Allen-Bradley 1771-ASB User Manual

Addressing Modes for Your Remote I/O
Chapter 3
3-4
Using Standarddensity I/O (8 point) Modules
Standard-density I/O modules provide eight input terminals or eight output
terminals. Figure 3.3 illustrates the 2-slot I/O group concept with two
8-point input modules. Figure 3.4 shows an 8-point input module and an
8-point output module in a 2-slot I/O group.
Figure 3.3
Two
8point Input Modules Using One Word of the Input Image T able
Input
Terminals
00
01
02
03
04
05
06
07
Input
Terminals
10
11
12
13
14
15
16
17
17 161514 12
10
07
06
05 03
0201
00
04
11
13
Outputimagetablewordcorresponding
totheI/Ogroup.
unused
17 161514 12
10
07
06
05 03
020100
04
11
13
Inputimagetablewordcorresponding
totheI/Ogroup.
11867
2slot I/O Group

Allen-Bradley 1771-ASB Specifications

General

Brand	Allen-Bradley
Model	1771-ASB
Category	I/O Systems
Language	English