Keysight 33210A, User Manual

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Chapter 4 Remote Interface Reference
Triggering Commands
4
• To ensure synchronization when the Bus source is selected, send the
*WAI
(wait) command. When the
*WAI
command is executed, the
function generator waits for all pending operations to complete before
executing any additional commands. For example, the following
command string guarantees that the first trigger is accepted and the
operation is executed before the second trigger is recognized.
TRIG:SOUR BUS;*TRG;*WAI;*TRG;*WAI
• You can use the
*OPC?
(operation complete query) command or the
*OPC
(operation complete) command to signal when the sweep or
burst is complete. The
*OPC?
command returns “1” to the output
buffer when the sweep or burst is complete. The
*OPC
command sets
the “Operation Complete” bit (bit 0) in the Standard Event register
when the sweep or burst is complete.
TRIGger
Trigger a sweep or burst from the remote interface. This command can
be used with any of the available trigger sources (
TRIG:SOUR
command).
For example, you can issue a trigger from the remote interface and use
the command with any of the available trigger sources (TRIG:SOUR
command).
*TRG
Trigger a sweep or burst from the remote interface only if the bus
(software) trigger source is currently selected (
TRIG:SOUR BUS
command).
TRIGger:SLOPe { POSitive | NEGative }
TRIGger:SLOPe?
Select whether the function generator uses the rising edge or falling edge
of the trigger signal on the rear-panel Trig In connector. The default is
POS (rising edge). The
:SLOP?
query returns “POS” or “NEG”.
BURSt:GATE:POLarity { NORMal | INVerted }
BURSt:GATE:POLarity?
Select whether the function generator uses true-high or true-low logic
levels on the rear-panel Trig In connector for an externally-gated burst.
The default is NORM (true-high logic). The
:POL?
query returns
“NORM” or “INV”.
33210A users guide.book Page 220 Wednesday, July 16, 2008 11:16 AM