Rockwell-automation 1791R-XXXX CompactBlock Distributed I/O on Remote Bedienungsanleitung PDF herunterladen (Seite 22)

22 CompactBlock Distributed I/O on Remote I/O Series D

Publication

1791R-IN002B-EN-P - August 2003

Communicate With the 1791R Module

Determine the Baud Rate for Yo u r R e m ote I /O C o n ne c t io n

Use the DIP switches to set the baud rate before you power up the module.

Refer to the following table for baud rate specifications.

I/O Image Word/Bit Definitions

The smallest portion of a scanners I/O image that can be allocated to a single

Remote I/O device is two logical groups or 1/4 logical rack. A device’s

starting group must begin at even group numbers (0, 2, 4, or 6). See your

scanner documentation for further details.

All combinations of 1791R base and expansion modules will fit in the space

allocated by 1/4 logical rack, except for the 1791D-N4CV2X analog module,

which fits in a 3/4 rack.

I/O images for 1791 Remote I/O base modules follow.

Baud Rate Cable Length

57.6KBPS 3048m

115.2KBPS 1524m

230.4KBPS 762m

16B0

17 16 15 14 13 12 11 10 7 6 5 4 3 2 1 0

Input

Image

In

15

In

14

In

13

In

12

In

11

In

10

In

9

In

8

In

7

In

6

In

5

In

4

In

3

In

2

In

1

In

0

Input

Image

Reserved

Output

Image

Reserved

Output

Image

Reserved

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 35 36

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