Wireless Design; Basics - Siemens SIMATIC ET 200AL System Manual

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Wireless design

What is Industrial Wireless LAN?

In addition to data communication in accordance with the IEEE 802.11 standard, the

SIMATIC NET Industrial Wireless LAN provides a number of enhancements which offer

significant benefits for industrial customers. IWLAN is particularly suitable for demanding

industrial applications that require reliable wireless communication. This is supported by the

following properties:

● Automatic roaming when the connection to Industrial Ethernet is interrupted (Forced

● Cost savings generated by using a single wireless network for reliable operation of a

process with both process-critical data (alarm message, for example) and non-critical

communication (service and diagnostics, for example)

● Cost-effective connection to devices in remote environments that are difficult to access

● Predictable data traffic (deterministic) and defined response times

● Cyclical monitoring of the wireless link (link check)

Objectives and advantages of Industrial Wireless LAN

Wireless data transmission achieves the following objectives:

● Seamless integration of PROFINET devices into the existing bus system via the wireless

● Mobile use of PROFINET devices for different production-linked tasks

● Flexible configuration of the system components for fast development in accordance with

customer requirements

● Maintenance costs are minimized by savings in cables

PROFINET with STEP 7 V15

Function Manual, 12/2017, A5E03444486-AH

(http://www.profibus.com/nc/download/installation-

2.2 Setting up PROFINET

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