Use Counter in Mitsubishi PLC

 Counters

 


This instruction increments the current value of the counter specified by 1 when the instruction changes from OFF to ON, and when the counter reaches the end of its count, NO contact becomes conductive and NC contact becomes non-conductive.

 Let us see an example,

Suppose you have one sensor which is physically connected to X0, when ever this sensor is on X0 will turn on which in turn execute the instruction.

 

 
When X0 turn Off to On for 10 times the counter C1 will turn On Bit. 



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