Zigbee coordinator role and difference with terminal nodes

This article introduces the role of the zigbee coordinator and the difference with the terminal node.

The so-called coordinator is the manager of the network organization. For a general application mode, the coordinator is not necessary after a Zigbee network is formed. Its main function is to select a suitable parameter to establish a network according to the scanning situation.

Only one zigbee coordinator is allowed per zigbee network. The coordinator first selects a channel and network identifier (PAN ID) and then starts the network. Because the coordinator is the beginning of the entire network, he has the highest authority of the network, is the maintainer of the entire network, can also maintain the form binding for indirect addressing, while also designing the security center and performing other actions to maintain other devices on the network. Communication.

The coordinator is equivalent to the gateway, which is the core of the entire ZigBee network. All data is finally returned to the coordination point you mentioned; the nodes are divided into routing nodes and terminal nodes, and the routing nodes can be used as terminal nodes, and can also be connected to Other routing nodes and terminal nodes, and the terminal node is the last point of the entire network, can not be connected to other nodes, can only directly return data to the coordinator. See the picture below for details.

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