PROGRAMMIERBARE STEUEREINHEIT

摘要

A programmable controller incorporating a sequence control program and adapted to input and output information to a variety of local intelligent appliances at a high velocity and efficiency in the field of factory automation for efficiently controlling factory production lines or of process automation for controlling multiple industrial processes comprises an improved changeover system associated with a 1-bit processor (BPU2) for executing the sequence control program and an ordinary processor (CPU 1) directly connected thereto. The controller is arranged such that when the processor which is executing the program determines that the command is to be executed by the other processor, it informs the other processor of the address in program memory from which execution is to start using a dedicated control line (L). The other processor reads the command directly from the program memory and executes it. <IMAGE>