Distributed robot control system based on field buses

The invention discloses a distributed robot control system based on field buses. The distributed robot control system comprises a main controller, a servo drive controller, an input and output module, a safety module and a demonstrator, the main controller is connected with the servo driving controller through the field bus 1, the servo drive controller is connected with the input and output module through the field bus 2, the input and output module is connected with the safety module through the field bus 3, and the demonstrator is connected with the main controller through the field bus 4. Based on an open field bus protocol and a distributed function module, the whole distributed robot control system has the advantages of being open, simple in structure and the like. Based on the structure, a user can select a servo driver, the input and output module and the safety module based on a CAN or an EtherCAT bus and other buses around the main controller according to the needs of the user, and therefore clipping cost and performance freedom are fully mastered.