R&S SMB Status Reporting System
1407.0806.32 5.25 E-2
Event Status Register (ESR) and Event Status Enable Register (ESE)
The ESR is defined in IEEE 488.2.The event status register can be read out using command "*ESR?".
The ESE is the associated ENABle part. It can be set using the command "*ESE" and read using the
command "*ESE?".
Meaning of the bits used in the event status register
Bit No. Meaning
0 Operation Complete
This bit is set on receipt of the command *OPC exactly when all previous commands have been executed.
1
not used
2 Query Error
This bit is set if either the controller wants to read data from the instrument without having sent a query, or if it
does not fetch requested data and sends new instructions to the instrument instead. The cause is often a query
which is faulty and hence cannot be executed.
3 Device-dependent Error
This bit is set if a device-dependent error occurs. An error message with a number between -300 and -399 or a
positive error number, which denotes the error in greater detail, is entered into the error queue.
4 Execution Error
This bit is set if a received command is syntactically correct but cannot be performed for other reasons. An error
message with a number between -200 and -300, which denotes the error in greater detail, is entered into the
error queue.
5 Command Error
This bit is set if a command which is undefined or syntactically incorrect is received. An error message with a
number between -100 and -200, which denotes the error in greater detail, is entered into the error queue.
6 User Request
This bit is set on pressing the LOCAL key, i.e., when the instrument is switched over to manual control.
7 Power On (supply voltage on)
This bit is set on switching on the instrument.
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