Rockwell Automation 1791-I0VW USER MANUAL - Manual (Page 11)

Introducing Block I/O
Chapter 1
1-6
Figure 1.6
Block I/O Connection in a PLC System
Block I/O Ć each block
is 1/4 I/O rack.
Programmable Controller
or Scanner
10915ĆI
Blocks are daisyĆchained to a
programmable controller or scanner.