• Assess your application and surrounding environment - use common sense to deploy your wireless strategy.
  
• Second, deploy a network gateway, set the network ID, password and the level of security needed for the application.
  
• 3rd configure the HART device using your available software tools or handheld communicators, set the join key or password and the Network ID
  

• Move the device to the field location and make the process connection.
  
• The technician will then initiate a join request to an advertising gateway.
  
• For security purposes gateway advertisement may need to be turned on and off during this process
  
• Once the authorization is given and a schedule and routing path established, the device begins to publish data to the gateway.
  

As the network begins to grow there are 2 common topology to used – First is one called Point-to-point. We see a single gateway directly communicating “line of sight” to 3 devices.

This network topology has the least latency. However, this topology may not always be possible.

The more devices a network consists of, or as the distance grows from the gateway there becomes a need to change topology to a Mesh Network Topology.

As new devices are added to the network we see that are able to communicate with each other and pass data for other devices to the gateway.

While this topology may add latency to message transport it actually increases the reliability of the network by having redundant communication paths. This is important when an item or an event causes a communication problem – such as a truck or a large building crane causing communication problems.

Additional gateways may also be added to improve performance.

Point-to-Point and Mesh topologies are examples of how WirelessHART has built to be reliable and flexible.