To execute a control program without restricting by execution times of software.

For adding mutually input values stored into a variable A and a variable B and performing a computation for storing the result into a variable C, when each input value data is inputted, an input part 1302-A is initiated to transfer an input value data stored into the variable A and input into an ALU (Arithmetic Logic Unit) 1701 of a computing part 1303 via a connecting point D on a network circuit 1301, an input part 1302-B is initiated to transfer the input value data stored into the variable B and input into the ALU 1701 of the computing part 1303. After the completion of computing, output values are stored into a data buffer memory 1604 of an output part 1304 via an F point of the network circuit 1301 and output value data are written into a data memory 15.