Most midrange scopes from this period had gpib as an option but had all the commands for full remote operation and control. Posted in Tool Hacks Tagged agilent, oscilloscope, rs232, scpi, serial Post navigation The cheap Rigol and similar scopes usually have SCPI and you can control and read them using the same kind of techniques. That also means if you are in the mood to communicate with an SCPI scope, you might find the code useful, even if you don’t use a serial port or have this exact Agilent model. Many scopes speak that language, so that’s not surprising. The command set looks suspiciously like SCPI - Standard Commands for Programmable Instruments - which is a layer on top of the GPIB protocol. However, it did make reference to an older model that was also similar and that was the key to finding a manual that did explain the serial port protocol.
That manual wasn’t too helpful since it assumed you were connecting via a LAN or USB.
Searching didn’t turn up much on the serial port, but it did locate a manual for a similar Agilent scope. Normally, you’d use the included BenchLinkXL software to grab data from the port, but that software is so old it would not run under Windows 10 or Wine. It is, and what results is a nice walkthrough of finding the port’s info and interfacing with it using Python. Surely it was possible to read data from there. At one time, it was high-tech to use a disk to transfer scope data to your computer. When picked up an Agilent 54621A scope, he was amused that it had a floppy disk.
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