8250A Optical Power Meter Operation Manual
4.5 Status Register
4-15
Conditions which clear the standard event status register
•
When the power is turned on.
•
When the *CLS command is executed.
•
When the *ESR? command is executed.
Conditions which clear the standard event status enable register
•
When the power is turned on.
•
When the *ESE0 command is executed.
Table 4-5 Standard Event Status Register
bit
Name
Description
0
OPC
Operation Complete
ON: This bit is set to 1 if all operations are complete after receiving
the *OPC command.
1
Not used
Fixed to 0
2
Not used
Fixed to 0
3
DDE
Device Dependent
Error
ON: This bit is set to 1 if an error, which depends on the device,
occurs.
4
EXE
Execution Error
ON: This bit is set to 1 if the received command cannot be exe-
cuted.This bit is set to 1 if the command parameter contains an
error.
5
CME
Command Error
ON: This bit is set to 1 if the received command syntax is incorrect.
6
Not used
Fixed to 0
7
PON
Power On
ON: This bit is set to 1 when the power is turned on.
