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Overview (continued)

Industrial Wireless Communication

Industrial Wireless LAN (IWLAN)

Application examples

Uninterrupted roaming between the office and automation network by using wireless LAN controllers and Industrial Wireless LAN controllers

By using the SCALANCE WLC Industrial Wireless LAN controller

along with controller-based access points, it is possible to estab-

lish a single wireless infrastructure for the entire company.

This achieves a high level of flexibility, since mobile nodes

(e.g. laptop, PDA, WLAN telephone) can move anywhere, roam-

ing seamlessly between the office and automation networks.

This allows wireless access to data from any location within the

company. Thanks to the use of a centralized security mechanism

for each user group (Virtual Network Services VNS), the data is

protected against unauthorized access and manipulation.

The SCALANCE W78xC controller-based access points support

the WLAN standards IEEE 802.11a/b/g and 802.11n, and they

are connected via Gigabit Ethernet to the SCALANCE WLC

IWLAN controller.

Operation always requires the SCALANCE WLC711 IWLAN

controller that permits the configuration of access points in

groups. This significantly increases the manageability of an

widespread IWLAN infrastructure. Central management with the

IWLAN controller also permits recording of faults/errors as well

as monitoring and documentation of statistics.

Office network Plant network

Seamless roaming between office- and plant networks

S7-300 with

CP 343-1

Network

management

S7-300 with CP 343-1

WLAN

telephone

IP telephone

system

IP telephone

Database

Smartphone

Enterasys

AP3705

(IEEE

802.11a/b/g)

SCALANCE

W786C-2 RJ45

(IEEE 802.11a/b/g/n)

SCALANCE

W788C

(IEEE 802.11a/b/g/n)

Enterasys

AP3710i

(IEEE

802.11a/b/g/n)

Enterasys Wireless Controller

Laptop

Router

SCALANCE

W748-1 RJ45

Ethernet

Industrial Ethernet

G_IK10_XX_30175

SCALANCE

WLC711

IWLAN Controller

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