A TCP port is a communication endpoint for transmitting data between devices on a network using the TCP protocol. On Maple Systems products, TCP ports facilitate connections between HMIs, PLCs, and other networked devices for data exchange and control. Each port is identified by a unique number, allowing multiple applications to run simultaneously on the same device.
Commonly used ports include 502 for Modbus TCP and 80 for web services, among others. Proper port configuration ensures seamless communication while minimizing the risk of unauthorized access or conflicts. Always verify port settings to match your application’s requirements and network policies.
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