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Lead Contents

PLC: TIM Instruction

FAQ No. FAQ02579

Primary Contents

Question

My 8-second ON-delay timer program that uses a TIM instruction does not run properly. What is the problem?

Answer

The Problem Ladder Program

Figure 1

TIM instruction in diagram 1 has a timer setting of 80. To set an 8-second timer, this value must be changed to "#0080" (8.0 seconds).

If the timer setting value is set to 80, then the contents of CIO 80 when TIM0001 is executed will be used as the set time.