I have written a LabView VI to work with my 4000 series PicoScope. It works fine as long as I set my Trigger Source to Channel A or Channel B. I found in the "pico4262 trigger" post that the channel number for the external trigger is 4, so I added that to the Trigger Source control. Unfortunately, I keep getting an "Error 5016 occurred at ps4000SetSimpleTrigger," which seems to indicate an invalid channel, when I try to use the external trigger input.
I went into the PS4000 Settings VI and tried to enable the External trigger channel, similarly to the way the other channels were enabled, using 4 for the channel number, but got the same error number at ps4000SetChannel.
What am I doing wrong?