SEQUENCE CONTROLLER

PURPOSE:To improve the versatility by providing sequence table means, sequence unit means which substitute the stub descriptions of temporary arguments used by the sequence table means, a scheduler means for them, a working area means, etc. CONSTITUTION:The sequence controller consists of sequence table means 11 and 12, sequence unit means 21 and 22, scheduler working area means 41 and 42, a composing means 6, an output means 7 with a man-machine interface function, etc. Then the sequence table means 11 and 12 use temporary arguments by pure logic containing no address to describe their stubs. Further, the sequence unit means 21 and 22 substitute the stubs described with the temporary arguments with stubs based upon effective elements defined in a main unit and are driven by the scheduler means 3. Further, the composing means 6 puts the respective means together to generate a sequence table 8, which is displayed by the output means 7.