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Digital Oscilloscope Series
170
TRIGGER
TRIG_PATTERN | TRPA
Command /Query
DESCRIPTION
The TRIG_PATTERN command specifies the
channel values to be used in the pattern trigger
and sets the condition of the pattern trigger.
The TRIG_PATTERN? query returns channel
values and the condition of the pattern trigger.
COMMAND SYNTAX
TRIG_PATTERN
<source>,<status>[,<source>,<status>[,<sourc
e>,<status>[,<source>,<status>]]],STATE,<co
ndition>
< source >:={C1,C2,C3,C4}
<status>:={X,L,H}
< condition >:={AND,OR,NAND,OR}
• X — Ignore this channel. When all channels
are set to X, the oscilloscope will not trigger.
• L — Low level.(lower than the threshold
level of the channel)
• H — High level.(higher than the threshold
level of the channel)
Note:
The status of source can only be set when the
source is on.
QUERY SYNTAX
TRIG_PATTERN?
RESPONSE FORMAT
TRIG_PATTERN
<source>,<status>,<source>,<status>,<source
>,<status>,<source>,<status>,STATE,<condit
ion>
EXAMPLE
When the trigger type is Pattern, and Channel
2 & Channel 3 are on, the following command
sets the Channel 2 and Channel 3 to low and
the condition to AND.
Command message:
TRPA C2,L,C3,L,STATE,AND
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