The new Safety Command Devices from Leuze electronic are available with housing for mounting on machines and in systems. They are operated, as is common with this type of buttons, by pressing of the red E-Stop button. An E-Stop signal is then output immediately to the PLC, for example. Depending on requirements, the button can be enabled (i.e. cancelling the stop signal) by turning the red button or, depending on the variant, by turning a key. New types are also available in the ERS200 Rope Switch product range, for example with additional contact blocks and extremely compact housing, and with M12 plug if desired. All variants enable integration in control circuits up to category 4 in accordance with EN ISO 13849.