| 摘要 |
PROBLEM TO BE SOLVED: To efficiently prepare a display contents program (e.g. a user screen) to be displayed on a programmable display device without generating malfunction on the basis of the information of a control procedure program (e.g. a ladder program) for driving a controller such as a PLC. SOLUTION: A ladder analysis means 32c previously allows a ladder instruction for constituting a ladder program to correspond to parts for constituting a user screen, collectively extracts parts corresponding to a ladder instruction included in a ladder program prepared by a ladder editor 32a and registers the extracted parts in a parts file 33c in each screen of the user screen to prepare a parts data base. In the case of preparing a user screen by a plotting editor 32b, the parts registered in the parts data base are used. Since the parts data base is collectively prepared, the efficiency of processing can be improved. In addition, all parts corresponding to ladder instructions are included in the parts data base.
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