Keysight Technologies 3458A Guide D'utilisation page 276

6 Command Reference
Input buffer. Enables or disables the multimeter's input buffer. When enabled,
the input buffer temporarily stores the commands it receives over the GPIB bus.
This releases the bus immediately after a command is received, allowing the
controller to perform other tasks while the multimeter executes the stored
command.
Syntax
INBUF [control]
control
The control parameter choices are:
control
parameter
OFF
ON
Power-on control = OFF.
Default control = ON.
Remarks
– Turning the input buffer OFF causes a minor degradation in speed
– Turning the input buffer ON causes the multimeter to buffer (store) incoming
276
Numeric
query equiv.
0
1
performance, but is useful for synchronizing bus activity. With the input buffer
OFF, the multimeter accepts only one command at a time and does not release
the bus until it has finished executing that command. This ensures that
subsequent commands sent to other bus devices cannot be executed until the
multimeter has finished executing its command(s).
messages and release the GPIB bus as soon as message transmission is
complete. This allows the controller to communicate with other bus devices
while the multimeter executes its command(s). However, synchronization with
other bus devices may be lost if they execute their instructions before the
multimeter finishes its instructions. In this case, the ready bit in the status
Description
Disables the input buffer; commands are accepted only when the
multimeter is not busy
Enables the input buffer; commands are stored, releasing the bus
immediately
Keysight 3458A User's Guide