Anritsu MT8820A - Esr

Section 8 Remote Control Commands
8-14
*ESR?
Standard Event Status Register Query
Querying the standard event status register
Function
Queries the standard event status register. The event that occurred can be identified
depending on the read value.
Command
None
Query
*ESR?
Response
register
Parameters
register Standard event status register
Value = bit0 + bit1 + ... + bit7
bit0 = 2
0
= 1 : Operation complete
bit1 = 2
1
= 2 : Request control
bit2 = 2
2
= 4 : Query error
bit3 = 2
3
= 8 : Device error
bit4 = 2
4
= 16 : Execution error
bit5 = 2
5
= 32 : Command error
bit6 = 2
6
= 64 : User request
bit7 = 2
7
= 128 : Power On
Description
The sum of the values 2
0
= 1, 2
1
= 2, 2
2
= 4, 2
3
= 8, 2
4
= 16, 2
5
= 32, 2
6
= 64, and 2
7
=
128 becomes the parameter, which correspond to bits 1, 2, 3, 4, 5, 6 and 7 of the
standard event status register. When the response is read, the standard event status
register is cleared.
Sample programming
To read the standard event status register:
*ESR?