Easy xLogic, Руководство пользователя

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60 60 60 60
(Symbol in xLogic)
The output is 1 if the input is 0. The NOT block inverts the input status.
Advantage of the NOT, for example: xLogic no longer requires break contacts. You simply use
a make contact and convert it into a break contact with the help of the NOT function.
Logic table of the NOT function:
Input Input Input Input 1 1 1 1 Output Output Output Output
0 1
1 0
4 4 4 4.3 .3 .3 .3 Basics Basics Basics Basics on on on on special special special special functions functions functions functions
Because of their different input designation, you can see right away that there is a difference
between the special functions and basic functions. SFs contain timer functions, retentive functions
and various parameter assignment op
tions, which allow you to adapt the circuit program to suit
your own requirements.
This section provides you with a brief overview of input designations and with some
particular background informa
tion on SFs. The SFs in particular are described in Chapter
4
4 4 4 4.3.1 .3.1 .3.1 .3.1 Designation Designation Designation Designation of of of of the the the the inputs inputs inputs inputs
Logical Logical Logical Logical inputs inputs inputs inputs
Here, you will find the description of the connectors you can use to create a logical link to
other blocks or to the in
puts of the xLogic unit.
S S S S (Set): (Set): (Set): (Set):
A signal at input S sets the output to logical “1”.
R
R R
R (Reset):
(Reset): (Reset):
(Reset):
The reset input R takes priority over all other inputs and resets the outputs.
Trg
Trg
Trg Trg (Trigger)
(Trigger)
(Trigger) (Trigger)::::
This input is used to trigger the start of a function.
Cnt Cnt Cnt Cnt (Count) (Count) (Count) (Count)::::
This input is used for counting pulses.
Fre Fre Fre Fre (Frequency) (Frequency) (Frequency) (Frequency)::::
Frequency signals to be evaluated are applied to this input.
Dir Dir Dir Dir (Direction) (Direction) (Direction) (Direction)::::
This input determines the direction of count.
En En En En (Enable) (Enable) (Enable) (Enable)::::
This input enables a block function. When this input is “0”, other signals to the block will be
ignored.
Inv Inv Inv Inv (Invert) (Invert) (Invert) (Invert)::::
A signal at this input inverts the output signal of the block.
Ral Ral Ral Ral (Reset (Reset (Reset (Reset all) all) all) all)::::