Fluke 8845A - Page 66

8845A/8846A
Programmers Manual
56
Sample
Count # 1
Measurement
Sample
Delay
Wait-for-
Trigger
State
Idle
State
Initiate Triggering
MEASure?
READ?
INITiate
Triggering Delay
TRIGger:DELay
Sample (*)
Annuniator
Trigger Source
TRIGger:SOURce IMMediate
TRIGger:SOURce EXTernal
TRIGger:SOURce BUS
Front-panel "Single" key
Trigger
Count # 1
dae02.eps
Figure 4. 884XA Triggering System
The Meter can be put into a wait-for-trigger state remotely by sending it a MEASure?,
READ?, or INITiate command. Once received by the Meter, it takes approximately 20
ms to setup the Meter and put it in to the wait-for-trigger state. Any triggers received
during this set-up time are ignored.
Using the Triggering Commands
INITiate
Description Sets the Meter to the wait-for-trigger state in which the next trigger from
the selected source triggers a measurement cycle. Up to 5,000
measurements are placed into the Meter’s internal memory, where they can
be retrieved with the FETCh? command.
Examples INIT Sets the Meter to the wait-for-trigger state.
READ?
Description Sets the Meter in to the wait-for-trigger state where the next trigger from
the selected source triggers a measurement cycle. Measurements are sent
directly to the output buffer.
Examples READ? Sets the Meter to the wait-for-trigger state.