PROGRAMMABLE CONTROLLER SYSTEM, DEBUT METHOD OF PROGRAMMABLE CONTROLLER, PROGRAMMING SUPPORTING PROGRAM, AND DEBUT CONTROL PROGRAM OF PROGRAMMABLE CONTROLLER

摘要

PROBLEM TO BE SOLVED: To perform debug of a programmable controller (PLC), according to a general-purpose method with less additional software and resources, such as hardware.;SOLUTION: In the PLC for executing a control function, by compiling a sequence command description program 310 in a machine language program 320 of a general-purpose microcomputer, an NOP command 322 is inserted into a gap of a machine language 321, corresponding to an individual sequence command 311 and a sequence command gap table 330, where a position of inserted individual NOP command 322 is recorded as an offset value 331 is created, when compiling. At executing of the machine language program 320 in the PLC, the NOP command 322 is replaced by JMP or a CALL command to a debug task, on the basis of the offset value 331, and debug is executed in the machine language program 320 by the command of the sequence command description program 310.;COPYRIGHT: (C)2007,JPO&INPIT