Rockwell Automation 1791-IOBB USER MANUAL - Manual (Page 17)

Installing Block I/O
Chapter 3
3Ć6
Blocks must be wired in series as shown in Figure 3.6 or Figure 3.7. Do
not attempt to wire any block in parallel.
The number of blocks used depends not only on the user requirements but
also on the system used. Refer to Table 3.A for maximum block usage for
individual systems.
Figure 3.6
Series Connection for Block I/O Using PLC-2, PLC-3 or PLC-5 Family
Programmable Controllers
Install terminating resistor on last block.
To Programmable Controller
or I/O Scanner Module
1 I/O Rack
1 I/O Rack
1 I/O Rack
1 I/O Rack
10833-I
Remote I/O Link or
Distributed I/O Link Wiring