Digital Quantity − D - Honeywell 2MLF-DV4S User Manual

Digital quantity − D
The following figure displays the digital value.
A discontinuously changing value is called digital value. The Figures displays a digital
value. For example, the digital quantity of 0 and 1 displays On and Off signal. Binary
coded decimal (BCD) and binary value is also a digital value.
This figure displays the process in the PLC.
Analog value cannot be directly fed to the PLC CPU for calculation of the digital value.
The analog value is converted to digital value as in the figure and fed to the CPU. In
addition, in order to output the analog value outward, the CPU's digital value is
converted to analog value.
R200 Isolated Analog Output Module 2MLF-DV4S, 2MLF-DC4S User's Guide
September 2010 Honeywell
1. Introduction
1.2. Terminology
19