Endress+Hauser SWA70, Руководство по эксплуатации

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3 Function and system design WirelessHART Adapter SWA70
16 Hauser
3 Function and system design
The WirelessHART Adapter is a smart wireless module that connects HART and 4 to 20 mA field
devices
to a WirelessHART network. The WirelessHART Adapter sends the measurement and diagnostics
information acquired from the field device to the WirelessHART Fieldgate in the form of radio
signals. The Fieldgate receives this information and makes it available in the system network.
Fig. 3-1: WirelessHART network
The WirelessHART network is self-organizing. After installation and configuration, every
WirelessHART Adapter is able to recognize its neighbors. It detects the strength of the radio signal,
receives frequency, timing and path information, and then establishes a connection to neighbors in
the wireless network. In this way, the network is organized without the need for the user to make
any settings.
The standard version of the WirelessHART Adapter has a plastic housing, and the hazardous-area
version (Ex version) is available with either an aluminum housing or a plastic housing. If a field
device is connected to an Ex version, it too must have an appropriate approval for use in hazardous
areas (Ex approval).
1 Host applications
2 Ethernet
3 WirelessHART Fieldgate
4 Field devices with wireless
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