| 摘要 |
A distributed control system having a plurality of network-connected control units is realized in which a task having characteristics specific to a controller, such as input/output processing being necessary, or data stored in a dedicated controller having to be used, can be transferred to another controller for execution. In order to transfer a task specific to a controller to another controller for execution, a transfer source controller is provided with, in addition to an original function, a function of collecting input data of a storage area and context information and transferring them to a transfer destination controller. The destination controller has a function of storing the data transferred from the source controller in a storage area, making arithmetic operations, and sending the arithmetic result to the source controller. An arithmetic operation program is provided for both the source and destination controllers. The destination controller determines a reference address by a method appropriate for task processing.
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