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Reversible Counter(Timer/Counter Instruction)
Source: plcer.com  Date: 2011-07-09

This is a purpose CNTR(012) operates a reversible counter.The counter PV is incremented by 1 every time that the increment input goes from OFF to ON, and it is decremented by 1 every time that the decrement input goes from OFF to ON. The PV canfluctuate between 0 and the S.The counter number must be between 0000 and 4095.The set value must be between #0000 and 9999

               


Example for use CNTR

From this sample when input 0.00 change from Off to On counter
CNTR100 will increase one if input 0.01 change off to on will
decrease one also if 0.02 is On will reset value output 20.00 will
On when 0.00 on 10 time


 


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