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2
IEEE-488 Command Reference
*ESR?
The *ESR? query reads the event register of the Standard Event register group and
returns a decimal value which corresponds to the binary-weighted sum of all bits
set in the register. The return format is <NR1> in the range of 0 to 255. The bits are
cleared by executing this query or *CLS.
The following table lists the bit definitions for the Standard Event register:
Table 2-2
Bit
0
1
2
3
4
5
6
7
Refer to
Syntax
Example
*ESR?
124
Bit definitions: Standard Event register
Weight/Decimal value
1
2
4
8
16
32
64
128
"Standard Event register"
*ESR
?
Returns the bits currently set in the event register.
Definition
Operation complete
Not used
Query error
Device-dependent error
Execution error
Command error
User request
Power on
on page 106 for more details.
Keysight N432A Programming Guide
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