Source - HP E1343A User Manual

:SOURce

Parameters
Comments
Example
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TRIGger:SOURce BUS|EXTernal|HOLD|IMMediate
to advance the channel list during scanning.
Parameter Name
BUS
EXTernal
HOLD
IMMediate
•
Enabling the Trigger Source: The
the trigger source. The
source.
•
Using the Command: You can use
TRIG
scan when TRIGger:SOURce BUS
•
Using External Trigger Inputs: With
only one switchbox at a time can use the external trigger input at the
HP E1300/E1301 Mainframe "Event In" port. The trigger input is assigned to
the first switchbox requesting the external trigger source.
•
Assigning External Trigger: A switchbox assigned with
remains assigned to that source until it receives a command to change the
source to BUS , HOLD
trigger source is available to another switchbox (with a
command). Another switchbox cannot receive an external trigger
EXTernal
source if the source is already assigned, or an error is generated.
•
Using Bus Triggers: To trigger the switchbox with
selected, use the IEEE 488.2 common command
Execute Trigger ( GET
•
"Trig Out" Port Shared by Switchboxes: See the
•
Related Commands:
•
*RST Condition:
TRIGger:SOURce IMMediate
Scanning Using External Triggers
In the following example, the trigger input is applied to the HP E1300/E1301
Mainframe "Event In" port.
TRIG:SOUR EXT
SCAN (@100:115)
INIT
trigger externally
Parameter Type
discrete
discrete
discrete
discrete
TRIGger:SOURce
INITiate[:IMMediate] command enables the trigger
TRIGger[:IMMediate]
or TRIGger:SOURce HOLD
TRIGger:SOURce EXTernal
, or IMMediate . When the source is changed, the external
).
,
[ROUTe:]SCAN TRIGger
Sets trigger source to external.
Sets channel list.
Starts scanning cycle.
Advances channel list to next channel.
Relay Multiplexer Command Reference
specifies the trigger source
Range of Values
*TRG command
Event In BNC port
Hold triggering
Continuous triggering
command only selects
to advance the
is selected.
selected,
TRIG:SOUR EXT
TRIGger:SOURce
TRIGger:SOURce BUS
or the HP-IB Group
*TRG
command.
OUTPut
,
ABORt
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