GLC Series    Ladder Program How many counter and timer can be used in one Logic Program? What is the difference between Timer ON Delay, Timer OFF Delay and Timer Pulse? What is the difference between UP Counter, DOWN Counter and UP/DOWN Counter? Setup example of Timer ON Delay Setting example of Timer Pulse Setting example of UP Counter Setting example of the DOWN Counter Setting example of the UP/DOWN Counter How do I reset the Counter Instruction? Would the preset value and the present value of the Timer and the Counter be reserved when turning ON and OFF the power? Is it possible to display the present value of the Timer by the minute and the seconds separately on the screen? When I checked the accuracy of the Timer instruction, there is a time error of about 1 second in every 10 minutes. Why? What happens to the counter output bit Q if the preset value (PV) of the counter is set to zero? If I change the preset value (PV) of counter to the value that is less than the current value (CV), what would be the status of the counter output bit Q ? Wish to set a variable to the input value in the TOP instruction and write a designated value to the variable. How can I do so?

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