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ABORt
The ABORt command stops a scan in progress when the trigger sources
are either TRIGger:SOURce BUS or TRIGger:SOURce HOLD. See the
comments to stop a scan if trigger source is not BUS or HOLD.
Subsystem Syntax
Comments
ABORt
Channel Status After an ABORt: ABORting a scan will leave the last
channel that it closed in the closed position.
Effect on Scan Complete Status Bit: ABORting a scan will not set the
"scan complete" status bit.
Stopping Scans Enabled from GPIB Interface: When a scan is enabled
from the GPIB interface, and the trigger source is not HOLD or BUS, you
can clear the interface to stop the scan (in the BASIC programming
language, this is done by executing the CLEAR command for your
interface (such as CLEAR 7).
When the scan is enabled from the GPIB interface and the trigger source
is TRIGger:SOURce BUS or TRIGger:SOURce HOLD, send the ABORt
command over the GPIB bus.
NOTE
Clearing the GPIB interface during a scan leaves the last channel the
scan closed in the closed position and does not set the "scan complete"
status bit.
Stopping Scans by Using the RS-232 Terminal: You may use a terminal
connected to the E1406 Command Module to stop any scan.
If the scan was started from the terminal, and the trigger source is HOLD
or BUS, send the ABORt command to halt the scan. If the scan was
started from the terminal and some other trigger source is being used, a
Ctrl+C will send an interface CLEAR to the instrument and abort the scan.
Sending Ctrl+R also sends an interface CLEAR to the instrument and
additionally performs a reset (*RST) on the instrument. (See the
Command Reference in the command module’s user’s manual for details
on the terminal interface.)
If the scan was started from the GPIB interface but you want to stop it by
using the terminal, first make sure that the correct instrument (SWITCH
at desired logical address) is selected by using the terminal soft keys.
Then, send a Ctrl+R. This will send an interface CLEAR to the GPIB task,
but will not place the instrument in the reset state with respect to the
GPIB task. These actions will occur regardless of the trigger source
setting.
54 E1442A Command Reference
Chapter 3