RIGOL Chapter 2 Command System
2-4 DL3000 Programming Guide
*ESR?
Queries the event status register of the standard event status register.
Remarks The query returns a decimal value. It corresponds to the binary-weighted sum of all
the bits in the enable register part of the standard event status register. The
command also clears the status of the register. For the definitions for the bits in the
standard event status register and the decimal value that corresponds to the
binary-weighted value, refer to Table 1-2.
For example, if query error and execution error have occurred on the current
instrument, Bit 2 (query error) and Bit 4 (execution error) in the event register part of
the standard event status register will be set to 1. At this time, when you run the
command, it returns 20 (based on the formula: 2
2
+ 2
4
= 20).
The bit in the event register part of the standard event status register is latched, and
reading the event register part will clear it. You can also send the
*CLS command to
Return
Returns a decimal value. It corresponds to the binary-weighted sum of all the bits in the
event register part of the standard event status register. For example, 20.
Example *ESR? /*Queries the event register part of the standard event status register. The
Related
*CLS
*IDN?
Queries the instrument information.
Return
Format
Returns the instrument information in strings, which includes four parts: manufacturer,
model number, serial number, and the version number of the digital board. The four parts
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