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Theory

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Procedure

Simulation

Posttest

References

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Implementation Of Off-Delay Timer

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The main difference between a Ton and a Toff timer is that:

a: Toff can maintain the accumulated time on loss of logic continuity Explanation

Explanation

b: Toff timer begins timing when logic continuity to the rung is lost Explanation

Explanation

c: Ton can maintain the accumulated time on loss of logic continuity Explanation

Explanation

d: None Explanation

Explanation

DN bit for Toff timer is initially high when the program is switched to run mode after downloading:

a: True Explanation

Explanation

b: False Explanation

Explanation

c: Can’t say Explanation

Explanation

d: None Explanation

Explanation

The done bit changes state whenever:

a: the timer timing value reaches the preset value Explanation

Explanation

b: the accumulated value reaches the timer timing value Explanation

Explanation

c: the accumulated value reaches the preset value Explanation

Explanation

d: None Explanation

Explanation

Toff is used when action is not expected after specific delay:

a: True Explanation

Explanation

b: False Explanation

Explanation

c: Can’t say Explanation

Explanation

d: None Explanation

Explanation

In off delay timer the status of TT bit is same as:

a: Rung condition IN bit Explanation

Explanation

b: EN bit Explanation

Explanation

c: DN bit Explanation

Explanation

d: None Explanation

Explanation

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