Future Design MCTB 4.3, Руководство пользователя

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MCTB
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Nor If either input is true, the output is false. If both inputs are false, the output is true.
Note: NOR is just what it implies, i.e., NOT OR.
Latch When the trigger is active, the output follows the input. When the trigger is off, the output is held
(latched) at the value it had when the trigger was lost.
RS Flip Flop One input sets the output true; another sets it false.
Inputs Output
F F T
F T F
T F F
T T F
F = False (off)
T = True (on)
As long as loop 2 event input is
true (on), the equation will be
evaluated. Thus, the loop 1
event output 4 will be on when
the loop 1 event input is on and
off when it is off.
When the loop 2 event input is
false (off), the equation will no
longer be evaluated and the
previous output state will be held.
If the loop 1 event input is on and
the loop 2 event input is off, the
output will be true. Since the
output is logically OR’d with the
loop 1 event input, even if the
input is turned off, the expression
within the parenthesis is still true
so the output holds itself on.
If the loop 2 event input is then
turned on, it will result in a false
outcome, and the output will be
turned off.