32.7.3.3 Timing Chart for the TOFA Instruction

• Point A

When IN (input) turns ON, Q (output) turns ON.

• Point B

When IN (input) is OFF, TI (timer measurement) turns ON. When TI turns ON, the timer measurement starts.

• Point C

When IN (input) turns ON, the timer measurement pauses.

• Point D

When IN (input) turns OFF, the paused timer measurement continues.

• Point E

When the preset time (PT) value has increased to the point that PT equals ET, TI (timer measurement) and Q (output) turn OFF.

• Point F, G

Even if IN (input) turns either ON or OFF, Q (output) and TI (timer measurement) will not turn ON.

• Point H

Turning ON R resets the accumulative timer. The timer is reset when an upward transition is detected.

• Point I

When IN (input) turns ON, Q (output) turns ON.

• Point J

When R (reset) turns on, Q (output) and TI (timer measurement) are reset. The timer current value ET is also reset and cleared to 0.

• Point K

When IN (input) turns ON, Q (output) turns ON.

• Point L

When IN (input) is OFF, TI (timer measurement) turns ON. When TI turns ON, the timer measurement starts.

• Point M

When the preset time (PT) value has increased to the point that PT equals ET, TI (timer measurement) and Q (output) turn OFF.