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Chapter 4 Remote Interface Reference
System-Related Commands
4
*IDN?
Read the function generator’s identification string which contains four
fields separated by commas. The first field is the manufacturer’s name,
the second field is the model number, the third field is the serial number,
and the fourth field is a revision code which contains four numbers
separated by dashes.
• The command returns a string with the following format (be sure to
dimension a string variable with at least 50 characters).
Agilent Technologies,33220A,<serial number>,
f.ff-b.bb-aa-p
DISPlay {OFF|ON}
DISPlay?
Disable or enable the function generator front-panel display. When it is
disabled, the front-panel display is blanked (however, the bulb used to
backlight the display remains enabled). The DISP? query returns “0”
(OFF) or “1” (ON).
•
With the front-panel display disabled, there will be some improvement
in command execution speed from the remote interface.
•
Sending a message to the front-panel display from the remote interface
(DISP:TEXT command) overrides the display state. This means that
you can display a message even if the display is disabled (remote
interface errors are always displayed even if the display is disabled).
• The display is automatically enabled when power is cycled, after an
instrument reset (*RST command), or when you return to local
(front panel) operation. Press the key or execute the IEEE-488
GTL (Go To Local) command from the remote interface to return to
the local state.
• The display state is saved when you store the instrument state using
*SAV command. When you recall the instrument state using *RCL
command, the front-panel display will return to the previous state.
f.ff = Firmware revision number
b.bb = Boot kernel revision number
aa = ASIC revision number
p = Printed circuit board revision number
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