I'm trying to change the frequency and amplitude of the E4426B Signal Generator remotely, but I can't for the life of me figure out these commands. The device shows up in NI Max and I can open an "Interactive Control" with it, but none of the commands get me anywhere. I tried to use "ibcmd" but I get an ECIC error because "The interface is not the Controller-In-Charge", then I fix that with a command and get an ENOL error because "No listeners are on the GPIB," which doesn't make sense to me. The GPIB address of the sig gen is 1, and in the GPIB Settings in NI Max the Primary Address is also 1. I realize this device is very old but I have nowhere else to go. Any help would be appreciated.
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