Section 6: 9100 System Operation — SCPI Language
6-63
Final Width = 215mm
6.7.6
Calibration
The calibration commands available to the user are the normal SCPI extensions:
For use on the factory calibration system only, three "hidden commands" are used.
6.7.6.1
A command to turn off one (either) channel.
This will be used in calibration and verification. The result will be to set the appropriate DAC to zero, while otherwise leaving the
channel connected.
6.7.6.2
Current routing.
A command to route the Auxiliary current o/p via the guarded (D-type) terminals, provided it is less than 2 Amps. This is
primarily used in calibration and verification.
A user performing manual cal will not have the factory cal system and will be using standard 4mm leads only. These IEEE
commands are not duplicated on the front panel.
6.7.6.3
Voltage Routing
A command to route the auxiliary voltage to the High and Low terminals. A user performing manual cal will not have the
factory cal system and does not need this command.
6.7.7
IEEE488.2 COMMON COMMANDS
This section briefly outlines the mandatory IEEE 488.2 commands.
6.7.7.1
*OPT?
This command returns a string of comma separated characters. A '1' indicates an option is fitted, a '0', that the option is not
fitted.
The meaning of the characters is position dependent:
x6,x5,x4,x3,x2,x1
where x1 indicates option 250 (250 MHz scope option).
where x2 indicates option 100 (High stability crystal reference).
where x3 indicates option 600 (600 MHz scope option).
where x4 indicates option 135 (High voltage resistance option).
where x5 indicates option
PWR
(Power option).
where x6 is reserved for future use.
