Owner manual

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:0to15
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