Gateway
ZB0929
19
•
[Notification]: Create and manage notifications (
subscribe
/
unsubscribe
)
•
[Elements]: View the data structure of the IoT core tree and copy URLs for query
•
[Parameter]: Read and write sensor parameters
•
[Processdata]: Read and write process data
•
[Update]: Update the device firmware and IoT core software
12.2.2 Updating the firmware
The [Update] menu page of the ifm IoT Core Visualizer provides information on the current firmware
version and the IoT Core version.
u
During the firmware update, ensure that the device is connected to the supply voltage.
u
Click on [Load software file] and select new firmware file (*.tar).
u
Click on [Update] to start the update process.
w
The firmware of the device is updated.
The firmware update may take several minutes.
w
If the update process has been successful, the device will restart automatically.
12.3 Accessing the ifm IoT Core using a REST API
Using a REST API, the user can access the ifm IoT Core via HTTP requests.
The following request methods are available.
12.3.1 GET request
Using the GET method the user has read access to a data point.
The syntax of the request to the ifm IoT Core is:
http://[ip address]:8001/datapoint/service
Parameter
Description
Ip address
IP address of the IoT interface with port 8001
datapoint
Data point which is to be accessed
service
Service
