5-87
IM 760151-17E
Commands
5
5.20 Common Command Group
The commands in the common group are defined in the IEEE488.2-1987 and are independent of the instrument’s
functions.There are no front panel keys that correspond to the commands in this group.
*CAL
*CLS
*ESE
<Space>
<NRf>
?
*ESR
?
?
*IDN
?
*OPC
*OPC
?
*OPT
?
*PSC
<Space>
<NRf>
?
*RST
*SRE
<Space>
<NRf>
?
*STB
?
*TRG
*TST
?
*WAI
;
*ESE
(standard Event Status Enable register)
Function
Sets the standard event enable register or
queries the current setting.
Syntax
*ESE {<NRf>}
*ESE?
<NRf>
= 0 to 255
Example
*ESE 251
*ESE? -> 251
Description • Specify the value as a sum of decimal values
of each bit.
• For example, specifying “*ESE 251” will
cause the standard enable register to be set
to “11111011.” In this case, bit 2 of the
standard event register is disabled which
means that bit 5 (ESB) of the status byte
register is not set to “1,” even if a “query
error” occurs.
• The default value is “*ESE 0” (all bits
disabled).
• A query using *ESE? will not clear the
contents of the standard event enable
register.
• For details on the standard event enable
register, see page 6-3.
*CAL?
(CALibrate)
Function
Executes zero calibration (zero level
compensation, same operation as pressing CAL
(SHIFT+MEASURE)) and queries the result.
Syntax
*CAL?
Example
*CAL? -> 0
Description If the calibration terminates normally, “0” is
returned. If abnormality is detected, “1” is
returned.
*CLS
(CLear Status)
Function
Clears the standard event register, extended
event register, and error queue.
Syntax
*CLS
Example
*CLS
Description • If the *CLS command is located immediately
after the program message terminator, the
output queue is also cleared.
• For details on the register and queue, see
chapter 6.