Rockwell-automation 1775-MX_S4A,D17756.3.1 User Manual PLC-3 BACKUP CO Manual de usuario descargar pdf (Pagina 30)

Installing a Backup System

Chapter 2

2-15

There are four I/O serial communication channels per scanner. Depending

on your system architecture, you can use one or more of them for:

I/O communication

Peer-to-peer communication

Backup communication

To do this, you connect I/O cables to the terminal swing arm and configure

each channel for the type of communication desired. You configure I/O

channels by using LIST.

Figure 2.13 shows how to identify the terminals on a terminal swing arm.

Figure 2.13

I/O

Cables Terminate at Terminal Swing Arms

Line 1

Shield

Line 2

Line 1

Shield

Line 2

Channel

No. 4

Channel

No. 2

Line 1

Shield

Line 2

Line 1

Shield

Line 2

Channel

No. 3

Channel

No. 1

10044

Important: For 1775-S4A or -SR scanner modules used as the number

one scanner, when using I/O channel 5 to communicate with a peripheral

device, I/O channel 4 of the number one scanner module cannot be used.

Do not make any connections to I/O channel 4.

Connecting the I/O

Channel Wiring

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 118 119

Sin comentarios

Rockwell-automation 1775-MX_S4A,D17756.3.1 User Manual PLC-3 BACKUP CO Manual de usuario Pagina 30