Wireless solutions adding a wide range of capabilities for real world applications

Endress+Hauser WirelessHART solutions provide you with more information about your process and plant for less cost. In many fields of application, having more information available is synonymous with being more productive.

Endress+Hauser offer complete wireless solutions. Benefit from our experience at every stage of your project: site survey, network design, positioning of gateways, selection of devices through to the integration of the process values in your selected host system.

WirelessHART network

The WirelessHART network is self-organizing. After installation and configuration, every wireless adapter is in a position to recognise its neighbours. It checks the strength of their signals, synchronizes them, receives frequency information and establishes connection with other participants in the network. The adapter joins the network automatically without any intervention from the user.

 

WirelessHART Adapter SWA70 transmits its information to a host application through a WirelessHART

Fieldgate SWG70. The figure below shows a typical meshed WirelessHART network architecture.

 

 

 

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WirelessHART technology

WirelessHART is the wireless standard of the HART Communication Foundation for use in process automation. It adds wireless capabilities to the HART protocol while maintaining compatibility with existing HART devices, commands and tools.

 

Learn more about HART communication protocol

WirelessHART protocol

The HART protocol has until now used the wired 4-20mA loop with a superimposed digital signal as as physical layer. Although full digital communication is available in multidrop mode, the majority of transmitters are connected to analog I/O cards and digital communication is used only for parametrization, diagnosis and maintenance purposes.

 

WirelessHART now allows for the wireless transmission of HART data. To be employable worldwide, WirelessHART utilizes the 2.4 GHz Band (IEEE 802.15.4 wireless network) as physical layer. The WirelessHART devices form a mesh network in which every device is not just a measurement point, but also a repeater. This results in a wider range for the whole network as well as increased reliability through redundant communication paths.

 

The network may comprise three types of devices:

  • WirelessHART gateway
  • WirelessHART field devices
  • WirelessHART adapters (either connected to 4-20 mA/HART devices or acting as repeaters)

 

The WirelessHART network is built up, organized and maintained by the fieldgate, which also takes care for connection to different HOST systems through different bus interfaces.

 

More information on our WirelessHART components

 

Supplementary documents

WirelessHART Solutions
... for real world applications
Competence Brochure
CP00013S/04/en

 

FieldCare

Plant Asset Management

Competence Brochure

CP001S/04/en

 

Inventory Control

Adds transparency to your bulk inventory

and optimizes your business operations 

Field of Activities

FA003S/04/en