Specifications

Operating Manual SEFRAM 4451
M4451 A00
40
Bit 3: Device-Specific Error (DDE). This bit is set to indicate that a device operation
did not execute due to some device condition.
Bit 4: Execution Error (EXE). This bit is set when the device could not execute a
command, due to the command being outside of it's capabilities. For example, a
parameter being out of range.
Bit 5: Command Error (CME). This bit is set to indicate an error in the command
syntax.
Bit 6: User Request (URQ). This bit is not used by the SEFRAM 4451.
Bit 7: Power On (PON). This bit is set when the device is powered on.
The SESR is queried using the *ESR? common query.
The SESR is paired with an enable register, the Standard Event Status Enable Register
(SESER). This register enables one or more events in the SESR to be reflected in the Status
Byte ESB summary message bit. The bits of the SESER correspond to those of the SESR.
Setting a bit in the SESER enables the corresponding event to set the ESB bit when it occurs.
The SESER is set with the *ESE common command and queried with the *ESE? command
query.
4.10.4 The Error Queue
The error queue is used to store codes of errors detected in the device. It is implemented as a
cyclic buffer of length 10. When the error queue is not empty, bit EVQ in the Status Byte is set.
The error queue is read with either one of the following two queries:
:SYSTEM:ERROR?
:STATUS:QUEUE:NEXT?
The first error in the queue is returned, and the queue is advanced.
4.10.5 Error Codes
The negative error codes are defined by SCPI. Positive codes are specific to the PG. The error
message is returned in the following form:
<error number>,"<error description>"
A table of error numbers and their descriptions is presented here.
No error reported
0 No error