Agilent Technologies 33120A, Руководство пользователя

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DISPlay:TEXT?
Query the message sent to the front panel and return a quoted string.
For example, the query returns a string such as
"HELLO"
.
DISPlay:TEXT:CLEar
Clear the message displayed on the front panel.
SYSTem:BEEPer
Issue a single beep immediately.
SYSTem:ERRor?
Read one error from the error queue. When the front-panel
ERROR
annunciator turns on, one or more command syntax or hardware errors
have been detected. A record of up to 20 errors can be stored in the
function generator’s error queue.
See chapter 5, “Error Messages,” for a
complete listing of the errors.
œ
Errors are retrieved in first-in-first-out (
FIFO
) order. The first error
returned is the first error that was stored. When you have read all
errors from the queue, the
ERROR
annunciator turns off. The function
generator beeps once each time an error is generated.
œ
If more than 20 errors have occurred, the last error stored in the
queue (the most recent error) is replaced with
-350, “Too many errors” .
No additional errors are stored until you remove errors from the
queue. If no errors have occurred when you read the error queue,
the function generator responds with
+0, “No error” .
œ
The error queue is cleared when power has been off or after a
*CLS
(clear status) command has been executed. The
*RST
(reset)
command does not clear the error queue.
œ
Errors have the following format (the error string may contain
up to
80 characters ):
-113,"Undefined header"
4
Chapter 4 Remote Interface Reference
System-Related Commands
189