The physical combination and yet logical separation of safety-related and standard control functions, together with the flexible design, help to make applications economical to implement.
Pilz says the PSSuniversal will support a wide range of analogue interfaces in future, enabling analogue process signals from temperature sensors and level indicators, for example, to be read into the control process. These include standard inputs and outputs for analogue current and voltage signals, as well as incremental rotary encoders and synchronous serial interface (SSI) formats.
The control platform's mixed design means that clear savings can be demonstrated for user projects, even in the planning phase because all forms of cross-wiring are eliminated and fewer components are required. Installation, programming and servicing work can also be drastically reduced, while simpler interfaces make the overall architecture less complex. Despite the mixed design of the standard and safety functions, Pilz has maintained their operational separation to eliminate interference.
By granting concept approval, the engineering trade association BG FA MHHW has confirmed that the PSSuniversal system meets international safety requirements. The tests were carried out on the basis of EN 954-1 (Category 4), IEC 61508 (SIL 3) and prEN ISO 13849-1 (Performance Level e).