SIMATIC PN/PN coupler for deterministic data exchange between max. 4 PN controllers per side, also across network boundaries, transmission of PROFIsafe, I/O, MSI, MSO and data set communication, redundant power supply PN connection via SIMATIC BusAdapter (BA), delivery without BusAdapter The SIMATIC PN/PN coupler offers a simple and efficient way of connecting machines and communication between controllers via PROFINET. Maximum productivity, performance and availability are guaranteed by supporting the latest specifications. Efficient engineering and flexible use regardless of the connection technology used reduce the costs of engineering and commissioning. Simple fault localization and device replacement without additional hardware (PC or memory card) also simplify handling in the event of a fault. All SIMATIC ET 200SP BusAdapters are supported and offer a universal PROFINET interface.