Your cart is currently empty!
What is Full or Half-Duplex Mode?
Duplex mode determines how data is transmitted between network devices. Full-duplex allows simultaneous sending and receiving of data. Half-duplex only allows one direction at a time, causing potential collisions. Full-duplex is common in modern Ethernet networks, improving speed and efficiency. Half-duplex is mostly found in legacy devices or misconfigured networks.
Example Scenario: Maple Systems HMI and PLC Duplex Mode:
A Maple Systems HMI connects to a Maple Systems PLC through a network switch. Both devices rely on auto-negotiation to determine duplex mode. If the switch is set to full-duplex, communication remains smooth. However, if the switch is mistakenly configured to half-duplex, the HMI may experience collisions, delays, or dropped packets when communicating with the PLC. This can lead to slower data updates and unreliable performance.