| 摘要 |
PROBLEM TO BE SOLVED: To provide a programmable controller which facilitates debugging operation and secure the execution time of a sequence program in the actual operation. SOLUTION: A CPU 3 is equipped with a debugging operation execution part 31 which executes the sequence program while making an error check and a normal operation execution part 32 which executes the sequence program fast without any error check. In debugging execution, the debugging operation execution part 31 executes the sequence program to present detailed error information including errors regarding the sequence program and errors accompanying input data, so the debugging man-hour is reducible, so that the debugging operation can easily be performed. In the actual operation after the debugging, the normal arithmetic execution 32 is selected and executes the sequence program to secure the execution time of the sequence program since the adequacy of input data is already obtained and the program is executed fast without any error check.
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