| 摘要 |
PROBLEM TO BE SOLVED: To provide a control system capable of changing linked data in a computing area of a PLC side without troubling a vendor of a device PLC, or without having the vendor of a network conflict with a responsibility range of a counterpart even if a vendor responsible for the device PLC and a vendor responsible for the network are different. SOLUTION: Each device NC, and one or more device PLCs under its control are connected via a first network used for data link communication. A plurality of the device NCs are connected to one another by a second network used for data link communication. Mapping defining a relationship between a first data link area and a second data link area in each device network controller can be changed. COPYRIGHT: (C)2007,JPO&INPIT
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