| 摘要 |
<p>The programme controller performs a sequential control by using a software comprising basic instructions and functional instructions written in a ladder language. The functional instructions are registered as subroutines and called from a main program. The controller provides a unified form of such arbitrary functional instructions (FUNC), where the form of functional instruction is changed depending on the input conditions (A, B,C) which are registered in the parameter region (P), and the top address of a memory area for a particular functional instruction is accessed. This enables the user to register any functional instructions.</p> |
