Software Reference
Chapter 4
GPIB-410 User Manual
4-12
© National Instruments Corp.
•
Pulse Output Port Option
•
Trigger Action
Data/Control Specification (Trigger Pattern)
Use this field to specify a 16-bit pattern that you want the GPIB-410 to
later wait for on the bus. The ordering of the signal lines in the pattern
is identical to that shown in the Monitor window.
Construct the trigger pattern by pressing the indicated letter keys to
select a
0
,
1
, or
x
("don't care") condition for each signal line. As
indicated on the screen, the topmost row of letters on the keyboard
manipulates the data portion of the pattern and the next row of letters
manipulates the control portion. Use the Insert key (<Ins>) to place a
single 8-bit ASCII or 2-digit hexadecimal value directly into the data
portion of the pattern.
Pattern Repetition Factor
Use this field to enter a repetition factor for the associated trigger
pattern. This value specifies how many distinct times a pattern must
occur on the bus before the pattern is considered satisfied. Only when a
pattern is satisfied will the software move on to the next pattern in the
sequence.
Valid repetition factors range from 1 to 9999 (default = 1).
Pulse Output Port
Use this field to specify whether to send a pulse to the TRG output port
of the GPIB-410 each time the trigger pattern is matched. There are two
options.
•
PULSE
•
NO PULSE
