Rockwell Automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTAM) - Manual (Page 98)

B-2 SLC 500 Data Files and Logical Addressing
Publication 1747-6.1
Address Structure
Data files contain elements. Some data files have 1-word elements,
some have 3-word elements. You will be addressing elements, words,
and bits.
Addresses are made up of alpha-numeric characters separated by
delimiters. Delimiters include the colon, slash, and period.
Typical element, word, and bit addresses are shown below.
The address format varies, depending on the file type. This is
explained in the following sections. We begin with file 0 and 1,
outputs and inputs, and follow with files 3, 4, 5, 6, and 7.
Data Files 0 and 1 - Outputs and Inputs
Bits in file 0 are used to represent external outputs. Bits in file 1 are
used to represent external inputs. In most cases, a single 16-bit word
in these files will correspond to a slot location in your controller, with
bit numbers corresponding to input or output terminal numbers.
The tables on the following pages describe the I/O addressing
methods for both fixed and modular controllers.
N7:15
Element
File
Number
File
Type
Element
Delimiter
T4:7.ACC
Word
File
Number
File
Type
Element
Delimiter
B3:64/15
Element
File
Number
File
Type
Element
Delimiter
Element
Word Delimiter
Bit
Delimiter
Bit
An element address A word address A bit address