Status Structure 8-21
On power-up, all error messages are enabled and will go into the error queue as they occur.
Status messages are not enabled and will not go into the queue. As listed in Table 8-6, there are
commands to enable and/or disable messages. For these com
mands, the <list> parameter is used
to specify which messages to enable or disable. The messages are specified by their codes. The
following examples show various forms for using the <list> parameter.
<list> = (-110) Single message
= (-110:-222) Range of messa
ges (-110 through -222)
= (-110:-222, -220) Range entry and single entry (separated by a comma)
When you enable messages, messages not specified in the list are disabled. When you disable
messag
es, each listed message is removed from the enabled list.
NOTE T
o prevent all messages from entering the error queue, send the enable command
along with the null list parameter as follows: STATus:QUEue:ENABle ().
Table 8-6
SCPI commands — error queue
Command Description Default
STATus
:QUEue
[:NEXT]?
:ENABle <list>
:ENABle?
:DISable <list>
:DISable?
:CLEar
STATus subsystem:
Read error queue:
Read and clear oldest error/status message.
Specify error and status messages for error queue.
Read the enabled messages.
Specify messages not to be placed in queue.
Read the disabled messages.
Clear messages from error queue.
(Note 1)
(Note 2)
(Note 2)
SYSTem
:ERRor?
:CLEar
SYSTem subsystem:
Read error queue:
Clear messages from error queue.
(Note 1)
Notes:
1. Power-up and *CLS empties the error
queue. STATus:PRESet has no effect.
2. Power-up enables error messages and disables status
messages. *CLS and STATus:PRESet have no effect.
Programming example — read error queue
STAT:QUE:ENAB (+000:+900) ‘ Enable all Keithley defined messages (dis-
able all SCPI defined messages).
STAT:QUE? ‘ Return oldest message.
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