Why does my interface start and stop periodically?

Hi

 

I have the PI Interface for OPC DA installed on a server that runs Siemens WinCC. The ICU successfully connected to the WinCC OPC Server when I installed the interface. I have noticed that the interface periodically disconnects for several hours and then reconnects. I used Matrikon OPC explorer to check if the OPC server is the issue, but there were no error logs. What could be causing this?

 

Below is a graph of the device status tag for that interface:

 


image.png
 

Thanks in advance.