Replacing An Io Device Without Exchangeable Medium - Siemens SIMATIC ET 200AL System Manual

Distributed i/o system

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5.8 Device replacement without exchangeable medium

Principles of name assignment

The failure of the "Mill" IO device is considered here.

1. The IO controller queries the device name of the replaced IO device.

2. The IO controller detects that the IO device with the device alias "port-002.Press" does

not have a device name.

3. The IO controller assigns the device name "Mill" to the replaced IO device via the device

alias "port-002.Press" of the failed IO devices.

If you insert a device with the Device replacement without exchangeable medium/PG

PROFINET functionality at a different location than the configuration, a different device

name is then assigned to the device.

Reset a wrongly inserted device to delivery state before you use it again.

Replacing an IO device without exchangeable medium

Introduction

Replacement of IO devices is sometimes frequently required in automation systems. The IO

devices are generally assigned a device name by either inserting an exchangeable medium

or via the programming device. The CPU identifies the IO device by using these device

Under certain circumstances, replacing an IO device can be done without inserting an

exchangeable medium or without the PG.

PROFINET with STEP 7 V15

Function Manual, 12/2017, A5E03444486-AH

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