Rockwell-automation 22-COMM-C ControlNet Adapter User Manual Page 75

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Using Multi-Drive Mode 7-7
The following parameters in each daisy-chained drive must be set to
these values:
Note that 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 drives that
are daisy chained 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). Drive parameter A106 - [Comm Loss
Time] is not used in Multi-Drive mode. For a network
disruption, adapter Parameters 08 - [Comm Flt Action]
and 09 - [Idle Flt Action] 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-C:
After setting the 22-COMM-C parameters, set the Operating Mode
Jumper (J7) from “1x” (Single mode) to “5x” (Multi-Drive) operation,
and reset the adapter or cycle power to invoke the change. Refer to
Setting Operating Mode and Node Address Switches
on page 2-1.
Important: The 22-COMM-C parameters can be set using a DSI
peripheral (HIM, DriveExplorer with 22-SCM-232, etc.)
ONLY when the Operating Mode Jumper is in the “1x”
(Single mode) position.
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
12 - [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
14 - [Drv 0 Addr] Equal to Drive 0 parameter A104 - [Comm Node Address]
15 - [Drv 1 Addr] Equal to Drive 1 parameter A104 - [Comm Node Address]
16 - [Drv 2 Addr] Equal to Drive 2 parameter A104 - [Comm Node Address]
17 - [Drv 3 Addr] Equal to Drive 3 parameter A104 - [Comm Node Address]
18 - [Drv 4 Addr] Equal to Drive 4 parameter A104 - [Comm Node Address]
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