User`s guide
70 34410A/11A/L4411A User’s Guide
2Features and Functions
Software (Bus) Triggering
This mode is available from the remote interface only.
The bus trigger mode corresponds in function to pressing the   key from 
the front panel, except that the trigger is initiated by sending a bus trigger 
command, after selecting BUS as the trigger source.
• The following command selects the bus trigger source:
TRIGger:SOURce BUS
Then, any of the following commands will initiate readings:
MEASure?
READ?
INITiate
Refer to the Agilent 34410A/11A/L4411A Programmer’s Reference Help for 
a complete description and syntax for these commands.
Internal (Level) Triggering (34411A/L4411A) 
Applies only to ac and dc voltage, ac and dc current, and 2-wire and 4-wire 
resistance measurements, and only for the 34411A/L4411A.
In the internal trigger mode, the 34411A/L4411A triggers on a positive or 
negative crossing (as selected) of a specified input level. You can specify both 
the trigger level, and the slope.
• Front Panel Operation: Press   
TRIGGER > LEVEL > TRIG LEVEL > TRIG SLOPE
Set TRIG LEVEL with the navigation keys, and then select NEG or POS for TRIG 
SLOPE. The Tr i g  annunciator indicates “waiting for trigger”.
• Remote Interface Operation: The following command selects the internal 
trigger source:
TRIGger:SOURce INTernal
The following command sets the trigger level on which to trigger:
TRIGger:LEVel 
<level>
The following command sets the trigger slope (positive or negative):
TRIGger:SLOPe {POS|NEG}
Refer to the Agilent 34410A/11A/L4411A Programmer’s Reference Help for 
a complete description and syntax for these commands.
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