Siemens SICAM Q100 7KG95 Series Manual page 222

9 Operation at Use of a PC
9.3 Configuration of the Device
9.3.7.3 OPC UA PubSub (MQTT)
NOTE
The protocol OPC UA PubSub (MQTT) is available in the firmware of SICAM Q100 V2.10 or higher and can
only run on the SICAM Q100 devices with expanded memory.
Function Description
The OPC UA PubSub (MQTT) protocol is used to:
• Provide users a flexible and mobile access to the data of protection, power quality, and control devices
• Evaluate the data of protection, power quality, and control devices
The protocol is resolved in the following ways:
• Devices send data from different locations where data is built and stored to cloud services via an Internet
connection.
• You retrieve the grid diagnostic data via Internet in local control centers.
• You use mobile applications for energy management, supervision, alert detection, and maintenance
tasks.
This entire data flow of device interconnectivity (using standardized communication protocols), data access,
and data evaluation via Internet is also called IoT (Internet of Things). The basic cloud services are supplied
by a cloud-service provider, for example, Siemens MindSphere.
Configuration via User Interface
To change the settings of the protocol in the Configure tab, proceed as follows:
✧
Activate the Protocol OPC UA PubSub (MQTT) protocol by selecting yes in Configure ->
Administrative -> Communication -> Protocol OPC UA PubSub (MQTT).
222 SICAM Q100, 7KG95xx, Device Manual
E50417-H1040-C522-A6, Edition 06.2019