Rockwell-automation 1791-XXXX Discrete I/O AC and DC Block I/O Input a Manual de usuario descargar pdf (Pagina 62)

Configuring Your Block I/O for PLC

Family Programmable Controllers

Chapter 4

4-5

The SLC 500 controllers communicate with the block I/O using an I/O

Scanner module (cat. no. 1747-SN series A). Refer to the user manual for

the 1747-SN/A Scanner module for more information.

Note: These block I/O modules are not compatible with the 1747-DSN

Distributed I/O Scanner module.

Each block I/O module uses 2 words of output image table memory and 2

words of input image table memory. Each block occupies 1/4 rack of data

table, with 4 blocks comprising 1 logical rack. Image table usage for one

assigned rack number and examples of image table usage are shown in

Figures 4.2 through 4.10.

Figure 4.2

I/O

Image T

able for One Assigned Rack Number with 16point Modules

Output Image

Input Image

Reserved

Reserved

0

1

2

3

4

5

6

7

Reserved

Reserved

Reserved

017

Reserved

Reserved

Reserved

Reserved

0

1

2

3

4

5

6

7

Reserved

Reserved

Reserved

710

1 I/O Rack

179116A0

17918AC

179116B0

17910B16

PLC

SLC

07815

SLC

07815

017 710

PLC

Reserved

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 97 98

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