Inter Byte Delay in Serial Communication

Updated Jun 5, 2018

Reported In

Hardware

  • PCIe-8431/8

Driver

  • NI-VISA
  • NI-Serial

Issue Details

I am using an NI Serial board to perform communication with the RS-485 protocol. Occasionally, I am seeing delays between output bytes. How can I prevent this delay?

Solution

The RS-485 communication protocol specifies that communication will occur at a specific baud rate, but not that this communication happens continuously. The time between packets of data is not specified, and depends on the UARTs being used.

Other Support Options

Ask the NI Community

Collaborate with other users in our discussion forums



Request Support from an Engineer

A valid service agreement may be required, and support options vary by country.