Rockwell Automation 1785-LTx,D17856.2.1 Classic PLC-5 Programmable Controllers Users Manual - Manual (Page 46)

Assigning Addressing Modes,
Racks, and Groups
Chapter 4
4-4
8-Point I/O Modules
Eight-point digital discrete I/O modules have a maximum of eight inputs or
up to eight outputs. Because they do not interfere with each other’s I/O
image, you can place any mix of 8-point I/O modules (including
bidirectional modules, such as block-transfer modules) in any order.
00
01
02
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17 16 15 14 12 10 07 06 05 03 02 01 00 04 11 13
17 16 15 14 12 10 07 06 05 03 02 01 00 04 11 13
14965
2ĆSlot I/O Group with One 8Ćpt Input Module
and One 8Ćpt Output Module
This I/O group uses 8 bits of the input image table and
8 bits of the output image table.
Output
Terminals
Input
Terminals
2-Slot
I/O Group
Output ImageĆTable Word Corresponding to the I/O Group.
Input ImageĆTable Word Corresponding to the I/O Group.
Unused Output Bits Used
Input Bits Used Always 0
00
01
02
03
04
05
06
07
10
11
12
13
14
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17 16 15 14 12 10 07 06 05 03 02 01 00 04 11 13
17 16 15 14 12 10 07 06 05 03 02 01 00 04 11 13
2-Slot
I/O Group
11867
2ĆSlot I/O Group with Two 8Ćpt Input Modules
This I/O group uses 16 bits of the input image table.
Input
Terminals
Input
Terminals
Output ImageĆTable Word Corresponding to the I/O Group.
Input ImageĆTable Word Corresponding to the I/O Group.
Unused