PROFIBUS S7 OPC Redundancy V13 for CP 5612/CP 5622/CP 5711/CP CP5603/ CP 5623/CP 5624/ CP 5613A2/CP 5614A2 redundant OPC Server software pair for PB software S7 products single License for 2 installations Runtime software, Software and electr. manual on DVD; License key on USB stick; Class A; 2 languages (de, en); for Windows Server 2008 R2 SP1