| 摘要 |
PURPOSE:To shorten the debug time of a user program by delivering outside a group of instructions related to the success/failure of interlock conditions, the interlock instructions and a specific one of user instructions of a group set between the interlock instructions. CONSTITUTION:The routine between steps 400 and 403 is executed repetitively for retrieval of an IL instruction out of a user program memory. If the IL instruction is retrieved at a step 402, the procedure proceeds to a step 404. Then a group of user instructions related to the success of conditions of the IL instruction. The instructions LD, OR, AND and IL are read out successively and stored to a RAM. The instructions are read out of the user program memory until an ILC instruction is detected at a step 408. Then an OUT instruction or an instruction equivalent to an output are detected and stored to the RAM. When the ILC instruction is detected at the step 408, the procedure proceeds to a step 412. Then the display output to a CRT and the print output to a printer are processed.
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