Thanks to optional interface modules, the Controllers can be expanded for all standard fieldbus systems. CAN-Open, USB and Ethernet interfaces are standard. EtherCAT and Profibus can be easily retrofitted as plug-in modules. The Safety Module STO (Safe Torque Off) makes the system even safer by putting the motor into a no-torque state when at rest. The module satisfies the safety standards in category 4 / PL to EN ISO 13849-1 and SIL CL3 to EN 62061.