MicroLogix Counter Question

[Timk5000]

I am having an issue with a little Micrologix program.

Counter 1 increments each time item passes sensor on input 0
When Counter 1 increments to 5
Timer 1 starts
When Timer 1 is Done
Output 0 Turns on
Index belt advances until input 1 senses position change
Timer is Reset and everything starts over.

Problem is when the Timer 1 is reset it seems to start with a count of 1
I am not sure what I am doing wrong. In my sometimes confused mind it should work.

See Attached

 

[Mickey]

Do you mean "counter 1" instead of "Timer 1"?

That will happen if the rung controlling the counter is still true. Try using a clear instruction with the address of the counter or a "MOV" instruction moving a value of 0 to the counters .ACC ( C5:0.ACC)

 

[Timk5000]

Do you mean "counter 1" instead of "Timer 1"?

Yes, sorry, It is counter 1 not Timer

Thanks, I will give it a try

 

[Sergei Troizky]

MicroLogix counter immediately counts 1 upon reset, if the count condition is true.
Just add MOV 0 Cn.Acc right after the reset coil.

 

[bernie_carlton]

An alternative fix would be to create a one-shot of Input 0 and apply that one shot to the Counter.