Optimum protection for man and machine

In automation solutions with MVK Metal Safety, affected outputs are deactivated by targeted signals from the control unit. These kinds of applications require individual components to fulfill technical safety requirements to ensure that a safe control unit (F-PLC) can transmit safe signals, and also to assure the reliability of those transmissions.

The alternative to the F control unit

With the IP67 MVK Metal compact module, safe inputs / outputs can also be connected directly to the Siemens Sinumerik 840D SL Profinet CNC, used worldwide, provided that 'safety integrated' is enabled in the control unit. This enables safe data to be transmitted directly from sensors to control unit via the bus protocol. They no longer need to be wired passively in the control cabinet. This enables high safety standards (SIL3 and PLe) to be achieved.

Perfectly matched

The MVK Metal Safety fieldbus module from Murrelektronik ​​​​​​​can be equipped with only inputs, and also as a mixed module: with safe inputs as well as outputs. There are two inputs on each M12 input terminal. Depending on the application, these can be used for two single-channel or for one two-channel safety circuit. On two-channel applications, the channels can be configured to be equivalent or antivalent to one another. In addition, the discrepancy time is variable. This can be important factors if two sensors exhibit different response times and need to be set precisely to one another.

To enable data to be transmitted safety, MVK Metal Safety​​​​​​​ uses the PROFINET/PROFIsafe transmission protocol. Failsafe data are transmitted by PROFIsafe using the same bus line as non-safe signals. This enables the individual wires in a safe field bus solution to be integrated in standard modules without this imposing an unreasonable additional burden in terms of time and cost for engineering and installation specialists. This is the key to an enormous potential saving in terms of wiring. In addition, an existing field bus solution can be upgraded into a safe system without the need for major modifications.