Brochure/Catalogue

Industrial WLAN introduction
(WKHUQHW
$FFHVV
3RLQW
$3FOLHQW
3/&
0RELOHGHYLFH
$FFHVVSRLQW²FOLHQWRSHUDWLRQ %ULGJHPRGH²SRLQWWRSRLQW
8VHULQWHUIDFH
$3FOLHQW
$3FOLHQW
3/&
3/&
3/&
/$1
VHJPHQW
/$1
VHJPHQW
%ULGJHPRGH²/$1WR/$1
'ULYHUOHVVWUDQVSRUWYHKLFOH
FOLHQW
5RDPLQJ
FRQQHFWLRQ
$FFHVVSRLQW $FFHVVSRLQW $FFHVVSRLQW$FFHVVSRLQW
Alarm
Warning
Alarm
E-mail alerts
Access Point
DO
DI
Wireless operating modes
The most common operating mode for wireless networks
are AP client mode (Access Point) and bridge mode.
In AP-client mode an Access Point is necessary to set up
a Basic Service Set (BSS) for a wireless connection. The
AP can be used to create a wireless LAN, or to connect an
existing WLAN with a wired network. Bridge mode offers a
simple way to connect two Ethernet devices over a point-to-
point connection wirelessly with one another.
Turbo roaming for uninterrupted connections
A WLAN radio cell has a limited range depending on the
antenna used. To maintain communications between
devices which move over a long distance requires the
connection to be passed from one access point to another.
Performance can be affected where there are many moving
devices and a large number of transfer points without
powerful roaming technology. It is the roaming technology
that offers a seamless wireless connection and permits
a swift change between different wireless access points
without the risk of interruption to the data communication.
Integrated digital inputs / outputs
Wireless access points are often located in distant or
inaccessible places in an industrial plant. This makes
monitoring the status of a device, or its environment by the
system administrators, a difcult task. Weidmüller’s WLAN
access points therefore have an integrated digital input/
output which sends alarm messages over the network in
real time to the responsible maintenance personnel when
errors, like power supply failures, or link breaks, occur.
E
Industrial WLAN
E.32596860000