Hi
I'm currently trying to make some remote measurements (via USB) on a pair of repetitive waveforms using a Tek MSO4104. They occur about once a second and I want to measure the time interval between them (CH1 to CH3). This is easy to do manually and then read the data off the screen, but I want to do it many thousands of times during an extended test and log the results and I don't want to miss any events. So I need to do this via USB or GPIB. I'm currently using USB and I can control the scope remotely just fine over USB for most commands.
However, I'm struggling to get this measurement process to work properly when doing it remotely. This initially appeared to be a simple task, but I can't work out how to ask the scope to make a measurement at the relevant time and to then report it back to my PC via USB. I assume I have to use the *OPC or BUSY or *WAI commands and let the PC wait for the scope to spit out the measurement data. I've set a suitably long timeout.
I've tried normal trigger mode and single shot. Has anyone done this kind of thing before? I assume I either have to poll the event status register or find some way of getting the scope to time everything and then spit out the result via USB.
Thanks in advance for any replies :)
