Vega WHA-GW-WIRELESSHART GATEWAY Manuel d'utilisateur télécharger pdf (Page 12)

221981 2011-07

WHA-GW-*

Product Specifications

2.2.1 Network Management

The WirelessHART Gateway contains a network manager. The network manager takes

care of the wireless communication between the WirelessHART field devices. The network

manager takes care of the creation and maintenance of the wireless mesh network to

ensure proper communication between the WirelessHART field devices.

Figure 2.2Network management

First, the network manager sends advertising messages to announce the network’s

existence. When a WirelessHART field device receives such an advertising message, it

tries to join the network. If the WirelessHART field device can identify itself with the same

network ID and join key as stored in the WirelessHART Gateway, the field device is allowed

to join the network. Otherwise, the field device will be rejected.

The network manager can also instruct already joined devices to advertise on its behalf.

1 Step 1: Advertising

2 Step 2: Joining

3 Step 3: Scheduling

4 WirelessHART Gateway

5 WirelessHART field device

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 95 96

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Vega WHA-GW-WIRELESSHART GATEWAY Manuel d'utilisateur Page 12