address=7040)
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coil1 = Coil(client=client, name='coil_test1', address=7002*8)
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coil1.write(True)
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while True:
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# result = client.read_holding_registers(address=7040, count=2, slave=1) # unit=1 是从站地址
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result = register1.read(2, slave=1)
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if result.isError():
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print("读取失败")
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else:
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print("读取成功:", result.registers)
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decoder = BinaryPayloadDecoder.fromRegisters(
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result.registers, byteorder=Endian.BIG, wordorder=Endian.LITTLE
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)
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real_value = decoder.decode_32bit_float()
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print("这里的值是: ", real_value)
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if real_value > 42:
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coil1.write(False)
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break
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time.sleep(1)
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# # 创建 Modbus TCP 客户端，连接到本地模拟的服务器
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# client = ModbusClient('localhost', port=5020)
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# # 连接到服务器
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# # 读取保持寄存器（地址 0，读取 10 个寄存器）
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# # address: int,
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# # *,
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# # count: int = 1,
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# # slave: int = 1,
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# response = client.read_holding_registers(
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# address=0, count=10, slave=1
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# )
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# response = coil1.read(2, slave=1)
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#
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# if response.isError():
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# print(f"Error reading registers: {response}")
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# else:
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# print(f"Read holding registers: {response.bits}")
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#
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# coil1.write(1, slave=1)
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# print("Wrote value 1234 to holding register 0")
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#
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# response = coil1.read(2, slave=1)
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# if response.isError():
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# print(f"Error reading registers: {response}")
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# else:
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# print(f"Read holding registers after write: {response.bits}")
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#
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#
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# if response.isError():
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# print(f"Error reading registers: {response}")
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# else:
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# print(f"Read holding registers after write: {response.bits}")
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client.close()
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# # 写入保持寄存器（地址 0，值为 1234）
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# client.write_register(0, 1234, slave=1)
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# print("Wrote value 1234 to holding register 0")
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# # 再次读取寄存器，确认写入成功
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# response = client.read_holding_registers(address=0, count=10, slave=1)
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# if response.isError():
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# print(f"Error reading registers: {response}")
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# else:
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# print(f"Read holding registers after write: {response.registers}")
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# # 关闭连接
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# client.close()
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