Rockwell Automation MD65 EtherNet/IP Communication Module - Manual (Page 70)

8-6 EtherNet/IP Communications Module
8.4 Configuring the RS-485 Network
Table 8.2 shows the parameters that must be set in the daisy-
chained drives.
Note: The RS-485 network is fixed at 19.2K baud, 8 data bits, no
parity, and 1 stop bit.
Important:Parameter A105 (Comm Loss Action) in the daisy-
chained drives is still used in Multi-Drive mode. If the
RS-485 cable is disconnected or broken, the
disconnected drive(s) will immediately take the
corresponding Comm Loss Action(s). On the EtherNet/
IP side, parameters 18 (Comm Flt Action) and 19 (Idle
Flt Action) in the MDCOMM-ENET determine the action
taken for ALL of the drives on the Multi-Drive node.
Table 8.3 shows the Multi-Drive parameters that must be set in the
MDCOMM-ENET.
After setting the MDCOMM-ENET parameters, set the Operating
Mode Switch (SW1) from Single drive operation to Multi-Drive
operation (set to ON position), and reset the module or cycle power.
Table 8.2 – Parameters for daisy-chained drives
Parameter Value
P36 (Start Source) 5 (Comm Port)
P38 (Speed Reference) 5 (Comm 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”)
Table 8.3 – Parameters for MDCOMM-ENET
Parameter Value
22 (MDI I/O Cfg) 0 = Drive 0 connected
1 = Drives 0-1 connected
2 = Drives 0-2 connected
3 = Drives 0-3 connected
4 = Drives 0-4 connected
24 (Drv 0 Addr) = Parameter A104 (Comm Node Address) in Drive 0
25 (Drv 1 Addr) = Parameter A104 (Comm Node Address) in Drive 1
26 (Drv 2 Addr) = Parameter A104 (Comm Node Address) in Drive 2
27 (Drv 3 Addr) = Parameter A104 (Comm Node Address) in Drive 3
28 (Drv 4 Addr) = Parameter A104 (Comm Node Address) in Drive 4