from pymodbus.client.sync import ModbusTcpClient

client = ModbusTcpClient(host="169.254.11.130", port=502)  # 改為你的伺服器 IP
connection = client.connect()

if connection:
    result = client.write_registers(address=1633, values=[123, 222, 789], unit=255)
    print("✅ 寫入成功:", result)
    client.close()
else:
    print("❌ 無法連接到 Modbus 伺服器")