Rockwell-automation 855T DeviceNet Stack Light User Manual Manual do Utilizador descarregar pdf (Página 42)

Publication 855T-UM001C-EN-P May 2005

Chapter

Off-Line Node Recovery

Chapter Objectives

Overview

The Bulletin 855T Stack Light is equipped with a function known as Off-Line Node

Recovery. Off-Line Node Recovery is used mainly to commission a device on a network.

When a new product is put on the network, it is at a default address of Node 63. If multiple

units are placed on a network without first using node commissioning to change the node

address a duplicate MAC ID error occurs. This means that more than one device is located at

the same node address and only one of them is allowed online. Off-Line Node Recovery now

allows you to recover the faulted devices and change the node address. This is a powerful tool

because multiple nodes can be put on the network on installation and recovered one at a time

without having to continually reset the network. The following section will walk through a

sample recovery.

Note: If the MAC ID is set through the rotary switches, Off-Line Node Recovery will not be

able to recover the faulted device because it cannot change the node address.

Table 6.A

Section Page Section Page

Overview 6-1 Sample Recovery 6-2

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 71 72

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Rockwell-automation 855T DeviceNet Stack Light User Manual Manual do Utilizador Página 42