OPC (Openness, Productivity & Collaboration) is a standardized, open, and vendor-independent interface that is widely used in automation. OPC UA (Unified Architecture) is the result of consistent further development of this standard, offering additional functions such as security or redundancy.

S7 OPC Redundancy is a software product compliant with the OPC UA standard that enables redundant configuration of OPC UA servers for SIMATIC S7. The availability of automation data to operator control and monitoring systems is ensured thanks to the redundant use of OPC UA servers. This requires neither additional cabling for synchronizing the redundant OPC UA servers, nor additional programming effort on the PC. The OPC UA servers are synchronized via high-performance Industrial Ethernet network accesses at 10/100 and 1000 Mbps. S7 OPC Redundancy represents an integrated customer solution for all SIMATIC NET S7 SOFTNET and HARDNET software products in the automation world.