Rockwell Automation 25-COMM-E2P PowerFlex 25-COMM-E2P Dual-Port EtherNet/IP Adapter - Manual (Page 88)

88 Rockwell Automation Publication 520COM-UM003A-EN-E - June 2013
Chapter 7 Using Multi-Drive Mode
Single-Drive Mode Example for Network
Multi-drive mode is an alternative to the typical network installation, where a
single EtherNet/IP node can consist of one to five drives (see
Multi-Drive Mode
Example for Network on page 88 ). The first drive must be a PowerFlex 520-series
drive. The remaining drives can be any PowerFlex drive which supports Multi-
drive mode.
Multi-Drive Mode Example for Network
Benefits of Multi-drive mode include:
• Lower hardware costs. No need to purchase additional communication
adapters for daisy-chained drives.
• Reduces the network node count. For example, in Single-drive mode 30
drives would consume 30 nodes. In Multi-drive mode, 30 drives can be
connected in 6 nodes.
• Controller can control, monitor, and read/write parameters for all five
drives.
The trade-offs of Multi-drive mode include:
• If the PowerFlex 520-series drive with Dual-port EtherNet/IP adapter is
powered down, then communications with the daisy-chained drives is
disrupted and the drives will take the appropriate communications loss
action set in each drive.
IMPORTANT For the examples in the chapter, we will use the PowerFlex 525 as a master
drive with four daisy-chained PowerFlex 4M drives.
Esc Sel Esc Sel Esc Sel
One drive per node
EtherNet/IP
PowerFlex 525 with
25-COMM-E2P PowerFlex 525 with
25-COMM-E2P PowerFlex 525 with
25-COMM-E2P
Esc Sel
Up to 5 drives per node
EtherNet/IP
Up to four daisy-chained PowerFlex drives
(PowerFlex 4M shown)
RS-485 cable
PowerFlex 525
with
25-COMM-E2P
as master drive
AK-U0-RJ45-TB2P connector with
terminating resistor (120
Ω
)
AK-U0-RJ45-TB2P connector with
terminating resistor (120
Ω
)
AK-U0-RJ45-TB2P