Confirm that the MQTT JSON Schema A Server Component is Installed
The MQTT JSON Schema A extension driver provides the MQTT driver with extra functionality, enabling Geo SCADA Expert to retrieve data using either of two MQTT JSON Schema A message formats. In order to retrieve the data using such message formats, the JSON Schema A component has to be installed on each of the servers on your system (including any permanent standby servers), in addition to the MQTT component.
Use the Add/Remove Programs function in the Windows® Control Panel to check whether the required components are installed.
The JSON Schema A component is located in the Server group, in a branch off from its MQTT ‘parent’ driver component. To check that this component has been installed, ensure that the symbol to the left of the text JSON Schema A does not have an X on it.