Automation System
How is the integral mode implemented on a digital controller?

None of these
the digital controller cannot handle integral mode
the error is divided into discrete amounts
All of these
the error signal is summed over a discrete time interval and accumulated by the controller

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Automation System
Vision sensors:

None of these
All of these
will remain very costly
will more closely match the capabilities of the human eye
can not improve much in the next decade

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