Automation System
If the present value in a timer in the TI510 is 8, how many milliseconds is required from the time the timer is started until the output is enabled?

None of these
133.36
18
1275.41
149.88

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Automation System
Light sensors:

never use infrared light as light source
None of these
come in a wide variety of mounting styles
cannot be used a s limit switches.
work in direct sunlight

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