Keysight Technologies 86120B, User Manual

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Programming Commands
Common Commands
Syntax *ESR?
Description When you read the standard event status register, the value returned is the total of
the bit weights of all of the bits that are set to one at the time you read the byte. The
following table shows each bit in the event status register and its bit weight. The
register is cleared when it is read.
Query Response <integer> ranges from 0 to 255.
Table 5-15. Standard Event Status Register
Bit Bit Weight Condition
7 128 PON – Power On
6 64 Not Used
5 32 CME – Command Error
4 16 EXE – Execution Error
3 8 DDE – Device Dependent Error
2 4 QYE – Query Error
1 2 Not Used
0 1 OPC – Operation Complete