Depending on the PLC manufacturer, counters can be based on Blank $1$ and$/$or Blank $2.$

BLANK$-1$ options:

software

$1$ ms

hardware

$1$ second

$100$

$10$

BLANK$-2$ options:

software

$1$ ms

hardware

$1$ second

$100$

$10$

Blank $1$ Add yc

Blank $2$

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