RIGOL DP832A - Manual (Page 167)

Chapter 2 Command System RIGOL
DP800 Programming Guide 2-143
:TRIGger:IN:CHTYpe
Syntax :TRIGger:IN:CHTYpe {BUS|IMM}
:TRIGger:IN:CHTYpe?
Description Select the trigger source type.
Query the trigger source type currently selected.
Parameter Name Type Range Default
{BUS|IMM} Discrete BUS|IMM BUS
Explanation  The trigger source types include BUS (bus trigger) and IMM (immediate trigger).
For the bus trigger (BUS; also called software trigger), the power supply
receives trigger from the bus; namely, the power supply receives trigger via
software. For immediate trigger (IMM), the power supply receives immediate
trigger from the remote interface.
 When the trigger source type is "IMM" (immediate trigger), the power supply
will execute a complete trigger operation (the voltage/current of the specified
channel changes to the trigger voltage/current currently set immediately)
immediately without any delay when you execute the :INITiate
or :TRIGger:IN:IMMEdiate command.
 When the trigger source type is "BUS" (bus trigger; namely software trigger),
after you execute the :INITiate or :TRIGger:IN:IMMEdiate command to initialize
the trigger system, the power supply generates a trigger when you execute the
*TRG command and then executes a trigger operation (the voltage/current of
the specified channel changes to the trigger voltage/current currently set) after
waiting for the specified delay time (if you have set the delay time; refer to
the :TRIGger[:SEQuence]:DELay command).
 When the trigger source type is "BUS" (bus trigger; namely software trigger),
you can ensure the synchronization of the operations by executing the *WAI
command. After you execute the *WAI command, the power supply will only
execute the new command after all the previous operations are finished.
 When the trigger source type is "BUS" (bus trigger; namely software trigger),
you can make the system report the completion of the operation by executing
the *OPC command. When you execute the *OPC? command, the system will
return "1" to the output buffer when the operation is completed; when you
execute the *OPC command, the system will set bit0 (OPC bit; operation
completed) in the standard event register when the operation is completed.
 You can also send the :TRIGger[:SEQuence]:SOURce command to select the
trigger source type.
Return Format The query returns BUS or IMM.
Example :TRIG:IN:CHTY BUS /*Set the trigger source type to BUS (bus trigger; namely
software trigger)*/
:TRIG:IN:CHTY? /*Query the trigger source type currently selected and the
query returns BUS*/
Related
Commands
:INITiate
:TRIGger:IN:IMMEdiate
*TRG
:TRIGger[:SEQuence]:DELay
*WAI