Rockwell Automation DeviceNet Communications Module - Manual (Page 79)

Using Multi-Drive Mode 8-5
8.4 Configuring the RS-485 Network
The following parameters must be set in the daisy-chained drives:
Note that the RS-485 network is fixed at 19.2K baud, 8 data bits, no
parity, and 1 stop bit.
Figure 8.5 – Example of Multi-Drive I/O Image
Controller Scanner Module
MD65 Drive 0
DeviceNet MDI
Output
Image
(Write)
Input
Image
(Read)
Message
Handler
Message
Buffer
Word and I/O
0 Logic Command
1 Reference
2 Logic Command
3 Reference
4 Logic Command
5 Reference
6 Logic Command
7 Reference
8 Logic Command
9 Reference
0 Logic Status
1 Feedback
2 Logic Status
3 Feedback
4 Logic Status
5 Feedback
6 Logic Status
7 Feedback
8 Logic Status
9 Feedback
MD65 Drive 1
MD65 Drive 2
MD65 Drive 3
MD65 Drive 4
MD65 Drive 0
MD65 Drive 1
MD65 Drive 2
MD65 Drive 3
MD65 Drive 4
Parameter Value
P36 - (Start Source) 5 (“RS485 [MDI] Port”)
P38 - (Speed Reference) 5 (“RS485 [MDI] Port”)
A103 - (Comm Data Rate) 4 (“19.2K”)
A104 - (Comm Node Addr) 1-247 (must be unique)
A107 - (Comm Format) 0 (“RTU 8-N-1”)