48
Agilent E1412A Multimeter Application Information
Bus Triggering
The multimeter is triggered from the VXIbus. This mode is selected with the
TRIGger:SOURce BUS
command.
•
Use the
*TRG
command from the GPIB to trigger the multimeter when
TRIG:SOUR BUS
is used. The
*TRG
command will not be accepted
unless the multimeter is in the wait-for-trigger state.
•
You can also trigger the multimeter from the GPIB interface by
sending the IEEE-488 Group Execute Trigger (GET) message. The
multimeter must be in the wait-for-trigger state. Send a GET from a
Hewlett-Packard controller with the following command:
TRIGGER 70903
Note
TRIG:SOUR BUS
is not implemented on B-size resource managers, such
as the E1306A Command Module or the E1300A/E1301A B-size
Mainframes.
The Wait-for-Trigger
State
You must place the multimeter in the wait-for-trigger state after you have
configured it and selected a trigger source. A trigger will not be accepted
until the multimeter is in this state. The measurement sequence begins when
the multimeter is in the wait-for-trigger state and it receives a trigger.
You can place the multimeter in the “wait-for-trigger” state by executing
one of the following commands:
READ?
INITiate
Note
The multimeter requires approximately 20ms of set up time after you send
a command to change to the “wait-for-trigger” state. Any triggers that
occur during this set up time are ignored.
The Trigger Count
The
TRIGger:COUNt <
number
>
command sets the number of triggers the
multimeter will accept in the wait-for-trigger state before returning to the
idle state. Use the
number
parameter to set the trigger count to a value
between 1 and 50,000. The
MEASure
and
CONFigure
commands set trigger
count to 1.
Substituting
MIN
for the
number
parameter sets the trigger count to 1.
Substituting
MAX
for the
number
parameter sets the trigger count to 50,000.
Summary of Contents for Agilent E1412A
Page 2: ......
Page 10: ...8 Contents Notes...
Page 14: ...12 Notes...
Page 15: ...13 Notes...
Page 16: ...14 Notes...
Page 26: ...24 Agilent E1412A Multimeter Module Setup Chapter 1 Notes...
Page 194: ...192 Agilent E1412A Multimeter Error Messages Appendix B Notes...
Page 201: ...Index 199 Index Agilent E1412A User s Manual and SCPI Programming Guide...
