Hi, I am having trouble communicating to the NI GPIB-RS232 converter box - http://www.ni.com/en-us/support/model.gpib-rs232.html
I can connect and configure the converter when in Config mode using the NI GPIB-Serial Converter Wizard. When I test in both MAX and LabView, I get a good response when sending a *IDN?\n to the box (attached screenshot). The problem comes when using the same settings when the converter is changed to Normal mode - I get no response from the box with the same connection using the same programs (MAX/LabView).
My current setup is simply using a USB-RS232 dongle to connect to the serial port on the converter box. This will control an instrument over GPIB.
Ultimately I want to use the RS232 port on my CompactRIO chassis (9064) to do this (yes, I'm aware GPIB is not real-time and generally not recommended for embedded use, I'm OK with that). But that's down the road, I want to talk to the converter first directly.
Thanks in advance,
Don