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2121331-04-04/19 (Translation of the original operating instructions)
Operating Instructions
Modular Safety Control System MSC
EN
9.4.4. COUNTER operators
The operators of type COUNTER enable the user to generate a signal (TRUE) as soon as the count entered is reached.
9.4.4.1. Counter (COUNTER) (max. number = 16)
The COUNTER operator is a pulse counter.
There are three operating modes:
1. AUTOMATIC
2. MANUAL
3. AUTOMATIC
In the following examples the counter value is 6:
1. The counter generates a pulse with the length of two internal
cycles as soon as the counter value entered is reached. This is
the default mode if the CLEAR pin is not activated.
Figure 158: Counters
Figure 159: Usage of the counter without reset input
2. The counter sets the Q output to "1" (TRUE) as soon as the counter value entered is reached.
The Q output changes to "0" (FALSE) if the CLEAR signal is activated.
Figure 160: Usage of the counter with CLEAR signal for resetting the output
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