Knowledge base Automation Systems Human Machine Interfaces (HMI)

What Is The Difference In The Way That Serial Ports A And B Are Used On NT31/631 Programmable Terminals?

Modified on Sun, 11 May, 2025 at 10:13 PM

  • Either serial port A or serial port B may be used to connect to the host. Both ports cannot be simultaneously connected to a host.
  • Screen data transfer can be done only using serial port A. Serial port B cannot be used for screen data transfer.
  • For details, refer to NT31/NT31C Setup Manual or NT631/NT631C Setup Manual.
 
 

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