Configuring the rs-485 network – Rockwell Automation 22-COMM-E EtherNet/IP Adapter User Manual

Page 65

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Using Multi-Drive Mode

7-5

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.

Important: Parameters A105 - [Comm Loss Action] and A106 -

[Comm Loss Time] in the daisy-chained drives are still
used in Multi-Drive mode. If the RS-485 cable is
disconnected or broken, the disconnected drive(s) will take
the corresponding Comm Loss Action(s). On the EtherNet/
IP side, Parameters 18 - [Comm Flt Action] and 19 -
[Idle Flt Action]
in the 22-COMM-E determine the action
taken for ALL of the drives on the Multi-Drive node.

The following Multi-Drive parameters must be set in the 22-COMM-E:

After setting the 22-COMM-E parameters, set the Operating Mode
Switch (SW1) from Single drive operation to Multi-Drive operation (set
to ON position), and reset the adapter or cycle power. Refer to

Chapter 2

,

Setting Operating Mode and Web Pages Switches

.

Important: 22-COMM-E parameters can be set using a DSI peripheral

(HIM, DriveExplorer with 22-SCM-232, etc.) ONLY when
the Operating Mode Switch is in the Single mode position
(SW1 = OFF).

Configuring the RS-485 Network

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”)

Parameter

Value

22 - [DSI 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

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