Addressing data files, Preface, Specifying logical addresses – Rockwell Automation 1761 MicroLogix 1000 Programmable Controllers User Manual
Page 86
Preface
MicroLogix 1000 Programmable Controllers User Manual
4–10
Addressing Data Files
For the purposes of addressing, each data file type is identified by a letter
(identifier) and a file number.
Output
Input
Status
Bit
Timer
Counter
Control
Integer
O
I
S
B
T
C
R
N
0
1
2
3
4
5
6
7
File
Type
File
Number
Identifier
The addresses are made up of alphanumeric characters separated by delimiters.
Delimiters include the colon, slash, and period.
Specifying Logical Addresses
The format of a logical address,
xf:e
, corresponds directly to the location in data
storage.
Where:
Is the:
x
File type: O—output
T—timer
I—input
C—counter
S—status
R—control
B—binary
N—integer
f
File #:
0—output
4—timer
1—input
5—counter
2—status
6—control
3—binary
7—integer
:
File delimiter: Colon or semicolon delimiter separates file and structure/word numbers.
e
Element number: 0 to: 0—output
39—timer
1—input
31—counter
32—status
15—control
31—binary
104—integer