Author Question: In addition to the decimal number system, the number systems used most often in PLC operation and ... (Read 223 times)

nmorano1 · **on:** Jul 28, 2018

In addition to the decimal number system, the number systems used most often in PLC operation and programming are ________.

A) BCD and hexadecimal B) Binary and octal
C) Binary and hexadecimal D) Octal and BCD

Question 2

Select the timing relay that fits this operation: after the coil is energized NC contacts open and remain open as long as the coil is energized. When the coil is de-energized, the timed contacts remain open for the set time delay value.

A) NCTO B) NOTO C) NCTC D) NOTC