Keysight E1412A, User'S Manual And Scpi Programming Manual, Page: 195 / 243

Keysight E1412A Digital Multimeter User Guide cxcv
TRIGger Multimeter Command Reference
Comments
–
The TRIGger:SOURce command only selects the trigger source. You must
use the INITiate command to place the multimeter in the wait-for-trigger
state. (The MEASure command automatically executes an INITiate
command.)
– TRIGger:SOURce EXT uses the multimeter's front panel “Trig” BNC
connector as the trigger source. The multimeter triggers on the falling
(negative-going) edge of a ±5V TTL input signal; (maximum input is +5V to
the front panel BNC connector).
–
TRIGger:IMMediate causes a trigger to occur immediately provided the
multimeter is placed in the wait-for-trigger state using INITiate , READ? or
MEAS? .
–
When a Group Execute Trigger (GET) bus command or *TRG common
command is executed and the multimeter is not in the wait-for-trigger
state, the “Trigger ignored” error is generated.
–
The CONFigure and MEASure command subsystems automatically set the
trigger source to TRIG:SOUR IMM .
– The READ? command cannot be used if the trigger source is
TRIG:SOUR BUS .
–
Related Commands: INITiate , READ? , MEAS?
– *RST
Condition: TRIG:SOUR IMM
Example
Set the Sample Source
CONF:VOLT:DC Function: DC voltage.
TRIG:SOUR EXT Trigger source is external BNC on
multimeter front panel.
TRIG:COUN 10 Multimeter will accept 10 external triggers.
READ? Place multimeter in wait-for-trigger state; make
measurements when external trigger is received;
send readings to output buffer.
enter statement Enter readings into computer.
:SOURce?
TRIGger:SOURce?
returns “
BUS
”, “
EXT
”, “
IMM
” or “
TTLTrg0
-
7
” to show the
present trigger source. The quoted string is sent to the output buffer.
Example
Query the Trigger Source