Archived:NHR System Only Responds to *IDN? Command in SCPI

Issue Details

I'm trying to communicate with an NHR instrument using SCPI, however, the instrument is responding to *IDN? without issues, but other queries or commands return "Error:\sUnknown\sCommand\00", the instrument can be controlled using a remote PC with the NHR software installed, and the IP address is properly detected in NI-MAX. 

Solution

NHR devices require SCPI over TCP communication, when the resource is added to a host PC using NI-MAX, the default option creates a VXI-11 session. To address this issue, create a Raw Socket following these steps:

• Open NI-MAX and go to Devices and Interfaces >> Network Device >> Add Network Device >> VISA TCP/IP Resource:

• In the popup window, select Manual Entry of Raw Socket and click Next:

• Enter the IP address of the NHR instrument and set the port number to 5025:

• Click Finish.

Below is an example of a properly configured device in NI-MAX:

If the issue persists, contact NI Technical Support to continue the troubleshooting.