Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 65)

Addressing Rules and Examples
Chapter 4
4Ć9
<wordaddr>
<filesym>:<offset>
<wordsym>
Note that <wordaddr>is interpreted as an octal value if the addressed
word is in an input or output file. Otherwise, <wordaddr>is interpreted as
a decimal value (section titled Number Systems).
To access words in the pointer of floating point sections of PLC–3
memory, use the PLC–3 extended addressing format. You can read about
extended addressing in:
PLC–3 Programmable Controller Programming Manual (pub. no.
1775–6.4.1)
Addressing a Bit
To address a specific bit within a PLC–3 word, use one of the following
formats:
<wordaddr>/<bit>
<filesym>:<offset>/<bit>
<wordsym>/<bit>
Figure 4.6 gives some examples of addressing individual bits in PLC–3
memory.