Timer and Counter Instructions

Timer and Counter Instructions

Timers and counters control operations based on time or the number of events.
Available Instructions
Ladder Diagram
If you want to
Use this instruction
time how long a timer is enabled
time how long a timer is disabled
accumulate time
count up
count down
reset a timer or counter
The time base is 1 msec for all timers. For example, a 2 second timer’s .PRE value should be 2000.
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