
Agilent B1500A/B1505A Programming Guide, Edition 11 2-75
Remote Mode Functions
Trigger Function
Trigger Input
A trigger input operation example is shown in Figure 2-47. Measurement or source
output can be started by the input trigger sent through the port specified by the TGP
command. See Table 2-7.
Figure 2-47 Trigger Input Example, Staircase Sweep Measurement, Negative Logic
Initial Settings The following functions are available in the initial settings:
• Trigger port: Ext Trig In
• Trigger type: Start Measurement (type 1)
• Commands for the trigger wait: WS, TM3, or PA with TM3
Input Trigger The B1500 responds to the input trigger (minimum pulse width 10 μs) that changes
the signal level from high (approx. 2.4 V) to low (approx. 0.8 V). This is negative
logic. You can change it to positive logic by using the third parameter of the TGP
command.
Measurement
Trigger Delay
Available for the Start Step Measurement trigger (type 3).
Delay time from a trigger input to starting a step measurement. You can set the delay
time value by using the WT, WTDCV, WTACV, or WTFC command.
: Measurement
TGP t,1,p,3
TGP t,1,p,2
TGP t,1,p,1
Hold time (Case 2)
or more (Case 1)
Delay time or more
Start Step Measurement
Start Step Output Setup
Start Measurement
Measurement trigger delay
Case 1: With trigger for
first sweep step
Case 2: With trigger for
output after sweep
Case 1
Case 2
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