In a math instruction, the ______________________________ must be a register.

TOD instruction converts ____.

How many flag bits are available to the PLC programmer for programming PLC counter instruction registers?

Which of the following PLC instructions are considered interrupt routines?

Which of the following statements about a TOF timer is correct?

The ______________________________ in an add (ADD) instruction must be a register.

How many counter instructions can an Allen-Bradley PLC have?

Data files C5:0 through C5:255 can be used for ______________________________ instructions.

A ____ should be selected for the following operation: when the timer has completed its preset timing period, its timer done contact is closed.

In an LIM instruction, the test source must be a(n) ______________________________.