Rockwell Automation 25-COMM-P PowerFlex PROFIBUS DPV1 Adapter - Manual (Page 57)

Rockwell Automation Publication 520COM-UM004A-EN-E - November 2013 57
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 to 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 master’s point of view.
Therefore, output I/O is data that is output from the master and consumed by
the PROFIBUS DP adapter. Input I/O is status data that is produced by the
adapter and consumed as input by the master.
The I/O image table will vary based on the configuration of
Host 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 58 is an illustration of the
Multi-drive I/O image with 16-bit words.
To PowerFlex 525 with
25-COMM-P
To Drive #2 To Drive #3 To Drive #4 To Drive #5
120
Ω
, 1/4 W
resistor
120
Ω
, 1/4 W
resistor