Programming Examples
40
Keysight InfiniiVision M9241/42/43A PXIe Oscilloscopes SCPI Programmer's Guide
1389
// Set trigger mode (EDGE, PULSe, PATTern, etc., and input source.
myScope.DoCommand(":TRIGger:MODE EDGE");
Console.WriteLine("Trigger mode: {0}",
myScope.DoQueryString(":TRIGger:MODE?"));
// Set EDGE trigger parameters.
myScope.DoCommand(":TRIGger:EDGE:SOURce CHANnel1");
Console.WriteLine("Trigger edge source: {0}",
myScope.DoQueryString(":TRIGger:EDGE:SOURce?"));
myScope.DoCommand(":TRIGger:EDGE:LEVel 1.5");
Console.WriteLine("Trigger edge level: {0}",
myScope.DoQueryString(":TRIGger:EDGE:LEVel?"));
myScope.DoCommand(":TRIGger:EDGE:SLOPe POSitive");
Console.WriteLine("Trigger edge slope: {0}",
myScope.DoQueryString(":TRIGger:EDGE:SLOPe?"));
// Save oscilloscope configuration.
byte[] ResultsArray;
// Results array.
int nLength;
// Number of bytes returned from instrument.
string strPath;
// Query and read setup string.
ResultsArray = myScope.DoQueryIEEEBlock(":SYSTem:SETup?");
nLength = ResultsArray.Length;
// Write setup string to file.
strPath = "c:\\scope\\config\\setup.stp";
FileStream fStream = File.Open(strPath, FileMode.Create);
fStream.Write(ResultsArray, 0, nLength);
fStream.Close();
Console.WriteLine("Setup bytes saved: {0}", nLength);
// Change settings with individual commands:
// Set vertical scale and offset.
myScope.DoCommand(":CHANnel1:SCALe 0.05");
Console.WriteLine("Channel 1 vertical scale: {0}",
myScope.DoQueryString(":CHANnel1:SCALe?"));
myScope.DoCommand(":CHANnel1:OFFSet -1.5");
Console.WriteLine("Channel 1 vertical offset: {0}",
myScope.DoQueryString(":CHANnel1:OFFSet?"));
// Set horizontal scale and offset.
myScope.DoCommand(":TIMebase:SCALe 0.0002");
Console.WriteLine("Timebase scale: {0}",
myScope.DoQueryString(":TIMebase:SCALe?"));
myScope.DoCommand(":TIMebase:POSition 0.0");
Console.WriteLine("Timebase position: {0}",
myScope.DoQueryString(":TIMebase:POSition?"));
// Set the acquisition type (NORMal, PEAK, AVERage, or HRESolution
).
