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Chapter 5 Remote Interface Reference
System-Level Control Commands
4
5
DIAGnostic
:MONitor <slot>|<channel>|<port>|-1
:MONitor?
The DIAGnostic:MONitor command enables the monitor mode for a
plug-in module, channel, or port on the specified module. Send the -1
value to disable the monitor mode. Only one slot, one channel, or one
port can be monitored each time. More information about monitoring is
given on page 80.
For the built-in 4-bit Digital I/O, you may monitor the port (090) or bits
(091 to 094). For the plug-in DIO modules, you may only monitor the 8-
bit ports.
The Tree Relays (s98, s99) on an N2260A or N2266A cannot be
monitored.
The monitor is disabled after an instrument power-on or a reset
command.
The DIAGnostic:MONitor? query returns the slot, channel, or port
being monitored. The returned value will be a valid slot number or
channel address. A “-1” is returned if monitor is inactive.
SYSMODE <0|1|SCPI|HP3488>
SYSMODE?
The 3499A/B/C can be operated in either one of the two system modes:
SCPI mode and 3488A mode. The SYSMODE command specifies the
system mode to use. Changing the mode will reset the 3499A/B/C
(see page 74), but the RS232 or GPIB settings will not be affected.
If you change modes with this command, you must allow a minimum 5
second interval before performing other operations.
The SYSMODE? query returns a string containing either “SCPI” or
“HP3488A”.
For information about the 3488 programming mode please visit
www.agilent.com.
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