Robot control system comprising a portable operating device with safety equipment

A robot controllers comprising:

• a control unit for controlling at least one robot and a portable operating device, called hereafter a TPU, for teaching and manually operating the robot,
• which TPU comprises a safety equipment, a safety TPU-part having a first communication unit for transmitting communication data and a main TPU-part having a second communication unit for transmitting and receiving communication data,
• the control unit comprises a safety control part having a third communication unit for receiving communication data and a main control part having a forth communication unit for transmitting and receiving communication data,
• the first and third communication units are arranged such that they form a first communication channel for transferring communication data including information regarding the status of safety equipment from the TPU to the control unit,
• the second and fourth communication units are arranged such that they form a second communication channel for transferring general communication data between the TPU and the control unit,
• wherein each of the main TPU-part, the safety TPU-part, the main control part, and the safety control part comprises a central processing unit adapted to generate and/or handle said communication data, each of the communication units are connected to a network, and each of the communication units forms a node in the network.