We have an installation of Compact HMI V6 taking data via AC800PEC Controller. The Tags/Signals are linked to AC800PEC OPC values, The operation works normal in most of the times, but there is an observation that the workplace/ OPC values gets freeze or Hanging. The Problem gets resolved upon PC restart or System Restart in Config Wizard. We suspected there might be a load on network causing this effect, but network test says there is no issue and we tried with different switches and cables too. What could be the possible cause of this error?
Have you been able to identify if some particular operator actions are causing this behavior?
Can you keep any third party OPC client connected with some tags in the background; and when the tag values are frozen in the AfwWorkplace, check if these tag values are frozen in third party OPC client as well?
Can you also monitor the memory of AfwWorkplaceApplication process and check if there is a memory leak?