Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 64)

Addressing Rules and Examples
Chapter 4
4Ć8
For PLC–3 timer and counter files, it is important to note that the data
words are stored in the following order:
CTL PRE ACC
That is, the control, preset, and accumulated values for a given timer or
counter are stored as consecutive words in the same file.
Addressing a Word Range
To address a range of words in PLC–3 memory, use one of the following
formats:
<wordaddr><size>
<filesym>:<offset>,<size>
<wordsym>,<size>
Figure 4.5 is an example of addressing a range of PLC–3 words.
Figure 4.5
Example of Addressing a Range of PLC-3 Words
$N 15 : 0, 20
< <
Number of words to
Delimiter
Address of first word
be transferred
to be transferred.
10022-I
You may use a word range only as the source field in an assignment
command. The destination must be a file that is as large as, or larger than,
the source range.
Addressing a Word
To address a single word in PLC–3 memory, use one of the following
formats: