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7. Counter Function Block
Upcounting Function: TO
The following diagram shows the operation of the counter in TO mode:
upcounting to the preset value.
Current counter
value
High saturation
+32767
Preset value
Low saturation
0
Initialization: R
Counting
direction: D
Output: C
Downcounting Function: FROM
The following diagram shows the operation of the counter in FROM
mode: downcounting from the preset value.
Current counter
value
High saturation
+32767
Preset value
0
Initialization: R
Low saturation
Counting
direction: D
Output: C
Chapter 4 - Automation Functions
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