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Hapter, Using multi-drive mode – Rockwell Automation DeviceNet Communications Module User Manual

Page 75

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Using Multi-Drive Mode

8-1

C

HAPTER

8

Using Multi-Drive Mode

Chapter 8 provides information and a ControlLogix ladder example
to explain how to use Multi-Drive mode.

8.1

Single-Drive Mode vs. Multi-Drive
Mode

Single-Drive mode is a typical network installation, where a single
DeviceNet node consists of a single drive with an MDCOMM-DNET
module (figure 8.1).

Multi-Drive mode is an alternative to the typical network installation,
where a single DeviceNet node can consist of one to five drives
(figure 8.2). The first drive must be an MD65 drive with an
MDCOMM-DNET module. The remaining drives can be MD65 or
MD60 drives, and they are daisy-chained over RS-485 with the first
drive.

!

ATTENTION: Hazard of injury or equipment
damage exists. The examples in this publication are
intended solely for purposes of example. There are
many variables and requirements with any
application. Rockwell Automation does not assume
responsibility or liability (to include intellectual
property liability) for actual use of the examples
shown in this publication.

Figure 8.1 – Example of a Single-Drive Mode Network

MD65 Drive
with MDCOMM-DNET

DeviceNet

1 drive per node

MD65 Drive
with MDCOMM-DNET

MD65 Drive
with MDCOMM-DNET