More About Oscilloscope Commands
41
Keysight InfiniiVision 3000T X-Series Oscilloscopes Programmer's Guide
1283
Query Return Values
Command headers immediately followed by a question mark (?) are queries.
Queries are used to get results of measurements made by the instrument or to find
out how the instrument is currently configured.
After receiving a query, the instrument interrogates the requested function and
places the answer in its output queue. The answer remains in the output queue
until it is read or another command is issued.
When read, the answer is transmitted across the bus to the designated listener
(typically a controller). For example, the query :TIMebase:RANGe? places the
current time base setting in the output queue. When using the Keysight VISA COM
library in Visual Basic, the controller statements:
Dim strQueryResult As String
myScope.WriteString ":TIMebase:RANGe?"
strQueryResult = myScope.ReadString
pass the value across the bus to the controller and place it in the variable
strQueryResult.
Infinity
Representation
The representation of infinity is +9.9E+37. This is also the value returned when a
measurement cannot be made.
NOTE
Read Query Results Before Sending Another Command
. Sending another command or query
before reading the result of a query clears the output buffer (the current response) and places
a Query INTERRUPTED error in the error queue.
Содержание InfiniiVision 3000T X Series
Страница 1: ...Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide...
Страница 40: ...40 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 1 What s New...
Страница 50: ...50 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 2 Setting Up...
Страница 64: ...64 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 3 Getting Started...
Страница 164: ...164 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 4 Commands Quick Reference...
Страница 254: ...254 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 8 BUS n Commands...
Страница 286: ...286 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 10 CHANnel n Commands...
Страница 306: ...306 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 12 DEMO Commands...
Страница 314: ...314 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 13 DIGital d Commands...
Страница 344: ...344 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 16 EXTernal Trigger Commands...
Страница 352: ...352 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 17 FFT Commands FFT WINDow on page 362...
Страница 364: ...364 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 17 FFT Commands...
Страница 402: ...402 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 18 FUNCtion m Commands...
Страница 420: ...420 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 19 HARDcopy Commands...
Страница 442: ...442 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 21 MARKer Commands...
Страница 466: ...466 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 22 MEASure Commands MEASure CLEar on page 464...
Страница 524: ...524 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 22 MEASure Commands...
Страница 548: ...548 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 23 MEASure Power Commands...
Страница 656: ...656 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 26 POWer Commands...
Страница 666: ...666 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 27 RECall Commands...
Страница 888: ...888 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 29 SBUS n Commands...
Страница 978: ...978 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 30 SEARch Commands...
Страница 1006: ...1006 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 32 TIMebase Commands...
Страница 1232: ...1232 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 37 Obsolete and Discontinued Commands...
Страница 1240: ...1240 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 38 Error Messages...
Страница 1264: ...1264 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 39 Status Reporting...
Страница 1274: ...1274 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 40 Synchronizing Acquisitions...
Страница 1404: ...1404 Keysight InfiniiVision 3000T X Series Oscilloscopes Programmer s Guide 42 Programming Examples...