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Within the limitations shown by the syntax definitions, complex expressions
may be formed using the AND and OR operators. Expressions are limited to
what you could manually enter through the Timing Trigger menu. As far as
required and optional parentheses, the syntax definitions on the next page
show only the required ones. Additional parentheses are allowed as long as
the meaning of the expression is not changed. Figure 22-2 on page 22-11
shows a complex expression as seen in the Timing Trigger menu.
Example The following statements are all correct and have the same meaning. Notice
that the conventional rules for precedence are not followed. The expressions
are evaluated from left to right.
OUTPUT XXX;":MACHINE1:TTRIGGER:BRANCH1 ’C AND D OR F OR G’, 1"
OUTPUT XXX;":MACHINE1:TTRIGGER:BRANCH1 ’((C AND D) OR (F OR G))’, 1"
OUTPUT XXX;":MACHINE1:TTRIGGER:BRANCH1 ’F OR (C AND D) OR G’,1"
<N> integer from 1 to <number_of_levels>
<to_level_
number>
integer from 1 to <number_of_levels>
<number_of_
levels>
integer from 1 to the number of existing sequence levels (maximum 10)
<branch_
qualifier>
<qualifier> see "Qualifier" on page 22-6
Example OUTPUT XXX;":MACHINE1:TTRIGGER:BRANCH1 ’ANYSTATE’, 3"
OUTPUT XXX;":MACHINE2:TTRIGGER:BRANCH2 ’A’, 7"
OUTPUT XXX;":MACHINE1:TTRIGGER:BRANCH3 ’((A OR B) OR NOTG)’,
1"
TTRigger (TTRace) Subsystem
BRANch
22–10