3-8
3.3.7 :DATA?
(:CALibration:PROTected:DATA?)
Purpose
To download calibration constants from the Model 6517A.
Format
:cal:prot:data?
Response
<Cal_1>,<Cal_2>,...<Cal_n>
Description
The :DATA? query allows you to request calibration constants stored in EEROM from the
instrument. This command can be used to compare present constants with those from a previous
calibration procedure to verify that calibration was performed properly. The returned values are
floating-point ASCII numbers delimited by commas (,).
Programming Note
See Appendix B for summary of constants returned by the :DATA? query.
Example
:CAL:PROT:DATA?
Request calibration constants.
3.3.8 :OPT?
(:CALibration:UNPRotected:OPTion?)
Purpose
To detect the presence of the optional calibration standard.
Format
:cal:prot:opt?
Response
0
Cal standard not present
5156-CALOPT
Cal standard present
Description
The :OPT? query allows you to determine whether or not the optional Model 5156 Electrometer
Calibration Standard is connected to the Model 6517A DIGITAL I/O port. The unit will respond
with the appropriate string depending on whether or not the calibration standard is connected
and operational.
Example
:CAL:PROT:OPT?
Request option presence status.
3.3.9 :CALTEMP
(:CALibration:PROTected:CALTEMP)
Purpose
To acquire the calibration temperature.
Format
:cal:prot:caltemp
Response
None
Description
The :CALTEMP command acquires the temperature at which the Model 6517A was calibrated.
The command should be sent without the thermocouple connected to the Model 6517A and may
be issued at any point during calibration. When calibrating from the front panel, the calibration
temperature will be acquired when the calibration dates and constants are saved. (This command
is supported with main firmware revision level B07 or later.)
Example
:CAL:PROT:CALTEMP
Acquire calibration temperature.