Chapter 9 Reading Quiz FINAL (WIP)

The counter underflow bit is true when the accumulator is equal to:

-32,768

Which counter instruction register holds a number which indicates how many times the counter has counted?

Accumulated register

In an Allen-Bradley SLC PLC, the counter data file is:

C5

An Allen-Bradley SLC PLC can never have more than one counter.

False

Three different types of counter instructions are available in PLCs: count up, count down, and retentive

False

For an Allen-Bradley SLC PLC, the theoretical maximum number of counters is 256.

True

It is possible to move the value of one counter's accumulator into another counter's accumulator.

True

Once a count-up instruction's done bit is enabled, it remains enabled until the counter is reset.

True

The preset value for a count-down counter is usually a _____ number.

negative

In a count-up instruction, the done bit is _____ when the accumulated register equals the preset register.

true / one