SIMATIC PCS 7 Process Control System - Siemens

9
Communication
Industrial Ethernet
Industrial Wireless LAN (IWLAN)
■ Overview
SIMATIC PCS 7 allows you to integrate mobile or stationary
remote clients into the OS-LAN (terminal bus) via a SCALANCE
W788-1PRO access point.
The following applications can be implemented in this manner:
• Use of additional remote OS clients (1 or 2 on IWLAN)
• Linking of Web clients to a SIMATIC PCS 7 Web server (1 or
2 on IWLAN)
• Remote access to an engineering station with application of
Remote Desktop (Windows XP or Server 2003 operating system)
or PC Anywhere, e.g. during commissioning
Mobile remote clients (e.g. notebooks) possessing a WLAN interface
can communicate with the access point via it. Stationary
remote clients in a desktop/tower housing (SIMATIC PCS 7 Industrial
Workstations) require a SCALANCE W746-1PRO Ethernet
client module for the IWLAN communication with the access
point.
SCALANCE W746-1PRO Ethernet client module and
SCALANCE W788-1PRO access point are both very rugged,
use state-of-the-art authentication and encryption procedures,
and guarantee high reliability of the radio channel.
Note:
Please note that Industrial Wireless LAN is not approved of as a terminal
bus (OS-LAN) or plant bus of SIMATIC PCS 7.
9/30
SCALANCE
X414-3
Engineering station
Mobile remote client
with WLAN interface
OS clients
OS-LAN
(terminal bus)
Redundant
OS server
Access point
SCALANCE W788-1PRO
Ethernet
Client module
SCALANCE
W746-1PRO
Siemens ST PCS 7 · November 2007
PCS 7
Web server
SCALANCE
X204-2/X208
Stationary
remote client
© Siemens AG 2007
■ Design
SCALANCE W746-1PRO Ethernet client module
The SCALANCE W746-1PRO Ethernet client module is highly
suitable for integrating devices with an Industrial Ethernet connection
into Industrial Wireless LAN (IWLAN) radio networks with
reliable communication. The SCALANCE W746-1PRO Ethernet
client module handles the radio connection for a maximum of
eight connected devices with Ethernet interface. If one of the
connected devices is exchanged, the Ethernet client module
recognizes this immediately and administers the new address.
Special features of the SCALANCE W746-1PRO Ethernet client
module
• Versatile power supply facilities (operation on 100 V to 240 V
AC network with PS791-1PRO power supply)
• Antenna diversity for reliable reception in complex radio environments
with two ANT795-4MR omnidirectional antennas
screwed onto the housing, can be replaced by other types
from the SCALANCE W700 range
• Transmission rate up to 54 Mbit/s at 2.4 GHz and 5 GHz with
radio approval in more than 30 countries
• Conforms to the IEEE 802.11b/g and IEEE 802.11a standards
• High reliability through reservation of data transfer rate with
IWLAN communication with SCALANCE W788-1PRO access
point
• WPA and 128-bit encryption (AES) for high security against illegal
access
• Rugged metal enclosure resistant to shock and vibration, and
with IP65 dust protection
• Suitable for ambient temperatures from -20 to +60°C (resistant
to condensation)
For further information and detailed technical specifications, refer
to Catalog IK PI, the A&D Mall or Catalog CA 01 under "Communication/networks,
SIMATIC NET communication systems, Industrial
mobile communication".