57
a<x: If the value of the selected source "a" (V1) is less than "x" (V2), the condition is True,
which is the programmed value.
|a|>x: If the absolute value of the selected source "a" (V1) is greater than "x" (V2), the
programmed value, the condition is True. (Absolutely means that "a" is ignored or not, and only
that value is used).
|a|<x: If the absolute value of the selected source "a" (V1) is less than "x" (V2), the
programmed value, the condition is True. (Absolutely means that "a" is ignored or not, and only
that value is used).
AND: If both sources selected in V1 and V2 are true (ie ON), the condition is True.
OR: If any of the selected sources in V1 and V2 is true (ie ON), the condition is True.
XOR: If the V1 source or V2 is true (ie ON) instead of both, the condition is True.
Edge: is a momentary switch (lasting about 30 milliseconds) that turns True when its V1
source is triggered.
V1: The value of the selected trigger source.
V2: Divided into two parts [t1:t2], t1 is the minimum value, and t2 is the maximum duration
of V1. The logic switch becomes True only after the trigger V1 is true at least t1 and is released
before t2.
If t2 is reserved as "---" then only t1 is applied. When V1 transitions from True to False (ie,
falling edge), the logic switch is triggered and the logic switch will be TRUE for 1 processing
cycle (~30ms). If t2 is set to "<<", the logic switch (ie the rising edge) will be triggered when V1
transitions from False to True.
If the AND Switch parameter is used, the AND switch must be True to trigger the Edge
function. If the AND switch changes to False when the Edge function is activated, the LS will
not be reset but will be timed out.
a=b: If the value of the selected source "a" (V1) is "accurate" equal to the value of the
second selected source "b" (V2), the condition is True. Care must be taken when using the
"Exact" equal function. For example, when comparing two voltages, the actual telemetry
readings may be 4.5V and 4.55V in one scan, and jump to 4.54V and 4.45v on the next scan,
so the condition is never met and the logic switch never turns on. .
a>b: If the value of the selected source "a" (V1) is greater than the value of the second
selected source "b" (V2), the condition is True.
a<b: If the value of the selected source "a" (V1) is less than the value of the second
selected source "b" (V2), the condition is True.
Note: It can be seen that the main difference between "b" and "x" in a function is to select
"a" and "b" to define the source, and "x" is a programmed value or constant.
d>x: The condition is true if the value of the selected source (V1) changes "d" greater than
the programmed value "x" (V2).