
Operating Instructions
Modular Safety Control System MSC
138
(Translation of the original operating instructions) 2121331-04-04/19
3. The counter generates a pulse length that corresponds to the reaction time as soon as the count entered is reached.
If the CLEAR signal is activated, the internal counter returns to 0.
Figure 161: Usage of the counter with CLEAR signal for resetting the counter input
Parameter
Enable Clear: If this option is selected, the clear request is activated to restart the count by setting the Q output to "0" again
(FALSE). It is also possible to activate the automatic function (Automatic Enable) using manual reset.
If not selected, the operating mode is then automatic and, on reaching the count entered, the output changes to "1" (TRUE)
and remains there for two internal cycles. It is then reset.
Ck down: Selects counting down.
Double edge: If selected, rising and falling edges are counted.
Содержание MSC
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