PLC SYSTEM, STATE DISPLAY METHOD, PLC, AND PROGRAMMABLE DISPLAY

摘要

PROBLEM TO BE SOLVED: To provide a PLC system with improved operability.;SOLUTION: A PLC system 10 includes: a PLC 12 for controlling the operation of a device; and a programmable display 13 connected to the PLC 12 via a communication line. The PLC 12 has: information storage means for storing information indicating the operation state of a device 11, the information (e.g., character information), as is, recognizable for a user; and applicable-information storage means for storing, in an occurrence abnormality information storage zone 18a being a predetermined storage part, applicable-state character information applicable to a predetermined operation state of the device 11 from among character information stored in the information storage means, when detecting the predetermined operation state. The programmable display 13 includes: applicable-information acquisition means for acquiring applicable-state character information stored by the applicable-information storage means; and applicable-information display means for displaying the applicable-state character information obtained from the applicable-information acquisition means.;COPYRIGHT: (C)2013,JPO&INPIT