Agilent Technologies B1500A Service Manual Page 373

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Agilent B1500A/B1505A Programming Guide, Edition 11 4-57
Command Reference
*CAL?
The *OPC? command should be entered after this command to confirm the
completion of the self-calibration.
Module condition after this command is the same as the condition by the CL
command.
Execution
Conditions
No SMU may be in the high voltage state (forcing more than the allowable voltage
for the interlock open condition, or voltage compliance set to more than it).
Before starting the calibration, open the measurement terminals.
Syntax CA [slot]
Parameters slot : Slot number where the module under self-calibration has been installed.
1 to 10. Integer expression. If slot is not specified, the self-calibration is
performed for the mainframe and all modules.
If slot specifies the slot that installs no module, this command causes an error.
Example
Statements
OUTPUT @B1500;"CA"
OUTPUT @B1500;"*OPC?"
ENTER @B1500;A
NOTE To send CA command to Agilent B1500 installed with ASU
If you send the CA command to the B1500 installed with the ASU (Atto Sense and
Switch Unit), the B1500 executes the self-calibration and the 1 pA range offset
measurement for the measurement channels connected to the ASUs. The offset data
is temporarily memorized until the B1500 is turned off, and is used for the
compensation of the data measured by the 1 pA range of the channels. The B1500
performs the data compensation automatically and returns the compensated data.
Since the B1500 is turned on, if you do not send the CA command, the B1500
performs the data compensation by using the pre-stored offset data.
Remarks Failed modules are disabled, and can only be enabled by the RCV command.
*CAL?
This query command performs the self-calibration, and returns the results. After this
command, read the results soon.
Module condition after this command is the same as the condition by the CL
command.
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