Teledyne LeCroy WaveAce 1000_2000 Remote Control - Manual (Page 60)

WaveAce Remote Control
STATUS - *ESR?
The *ESR? query reads and clears the contents of the Event Status Register (ESR). The response
represents the sum of the binary values of the register bits 0 to 7. The following table provides an
overview of the ESR register structure.
Query Syntax
*ESR?
Response Format
*ESR
:= 0 to 255
Response message:
*ESR 0
Related Commands
ALL_STATUS, *CLS, *ESE
ESR? Status Register Structure
Bit Value Name Description Note
15...8 0 - Reserved by IEEE 488.2.
7 128 PON 1 - Power OFF-to-ON
transition has occurred.
The Power On (PON) bit is always turned on (1) when the
unit is powered up.
6 64 URQ 1 - Not used. On older Teledyne LeCroy oscilloscopes, this bit reports soft
key inputs. It does not apply to WaveAce oscilloscopes.
5 32 CME 1 - CoMmand parser Error
has been detected.
The CoMmand parser Error bit (CME) is set true (1)
whenever a command syntax error is detected. The CME bit
has an associated CoMmand parser Register (CMR) which
specifies the error code. Refer to the query CMR? for
further details.
4 16 EXE 1 - EXecution Error
detected.
The EXecution Error bit (EXE) is set true (1) when a
command cannot be executed due to some device
condition (for example, the oscilloscope in local state) or a
semantic error. The EXE bit has an associated Execution
Error Register (EXR) that specifies the error code. Refer to
query EXR? for further details.
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