Hello.
I have a question about manipulating by oscilloscope MSO9404A from PC using Matlab and Infiniium Series Oscilloscopes IVI and MATLAB Instrument Drivers
http://www.keysight.com/main/software.jspx?ckey=1668582&lc=eng&cc=BY&nid=-32534.1150142&id=1668582
Particularly, it would be desirable to find out by what command I can switch trigger mode from "Auto" to "Triggered Mode" in the section "Trigger" and to set manually "Sample Rate" in the section "Acquisition" or to learn what algorithm is used for setting of sample rate with option "Auto".
Thanks in advance.
Hello,
I assume that you have looked through the Programming Manual before asking your questions:
' by what command I can switch trigger mode from "Auto" to "Triggered Mode" '
- :TRIGger:SWEep {AUTO | TRIGgered | SINGle}
' to set manually "Sample Rate" in the section "Acquisition" or to learn what algorithm is used for setting of sample rate with option "Auto"'
- :ACQuire:SRATe[:ANALog] {AUTO | MAX | <rate>}
- You should never use 'Auto' when programming the scope. You should always set you acquisition rate (SRATE), and depth (POINts), based on your needs. Auto is provided for GUI interaction with the scope, and it tells the scope to try to get the 'best' picture on the screen, while keeping the screen update rate high. If you start the scope running, and slowly turn the Horizontal knob, you will see that the depth increases for a while, keeping the sample rate high. At some point, the depth will stay fixed, and the sample rate will decrease. This increases the chance of aliasing, and other issues. I try to avoid using 'Auto' for either Sample rate or depth, even when I'm using the scope entirely through the GUI.
Al