Rockwell Automation 20-COMM-P Profibus Adapter User Manual
Page 58
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
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