Source - HP E1351A User Manual

:SOURce

Parameters
Comments
74 HP E1351A/53A 16-Channel FET Multiplexer Command Reference
TRIGger:SOURce BUS | DBUS | EXTernal | HOLD | IMMediate
the trigger source to advance the channel list during scanning.
Parameter Name Parameter Type
BUS
DBUS
EXTernal
HOLD
IMMediate
•
Enabling the Trigger Source: The
only selects the trigger source. The
enables the trigger source.
•
Using the
TRIG
advance the scan when
is selected.
HOLD
•
Using Digital Bus Trigger:
digital bus on the multiplexer as the trigger. Any open collector TTL
trigger source can be wired to the "Channel Advance" lead. A
negative-going pulse triggers the multiplexer and advances it to the
next channel on the scanning list. After the
the multiplexer asserts "Channel Closed" on the digital bus.
•
Using External Trigger Inputs: With
selected, only one switchbox at a time can use the external trigger
input at the HP E1300A/E1301A Mainframe's "Event In" port. The
trigger input is assigned to the first switchbox requesting the external
trigger source.
•
Assigning External Trigger: A switchbox assigned with
TRIG:SOUR EXT
receives a command to change the source. When the source is
changed, the external trigger source is available to another switchbox
(with a TRIGger:SOURce EXTernal
cannot receive an external trigger source if the source is already
assigned, or an error is generated.
•
Using Bus Triggers: To trigger the switchbox with
TRIGger:SOURce BUS
488.2 common command
( ).
GET
•
"Trig Out" Port Shared by Switchboxes: See the
command.
•
Related Commands:
TRIGger
•
*RST Condition:
Discrete
Discrete
Discrete
Discrete
Discrete
TRIGger:SOURce
INITiate[:IMMediate]
Command: You can use
TRIGger:SOURce BUS
TRIGger:SOURce DBUS
TRIGger:SOURce EXTernal
remains assigned to that source until the switchbox
command). Another switchbox
selected, use
TRIGger[:IMMediate]
*TRG or the HP-IB Group Execute Trigger
ABORt , [ROUTe:]SCAN
TRIGger:SOURce IMMediate
specifies
Range of Values
*TRG command
Digital Bus
Event In port
Hold Triggering
Continuous Triggering
command
command
to
TRIGger[:IMMediate]
or
TRIGger:SOURce
selects the
delay,
SETTling:TIME
, the IEEE
OUTPut
, SETTling[:TIME] ,
Chapter 5