Rockwell Automation RECOMM-CNET ControlNet Communications Module - Manual (Page 53)

PLC-5C Applications 6-3
An image that uses 32-bit words for Reference and Datalinks A and
D would change the I/O image in figure 6.1 as follows:
Figure 6.1 – Sample I/O Image with All I/O Enabled
Controller Scanner Module SP600 Drive
ControlNet DPI
Output
Image
(Write)
Message
Handler
Input
Image
(Read) 0 Logic Status
1 Feedback
2 Datalink Out A1
3 Datalink Out A2
4 Datalink Out B1
5 Datalink Out B2
6 Datalink Out C1
7 Datalink Out C2
8 Datalink Out D1
9 Datalink Out D2
0 Logic Command
1 Reference
2 Datalink In A1
3 Datalink In A2
4 Datalink In B1
5 Datalink In B2
6 Datalink In C1
7 Datalink In C2
8 Datalink In D1
9 Datalink In D2
Logic Status
Feedback
Data Out A1
Data Out A2
Data Out B1
Data Out B2
Data Out C1
Data Out C2
Data Out D1
Data Out D2
Word and I/O
Message
Handler
Message
Handler
Message
Buffer
Message
Buffer
Message
Handler
Logic Command
Reference
Data In A1
Data In A2
Data In B1
Data In B2
Data In C1
Data In C2
Data In D1
Data In D2
Word I/O Word I/O
0 Logic Command/Status 8 - 11 Datalink B1/B2
1 Pad Word 12 - 15 Datalink C1/C2
2 - 3 Reference/Feedback 16 - 19 Datalink D1/D2
4 - 7 Datalink A1/A2