SignalR Hub Monitoring
SCS has a set of SignalR Hubs it uses to transmit signals and data back and forth among the various applications. Two important ones are the Configuration hub and the Data hub. The Configuration hub is used to announce changes to the sensor configuration inside SCS alerting templates and remote applications of changes made inside CFE. The Data hub is used to send sensor data to all the remote client websites & widgets directly from ACQ.
If you suspect an issue has arisen in either hub there are two pages located under the System menu item which allow you to passively monitor the hubs for traffic.
Monitor Data
The Monitor Data link will connect you to the Data hub allowing you to see the various messages being transmitted to all the clients. Data is sent in the JSON format, every second or so you should see new data items appearing here.
Monitor Configuration
The Monitor Configuration link will connect you to the Configuration hub allowing you to see publishes made via CFE. There are a lot of changes that can be made inside CFE and they have varying effects on the system overall. For instance, changing the comment on a physical device really doesn't make any different elsewhere in the system while changing the baud rate on a COM port most definitely would. The config hub breaks the changes up into categories and levels of impact. When you have the Monitor Configuration page open any publishes made by CFE should show up on the screen with the details.
