we are a technical institute and have one process control training system with SD plus controller.We started system after couple of years and found some problems listed below
1:Controller does not have power indication light

2:Controller have red light flashing and also on all I/O cards
3:controller is not communicating
4:we are not able to open deltav explorer because it gives error that cannot open database.

Please help us to find solution for our problem
regard
Muhammad Tariq +966590987603