Viewing Devices
Overview
After a device is created, you can view the device password and details, force the device to go offline, and edit device information.
Functions
After a device is created, you can view or operate the device by referring to the following table.
Function |
Description |
---|---|
Viewing device passwords |
A device password can be used as a credential for accessing a device. Click on the right of the Password column to view the device password. |
Editing a device |
Modify information of a created device, except the product name and device ID. |
More > Force Offline |
Forcibly bring online devices offline.
NOTE:
This function is applicable only to the online devices that use the MQTT protocol. |
More > Deliver Command
NOTE:
Commands can be delivered only when the protocol type of the product to which the device belongs is MQTT. |
LINK can effectively manage devices. The product thing model of a device defines the commands that can be delivered to the device. An application can deliver commands to a single device through LINK to remotely control the device. The command delivery configuration is as follows:
NOTE:
An application can also call open northbound APIs of LINK to deliver commands to a single device or a batch of devices. |
More > Reset Password |
To change a password, click Reset Password in the Operation column of a device. |
More > Delete |
Delete a device. |
The content on the device details page varies depending on the product protocol type selected during device creation. For details, see Table 2.
Protocol Type |
Tab Page |
Description |
---|---|---|
MQTT |
Basic Information |
You can view basic information, including the device ID, online status, and connection address. |
Topics |
The system automatically generates default topics, that is, basic topics, by product ID and device ID. Custom topics are also supported. For details, see (Optional) Adding a Custom Topic for a Device. |
|
Device Shadows |
A device shadow is used to store the reported device status and values, which can be viewed in lists or JSON. |
|
Modbus |
Basic Information |
View the basic device information, including the device ID, online status, connection address, edge connection configuration, and downloaded EdgeShell. |
Topics |
The system automatically generates default topics, that is, basic topics, by product ID and device ID. You can also customize topics as required. The procedure is the same as that when MQTT is used. |
|
Edge Details |
View the resource status of the host where the device is located and the online and plug-in status. |
|
Modbus Configuration |
Create a Modbus connection point and policy as follows:
After the policy is created, connect to a device, enable the plug-in, and click Deliver Policy to deliver the policy to the device. |
|
Plug-in Deployment |
Before using this function, you need to install the EdgeShell client and connect it to LINK. |
|
OPC UA |
Basic Information |
View the basic device information, including the device ID, online status, connection address, and downloaded EdgeShell. |
Topics |
The system automatically generates default topics, that is, basic topics, by product ID and device ID. You can also customize topics as required. The procedure is the same as that when MQTT is used. |
|
Edge Details |
You can view the resource status of the host where the device is located, whether the device is online, and the plug-in status. |
|
OPC UA Configuration |
Create an OPC UA connection point and node.
After the node is created, connect to a device, enable the plug-in, and click Deliver Policy to deliver the policy. |
|
Plug-in Deployment |
Before using this function, you need to install the EdgeShell client and connect it to LINK. |
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