As a result of using a binary information exchange system, it was possible to connect EMCO lathe control system and input and output warehouses with one of the FANUC manipulator control system. Fig. 4. shows mutual signal connections in that part of the flexible work center.
Fig. 3. Digital input and output module added to RJ3iB driver of FANUC robot
Fig. 4. Computer structure of binary information flow
Because of the need to feed all the signals of the binary information exchange channel to the control system of one of the FANUC manipulators, it was decided to make the RJ3iB controller of that robot superior with respect to the remaining components of the lathe work center.
Setting one of the FANUC controllers as a superior with respect to remaining components of flexible manufacturing system requires the creation of a robot program, which must link subprograms connected with
information exchange, and also with the realization of the proper manipulation goals.
Because the plate conveyor with a SEW controller steered by MOVIDRIVE INVERTER MDX61B0005-5A3-4-00 inverter is one of the robot center components, it was necessary to run a transfer protocol between the superior system unit (the RJ3iB river of the FANUC robot) and the interface of SEW inverter.
An analysis was made of any possibilities connected with using the inverter transport with other center components, e.g. industrial nets: DeviceNet (CAN) and PROFIBUS DP, RS-485 serial protocol and the transmission by using digital inputs and outputs.