Rohde & Schwarz SML01, Operating Manual

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R&S
®
SML / R&S
®
SMV03 TRIGger
1090.3123.12 E-6 6.51
:TRIGger1|2[:SWEep]:SOURce AUTO | SINGle | EXTernal
The command specifies the trigger source. The naming of the parameters directly corresponds to
the different settings with manual control. SCPI uses other designations for the parameters the
instrument accepts as well. These designations are to be preferred if compatibility is important.
The following table provides an overview.
R&S SML / R&S SMV03 designation SCPI designation Command with manual control
AUTO IMMediate Mode Auto
SINGle BUS Mode Single or Step
EXTernal EXTernal Mode Ext Trig Single or Ext Trig Step
AUTO The trigger is free-running, i.e., the trigger requirement is permanently met. As soon
as a sweep has been terminated, the next one is started.
SINGle Triggering is effected by means of IEC-bus commands
:TRIG:SWE:IMM
or
*TRG
. If
:SOUR:SWE:MODE
is set to
STEP
, a step, in the case of the
AUTO
setting a complete
sweep, is executed.
EXTernal Triggering is effected from outside via the TRIGGER socket or by the GET
command via IEC/IEEE-bus. The action triggered depends on the setting of the
sweep mode as in the case of SINGle.
Example:
:TRIG:SWE:SOUR AUTO
*RST value is SING
:TRIGger:PULSe
This node contains all commands to trigger the pulse generator (Option R&S SML-B3). The
commands are only valid for TRIGger1.
:TRIGger:PULSe:EGATed:POLarity NORMal | INVerted
The command defines the active level of the gate signal.
NORMal Active level = HIGH
INVerted Active level = LOW
Example:
:TRIG:PULS:EGAT:POL INV
*RST value is NORM
:TRIGger:PULSe:SOURce AUTO | SINGle | EXTernal | EGATed
The command specifies the trigger source.
AUTO
Trigger is free-running (see above).
SINGle Triggering is effected by means of IEC-bus commands
:TRIG:PULS:IMM
.
EXTernal Triggering is effected from outside via the PULSE socket.
EGATed Triggering is effected when the gate signal is active.
Example:
:TRIG:PULS:SOUR AUTO
*RST value is AUTO
:TRIGger:PULSe:SLOPe POSitive | NEGative
The command defines whether the action triggered is triggered at the positive or the negative
edge of the trigger signal.
Example:
:TRIG:PULS:SLOP NEG
*RST value is POS:TRIGger:PULSe[:IMMediate]
:TRIGger:PULSe[:IMMediate]
The command immediately starts a pulse. The command corresponds to manual-control
command Execute Single Pulse. This command triggers an event and thus has no *RST value.
Example:
:TRIG:PULS:IMM