7½ Digit Graphical Sampling Multimeter Reference Manual Section 3:
DMM7510-901-01 Rev. B / May 2015 3-35
If you switch to front-panel control to take readings after selecting or creating a writable buffer, be
sure that you select a buffer that is not of the writable style to be the active buffer before you try to
store readings. Writable buffers are for manual entry of user-supplied data only and do not store
readings measured by the instrument.
To create a writable reading buffer named extData with a capacity of 20 readings, send the
following SCPI or TSP command.
Using SCPI commands:
TRACe:MAKE "extData", 20, WRITable
Using TSP commands:
extData = buffer.make(20, buffer.STYLE_WRITABLE)
To populate a writable reading buffer, you set the format of the units and the unit values for each
buffer index using the following commands:
:TRACe:WRITe:FORMat (on page 6-173) and :TRACe:WRITe:READing (on page 6-175) (SCPI)
buffer.write.format() (on page 8-43) and buffer.write.reading() (on page 8-45) (TSP)
After you have populated a writable buffer, you can view the data on your computer from the Model
DMM7510 Virtual Front Panel or on the front-panel graph screen.
Using graphing through the virtual front panel requires significant system resources and may slow
instrument operation.
To view the data in the writable buffer on the front-panel graph screen:
1. Press the MENU key.
2. Under Views, select Graph. By default, time is plotted on the x-axis.
You can compare the external data to data in another buffer by adding an additional trace to the
graph. For more information about graphing data, see Graphing (on page 2-141
).
Saving front-panel settings into a macro script
You can save some settings made through the front panel into a macro script that you can run later.
• The settings that are saved include any settings made through Measure menu Settings,
Calculations, Config Lists, Reading Buffers, and QuickSet (except the Performance slider, which
cannot be used when recording a macro)
• Trigger menu options Templates and Configure
• The Graph Trigger tab
• System Communication
• Time and date
• Auto calibration schedule options
Only settings are stored; no front-panel only options or key presses are stored.
It also saves the reading format, access mode, and system reset settings.
Macro scripts are limited to 10 kB.
To Next Page
Loading...
Need help?
General
