Schneider Electric SR2MAN01 user manual Up-Counting in Single Cycle Mode

LD Language Elements

Timing Diagrams Timing diagrams are provided here to illustrate the various behaviors of the fast counter according to its parameters:

zup-counting function TO, in single cycle mode,

zdown-counting function FROM, in single cycle mode,

zup-counting function TO, in repetitive cycle mode,

zdown-counting function FROM, in repetitive cycle mode.

For the following 4 charts, the blue curve represents the current value of the counter. When it increases, it is because of pulses on I1 and when it decreases, it is because of pulses on I2.

Up-Counting in Single Cycle Mode:

The figure below illustrates the counter function in up-counting and single cycle mode:

Confirmation

Initialization

CURRENT_COUN	+32767
TER_VALUE
Preset value
0

-32767

Output

124 SR2MAN01 11/2007