Initial commit

unilabos/device_comms/modbus_plc/server.py

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+import modbus_tk.defines as cst
+import modbus_tk.modbus_tcp as modbus_tcp
+
+# 创建一个 Modbus TCP 服务器
+server = modbus_tcp.TcpServer(
+	address="127.0.0.1", port=5021, timeout_in_sec=1
+)
+
+# 添加一个从设备 (slave)
+slave_id = 1
+slave = server.add_slave(slave_id)
+
+# 为从设备分配地址空间，例如保持寄存器 (holding registers)
+# 假设地址范围为 7000 到 7100，对应客户端M01_idlepos_velocity_rw
+slave.add_block('hr', cst.HOLDING_REGISTERS, 7000, 100)
+slave.add_block('coil_block', cst.COILS, 56000, 1000)
+
+
+# 初始化地址 56488 和 56432 的值为 True
+slave.set_values('coil_block', 56488, [True])  # Coil 56488 设置为 True
+slave.set_values('coil_block', 56432, [True])  # Coil 56432 设置为 True
+
+slave.set_values('coil_block', 56496, [True])  # Coil 56488 设置为 True
+slave.set_values('coil_block', 56432, [True])  # Coil 56432 设置为 True
+
+
+# slave.add_block('hr', cst.COILS, 7000, 100)
+server.start()
+print("Modbus TCP server running on localhost:5021")
+
+# 保持服务器运行，直到按下 Ctrl+C
+try:
+    while True:
+        pass
+except KeyboardInterrupt:
+    server.stop()
+    print("Server stopped.")