32.7.2.2 Timing Chart for the TP Instruction

• Point A

The timer turns ON. The timer starts measurement (.TI turns ON). The timer output bit .Q turns ON.

• Point B

The elapsed time .ET equals the preset time .PT. The timer output bit .Q turns OFF. The timer stops measurement (.TI turns OFF). The elapsed time .ET remains equal to the preset time (ET = PT).

• Point C

The timer turns OFF. The elapsed time .ET resets to 0.

• Point D

The timer turns ON. The timer starts measurement (.TI turns ON). The timer output bit .Q turns ON.

• Point E

The timer turns OFF. The timer continues measurement (.TI remains ON). The timer output bit .Q remains ON.

• Point F

The elapsed time .ET equals the preset time .PT. The timer output bit .Q turns OFF. The timer stops measurement (.TI turns OFF). Because the timer input bit IN is OFF, the elapsed time .ET resets to 0.