The Scalance W is:
Industrial use of radio technology requires especially reliable connections. Modulation tolerant to faults has been included in Standard 802.11 b/g and a. The data rate is reduced at defined steps to maintain the radio link even for large distances or in the event of reflections from metal objects. All this is part of the IEEE 802.11 standard with data rates up to 54 Mbit/s at 2.4 GHz and 5 GHz. Moreover, both bands support the turbo mode function with up to 108 Mbit/s in which two neighboring channels are combined. Turbo mode, however, does not comply with IEEE. In addition to the common WLAN standard, the Industrial WLAN from SIMATIC NET offers an expansion that provides selected subscribers with a defined data rate, i.e. IWLAN offers deterministic data transfer based on the shared WLAN medium. IWLAN supports the targeted monitoring of a subscriber's connection to the Robust Access Point in order to implement immediate countermeasures in the event of an interruption in the connection or exiting of the radio cell.
Rugged
Use in harsh industrial environments requires rugged products, especially if they are to be used outside control cabinets. IWLAN components from SIMATIC NET have been designed with IP65 degree of protection and for operating temperatures between –20°C and +60°C with condensation and fulfill the strict SIMATIC requirements with respect to shock and vibrations. The connectors are vibration-proof and shake-proof.
And offers:
DATA SECURITY Protection against unauthorized access and data encryption are requirements which are not only needed for transmitting secret recipes. Industrial WLAN complies strictly with the 802.11 IEEE and WiFI (Wireless Fidelity) specifications to permit a high degree of interoperability. The new WPA (WiFi Protected Access) mechanisms and encryption with AES (Advanced Encryption Standard) have rectified the known security problems of WLAN and WEP (Wired-Equivalent-Privacy).
Plant Availability
Downtimes of segments and connected Industrial Ethernet network stations are minimized in the event of a fault through use of the C-PLUG. C-PLUG permits fast and simple device replacement of SIMATIC NET components without reconfiguration of the spare part.
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