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Hapter, Using explicit messaging – Rockwell Automation DeviceNet Communications Module User Manual

Page 61

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Using Explicit Messaging

7-1

C

HAPTER

7

Using Explicit

Messaging

Chapter 7 provides information and examples that explain how to
use Explicit Messaging to monitor and configure the module and the
connected MD65 drive.

7.1

About Explicit Messaging

Explicit Messaging is used to transfer data that does not require
continuous updates. With Explicit Messaging, you can configure
and monitor a slave device’s parameters on the DeviceNet network.

!

ATTENTION: 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. Failure to observe this
precaution could result in bodily injury or damage to
equipment.

ATTENTION: If Explicit Messages are programmed
to write parameter data to non-volatile storage
(NVS) frequently, the NVS will quickly exceed its life
cycle and cause the drive to malfunction. Do not
create a program that frequently uses Explicit
Messages to write parameter data to NVS. Failure
to observe this precaution could result in damage to,
or destruction of, equipment.