Error (Hex 0xBFFF0015) Occur When Using NI-9870 in VISA Test Panel

Updated May 17, 2023

Issue Details

I m using NI-9870 with RS485 to perform a loopback test, I got an error shown below while using VISA test panel in NI MAX. Why is this happen?
Error Hex 0xBFFF0015

Solution

NI-9870 does not support serial protocol for RS485 but only RS232.