Rockwell Automation 20-COMM-P Profibus Adapter User Manual

Page 58

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5-8

Using I/O Messaging

The two PROFIBUS adapters are setup as Station 1 and Station 2, and
are configured as 14 words input & output each (See

Chapter 4

.)

SLC Data Table

Read Data
File N10: contains the actual read data that can be used elsewhere
in the ladder program.

Write Data

The Profibus scanner is configured for 28 bytes (14 words) of
outputs for each drive. Two drives require 48 bytes (28 words).

Station 1
Address

Station 2
Address

Function

N10:0

N10:14

Logic Status

N10:1

N10:15

Feedback

N10:2

N10:16

Datalink A1

N10:3

N10:17

Datalink A2

N10:4

N10:18

Datalink B1

N10:5

N10:19

Datalink B2

N10:6

N10:20

Datalink C1

N10:7

N10:21

Datalink C2

N10:8

N10:22

Datalink D1

N10:9

N10:23

Datalink D2

N10:10

N10:24

Parameter Access Word 1

N10:11

N10:25

Parameter Access Word 2

N10:12

N10:26

Parameter Access Word 3

N10:13

N10:27

Parameter Access Word 4

Station 1
Address

Station 2
Address

Function

N20:0

N20:14

Logic Command

N20:1

N20:15

Reference

N20:2

N20:16

Datalink A1

N20:3

N20:17

Datalink A2

N20:4

N20:18

Datalink B1

N20:5

N20:19

Datalink B2

N20:6

N20:20

Datalink C1

N20:7

N20:21

Datalink C2

N20:8

N20:22

Datalink D1

N20:9

N20:23

Datalink D2

N20:10

N20:24

Parameter Access Word 1

N20:11

N20:25

Parameter Access Word 2

N20:12

N20:26

Parameter Access Word 3

N20:13

N20:27

Parameter Access Word 4

20COMM-UM006A-EN-P.book Page 8 Friday, September 28, 2001 10:43 AM

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