Keithley S46 Instruction Manual page 49

3-14 Operation
:ERRor?
NOTE
Description
:VERsion?
Description
:CLEar
Description
Query
:SNUMber?
Description
S46-901-01 Rev. C / January 2006
The :SYST:ERR? is equivalent to the :STATus:QUEue:NEXT? command. See
the STATus subsystem for more information.
Use this query to read messages placed in the error queue. For example,
send:
:SYST:ERR?
After this command is sent and the S46/S46T is addressed to talk, the
"oldest" message in the queue is sent to the computer.
The queue holds up to 10 messages. The error queue is a FIFO (first-in,
first-out) register. Every time the error queue is queried, the oldest
message is read and removed from the queue. If the error queue
becomes full, the message "350, 'Queue Overflow' " will occupy the
last memory location in the register. On power up, the error queue is
empty. If empty, the message "0, 'No Error' " is placed in the error
queue. The messages in the error queue are preceded by a number. Refer
to Table 3-9 for a listing of error numbers and messages.
Use this query to read the version of the SCPI standard being used by
the S46/S46T. For example, send:
:SYST:VER?
Use this command to clear all messages from the error queue. For
example, send:
:SYST:CLE
No query form of this command exists.
Use this query to read the S46/S46T serial number. For example, send:
:SYST:SNUM
S46/S46T Microwave Switch System Instruction Manual
Query most recent error
Query SCPI version
Clear all messages from the error queue
Query the serial number