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

Page 100

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B-4

SLC 500 Data Files and Logical Addressing

Publication 1747-6.1

I/O addresses are assigned to modular controllers as shown in the
table below:

Format

Explanation

O:e.s/b

I:e.s/b

O

Output

I

Input

:

Element delimiter

e

Slot number
(decimal)

Slot 0, adjacent to the power supply in
the first rack, applies to the processor
module (CPU). Succeeding slots are I/O
slots, numbered from 1 to a maximum of
30.

.

Word delimiter.

Required only if a word number is
necessary as noted below.

s

Word number

Required if the number of inputs or
outputs exceeds 16 for the slot. Range:
0-255 (range accomodates multi-word
specialty I/O modules).

/

Bit delimiter

b

Terminal
number

Inputs: 0 to 15
Outputs: 0 to 15

Examples:

O:3/15

O:5/0

O:10/11

I:7/8

I:2.1/3

Output 15, slot 3
Output 0, slot 5
Output 11, slot 10
Input 8, slot 7
Input 3, slot 2, word 1

Word
Addresses

O:5

O:5.1

I:8

Output word 0, slot 5
Input word 1, slot 5
Input word 0, slot 8