DuplineSafe is based on the Dupline® fieldbus, a system that has been used in more than 120.000 installations worldwide in the harshest industrial environments. Dupline® is particularly known for its reliability, simplicity and ability to transmit signals over long distances – all of which are features required in safety related systems. The trend is clear – big advantages can be achieved using bus communication in safety related systems. 

Compared to the traditional serial wiring of NC safety switches, the diagnostics is vastly improved. The immediate indication of causes for production stops makes it possible to reduce downtime significantly, especially on large machines and plants. Furthermore, a bus solution is safer, because the risk of undetected bridges over NC safety contacts is significantly reduced.

Immediate and precise diagnostics        

The status of the safety switches can e.g. be monitored from a HMI or LED mimic panel, providing fast and precise diagnostics. The signals can also be monitored from a PLC or PC, for example by using the DuplineSafe Profibus-DP gateway or the Modbus interface. Machine stops can be fixed faster leading to increased production efficiency. 

Up to 5 km transmission distance without repeater

No need for special network modules or special handling when long distances are involved. This is one of the main reasons for DuplineSafe being the leading Safety Bus system worldwide for long conveyors in mines, tunnels, cement factories, power plants, harbours, stone mills etc.

Bus-powered input modules        

The DuplineSafe input modules are bus-powered - hence no power supply is required at the E-stops. 

Easy to design, install and expand

The DuplineSafe system is easy to design, install and commission. The wiring of the twisted pair cable is uncomplicated and flexible with the possibility to use existing cables. If a conveyor belt needs to be extended, it is easy to install additional input modules.

Multiple safety relays can read the same inputs        

Easy to interlink safety switches from different machines so that any E-stop will activate multiple safety relays. 

TÜV-approved

DuplineSafe is approved by TUV Rheinland Group according to the latest safety standards IEC/EN61508-SIL3, IEC/ EN62061-SIL3 and ISO/EN 13849-1 PL e.