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

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

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Automation System
The program counter:

decides which program to run
None of these
is where arithmetic is done in a computer.
counts the number of instructions that have been executed
contains the address of the next instruction to be executed

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