79
Chapter 3, HP-IB Command Guidelines
Guidelines for Operation
Reading Back Display Units Setting.
Use the Display Units query command,
DUNits?, to read back the current Display Units setting. For example, the
following BASIC language program statements query the current Display Units
setting for the
TX Power
measurement:
!Query Display Units setting for TX Power measurement.
OUTPUT 714;"MEAS:RFR:POW:DUNits?"
!Enter the returned value into a string variable.
ENTER 714;A$
The returned units-of-measure will be whatever is shown on the Test Set’s front-
panel display for the TX Power measurement: dBm, V, mV, dBuV, or W. All
returned characters are in upper case. For example, if dBuV is displayed, DBUV
is returned.
Guidelines for Display Units
•
When querying a field’s setting or measurement result through HP-IB, the Test Set
always returns numeric values in HP-IB Units or Attribute Units, regardless of the
field’s current Display Units setting.
•
The Display Units for a field’s setting or measurement result can be set to any valid
unit-of-measure, regardless of the field’s HP-IB Units or Attribute Units.
•
The Display Units setting for a field’s setting is not affected when changing the field’s
value through HP-IB.
For example, if the
AFGen1 Freq
Display Units are set to kHz, and the command
AFG1:FREQ 10 HZ is sent to change AFGen1’s frequency to 10 Hz, the Test Set
displays
0.0100 kHz
; not 10 Hz.
Содержание 8921A
Страница 14: ...14 ...
Страница 17: ...Contents 17 3 HP IB Command Guidelines Sequential and Overlapped Commands 72 Guidelines for Operation 73 ...
Страница 24: ...Contents 24 9 Error Messages ...
Страница 25: ...Contents 25 Index 593 ...
Страница 26: ...Contents 26 ...
Страница 27: ...27 1 Using HP IB ...
Страница 58: ...58 Chapter 1 Using HP IB Remote Local Modes ...
Страница 59: ...59 2 Methods For Reading Measurement Results ...
Страница 71: ...71 3 HP IB Command Guidelines ...
Страница 94: ...94 Chapter 3 HP IB Command Guidelines Guidelines for Operation ...
Страница 95: ...95 4 HP IB Commands ...
Страница 100: ...100 Adjacent Channel Power ACP ...
Страница 150: ...150 Display DISPlay space TDMA test TESTs TFReq THLP TIBasic TMAKe TPARm TPRint TSEQn TSPec Returns current screen TX ...
Страница 173: ...173 System System SYSTem ERRor Returns integer value quoted string ...
Страница 236: ...236 Triggering Measurements ...
Страница 237: ...237 5 Advanced Operations ...
Страница 350: ...350 Chapter 6 Memory Cards Mass Storage Using Memory Cards Figure 20 Inserting a Memory Card ...
Страница 360: ...360 Chapter 6 Memory Cards Mass Storage Using External Disk Drives ...
Страница 361: ...361 7 IBASIC Controller ...
Страница 442: ...442 Chapter 7 IBASIC Controller The TESTS Subsystem ...
Страница 559: ...559 Chapter 8 Programming The Call Processing Subsystem Example Programs 11280 SUBEND 11290 ...
Страница 562: ...562 Chapter 8 Programming The Call Processing Subsystem Example Programs ...
Страница 563: ...563 9 Error Messages ...
Страница 592: ...592 ...