Rockwell-automation 1791-XXXX Discrete I/O AC and DC Block I/O Input a Bedienungsanleitung PDF herunterladen (Seite 55)

Installing Block I/O

Chapter 3

3-36

Blocks must be wired in series as shown in Figure 3.25 or Figure 3.26. 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 (page 3-1) for maximum

block usage for individual systems.

Figure 3.25

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 W

iring

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 97 98

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