Rockwell Automation 22-SCM-232 Serial Converter Module - Manual (Page 29)

Chapter
4
Controlling PowerFlex 4 and 40
Drives with Allen-Bradley Controllers
Chapter 4 illustrates how to use the 22-SCM-232 serial converter with
Allen-Bradley controllers to control and read/write data to PowerFlex 4
and 40 drives.
Any Allen-Bradley controller capable of initiating and receiving DF1
messages can be used with the 22-SCM-232 serial converter:
• MicroLogix 1000 (Series C or later discrete controllers, and all
analog controllers)
• MicroLogix 1200/1500
• SLC 5/03, 5/04, 5/05
• PLC5
• ControlLogix/CompactLogix
The 22-SCM-232 converts the protocol from DF1 to Modbus RTU, and
the media from RS232 to RS485. It can be used for point-to-point and
multiple drive applications (see
Figure 4.1 and Figure 4.2 respectively).
Important: DSI HIMs (22-HIM-*) and/or DSI communication adapters
(22-COMM-*) cannot be used in an Allen-Bradley
controller/22-SCM-232 system.
Topic Page
Controller Compatibility 4-1
Cabling Requirements 4-2
Messaging (MSG Instruction) 4-3
PowerFlex 4 and 40 Memory Addressing 4-4
Example Controller Programs 4-4
Controller Compatibility