* Question
| When considering installing a WirelessHART network, what are the recommendations that are very important? |
* Answer
| 1) For security reasons, device information must be pre-configured to the network manager in the WirelessHART network.This information will be used to check security and authentication as the device joins the network.Adding a key is essential to decrypt the payload of the incoming network request message.However, when we replace a failed device, the way the device ID is used to verify the device will give the network manager some extra work.
2) When the network manager configures a unicast link between two devices, the sender does not send any packets until the receiving link is configured to the receiver.For example, how does an engineer know where a device should be installed? Therefore, the real key is to install the right type of device in the right place.The label of the device may identify the physical location of the device.The WirelessHART network requires a highly accurate clock to keep time synchronized.However, not all devices meet the requirements in this regard.Therefore, the network manager should set a shorter keep-alive time interval for these devices.For example, we can find the most suitable location for routing devices through site surveys, so that we can get the strongest signal strength and the least routing equipment.7) If no new device wants to join the network, the field device can stop sending notification messages.The network manager should avoid this when configuring the link, because in this case the new device will not know who to choose to join the network link. |
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