Multi-drive ladder logic program example, Multi-drive ladder logic program example -6 – Rockwell Automation 22-COMM-D DeviceNet Adapter User Manual
Page 78
7-6
Using Multi-Drive Mode
The example ladder logic program demonstrates using Multi-Drive
mode with five drives. See
for a system layout diagram.
Function of the Example Program
The example program provided is for the ControlLogix, but other
controllers can also be used. The following actions can be performed:
• View status information from the drives such as Ready, Fault, At
Speed, and Feedback.
• Control the drives using various Logic Command bits (Stop, Start,
etc.) and Reference.
• Perform a single parameter read and write for each drive. The
example uses drive Parameter 39 - [Accel Time] for both so you
can see (read) the change after a write is performed.
Adapter Settings for the Example Program
• The Mode Jumper on the adapter is set to the Multi-Drive operation
position. See
• All DIP switches on the adapter are set to CLOSED (all 0’s). See
. The actual node address will
be set via a software parameter.
• The following adapter parameters are set:
Multi-Drive Ladder Logic Program Example
Parameter
Value
Description
02 - [DN Addr Cfg]
1
DeviceNet node address
15 - [DSI I/O Cfg]
4
“Drives 0-4” — 5 drives on 1 node
17 - [Drv 0 Addr]
(1)
(1)
The settings for these parameters must match the Parameter A104 -
[Comm Node Addr] settings in the respective drives.
1
Modbus address of Drive 0
18 - [Drv 1 Addr]
2
Modbus address of Drive 1
19 - [Drv 2 Addr]
3
Modbus address of Drive 2
20 - [Drv 3 Addr]
4
Modbus address of Drive 3
21 - [Drv 4 Addr]
5
Modbus address of Drive 4