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More About Oscilloscope Commands
38
Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide
1095
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
Agilent 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.
N O T E
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 3000 X-Series
Страница 1: ...s1 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide...
Страница 30: ...30 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide...
Страница 54: ...54 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 2 Setting Up...
Страница 68: ...68 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 3 Getting Started...
Страница 152: ...152 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 4 Commands Quick Reference...
Страница 218: ...218 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 6 Root Commands...
Страница 242: ...242 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 8 BUS n Commands...
Страница 280: ...280 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 11 DEMO Commands...
Страница 288: ...288 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 12 DIGital d Commands...
Страница 306: ...306 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 14 EXTernal Trigger Commands...
Страница 340: ...340 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 15 FUNCtion Commands...
Страница 358: ...358 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 16 HARDcopy Commands...
Страница 378: ...378 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 18 MARKer Commands...
Страница 446: ...446 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 19 MEASure Commands...
Страница 466: ...466 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 20 MEASure Power Commands...
Страница 502: ...502 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 22 POD Commands POD1 DISP 0 THR 1 40E 00...
Страница 564: ...564 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 23 POWer Commands...
Страница 842: ...842 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 29 TIMebase Commands...
Страница 1046: ...1046 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 34 Obsolete and Discontinued Commands...
Страница 1054: ...1054 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 35 Error Messages...
Страница 1076: ...1076 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 36 Status Reporting...
Страница 1086: ...1086 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 37 Synchronizing Acquisitions...
Страница 1216: ...1216 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 39 Programming Examples...
Страница 1231: ...Index Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide 1231 zoomed window horizontal scale 841...
Страница 1232: ...1232 Agilent InfiniiVision 3000 X Series Oscilloscopes Programmer s Guide Index...