
Rockwell Automation Publication 520COM-UM001B-EN-E - March 2013 85
Using Multi-Drive Mode Chapter 7
• Since the RS-485 ports are used for daisy-chaining the drives, there is no
connection for a peripheral device such as a HIM or USB converter
module (1203-USB). DSI Splitter cables cannot be used to add a second
connection for a peripheral device.
System Wiring
To daisy-chain the drives of the PowerFlex 525, the AK-U0-RJ45-TB2P terminal
block connector can be used for easy installation.
The wiring diagram for using AK-U0-RJ45-TB2P terminal block connectors is
shown below.
The AK-U0-RJ45-TB2P comes with (5) terminal block connectors and (2)
terminating resistors.
Understanding the I/O Image
The terms input and output are defined from the scanner’s point of view.
Therefore, Output I/O is data that is output from the scanner and consumed by
the EtherNet/IP adapter. Input I/O is status data that is produced by the adapter
and consumed as input by the scanner.
The I/O image table will vary based on the configuration of parameters C169
[MultiDrv Sel] and C175 [DSI I/O Cfg]. The image table always uses
consecutive words starting at word 0.
The Multi-Drive Example of I/O Image
on page 86 is an illustration of the
Multi-drive I/O image with 16-bit words.
To PowerFlex 525 with
embedded EtherNet/IP
To Drive #2 To Drive #3 To Drive #4 To Drive #5
120 Ω, 1/4 W
resistor
120 Ω, 1/4 W
resistor
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