No specific info about version 4.0. Please visit the main page of DELTALOGIC S7/S5-OPC-Server on Software Informer.
It is designed for client apps that need real-time access to production data.
You can send/receive data between an OPC server and the program.
The OPC server can be connected to an unlimited number of devices simultaneously
It allows you to explorer OPC servers installed on your computer.
Network management integration with SCADA and HMI using OPC and Web Services.
Communicate with a wide range of HMI/SCADA software packages.