AMETEK Lx Series II Programming Manual - Manual (Page 141)

Programming Manual Lx \ Ls Series II
137
The INITiate commands move the trigger system from the Idle state to the Initiated state. This
enables the AC source to receive triggers. To initiate for a single triggered action, use:
INITiate:IMMediate:SEQuence1 or
INITiate:IMMediate:NAME TRANsient
After a trigger is received and the action completes, the trigger system will return to the Idle state.
Thus it will be necessary to initiate the system each time a triggered action is desired. To keep a
trigger system initiated for multiple actions without having to send an initiate command for each
trigger, use:
INITiate:CONTinuous:SEQuence1 ON or
INITiate:CONTinuous:NAME TRANsient, ON
The SEQuence2 (or SYNChronize) trigger sequence does not have an INITiate command. It is
always initiated.
6.7.4 Selecting the Output Trigger Source
The trigger system is waiting for a trigger signal in the Initiated state. Before you generate a
trigger, you must select a trigger source. To select the external Trigger In1 SMA as the source,
use:
TRIGger:SEQuence1:SOURce EXTernal or
TRIGger:TRANsient:SOURce EXTernal
To select IEEE-488 bus triggers (group execute trigger, device trigger, or *TRG command), use:
TRIGger:SEQuence1:SOURce BUS or
TRIGger:TRANsient:SOURce BUS
To select a trigger source that is always true, use:
TRIGger:SEQuence1:SOURce IMMediate or
TRIGger:TRANsient:SOURce IMMediate
The immediate source can be combined with INITiate:CONTinuous:SEQuence1 ON to generate
repetitive output transients. A transition from the Initiated state to the Delay state is made when
the trigger signal is received.
6.7.5 Specifying a Trigger Delay
A time delay can be programmed between the receipt of the trigger signal and the start of the
output transient. At *RST the trigger delay is set to 0, which means that there is no delay. To
program a delay, use:
TRIGger:SEQuence1:DELay .01 or
TRIGger:TRANsient:DELay .01
which sets a delay time of 10 milliseconds. A trigger delay can only be programmed for
SEQuence1 (or TRANsient) triggers. When the programmed trigger delay has elapsed, the trigger
system transitions from the Delay state to the Wait-for-sync state.