Allen-Bradley 22-COMM-E FRN 1.xxx, User Manual

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7-6 Using Multi-Drive Mode
The example ladder logic program demonstrates using Multi-Drive
mode with five drives. See
Figure 7.2 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. This example program enables you to:
•
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 Operating Mode Switch (SW1) on the adapter is set to the
Multi-Drive operation position. See
Chapter 2 , Setting Operating
Mode and Web Pages Switches .
•
The following adapter parameters are set:
Multi-Drive Ladder Logic Program Example
Parameter Value Description
22 - [DSI I/O Cfg] 4 “Drives 0-4” — 5 drives on 1 node
24 - [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
25 - [Drv 1 Addr]
(1)
2 Modbus address of Drive 1
26 - [Drv 2 Addr]
(1)
3 Modbus address of Drive 2
27 - [Drv 3 Addr]
(1)
4 Modbus address of Drive 3
28 - [Drv 4 Addr]
(1)
5 Modbus address of Drive 4