Initial commit

unilabos/device_comms/modbus_plc/test/client.py

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