Section 7: SCPI command reference
Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
7-4
077114601 / March 2019
*ESR?
This command reads the contents of the Standard Event Status Register (SESR).
Type
Affected by
Where saved
Default value
Query only
Not applicable
Not applicable
Not applicable
Usage
*ESR?
Details
The instrument returns a decimal value that corresponds to the binary-weighted sum of all bits set in
the register and clears the Standard Event Status Register.
Example
*ESR?
Query the contents of the Standard Event Status
Register (SESR).
Example output:
145
This output indicates that the SESR contains the binary
value
10010001
.
Also see
(on page 7-3)
(on page D-1)
*IDN?
This command retrieves the identification string of the instrument.
Type
Affected by
Where saved
Default value
Query only
None
Not applicable
Not applicable
Usage
*IDN?
Details
The identification string includes the manufacturer, model number, serial number, and firmware
revision of the instrument. The string is formatted as follows:
KEITHLEY INSTRUMENTS,MODEL nnnn,xxxxxxx,yyyyy
Where:
nnnn
= The model number
xxxxxxx
= The serial number
yyyyy
= The firmware revision level
