| 摘要 |
<p>A device and method allowing input/output processing of a plurality of data to be processed in parallel at each I/O device of a PLC. An operation data extraction unit of each I/O device inputs a received different station's input of one of the other I/O devices and a received different station's output of one of the other I/O devices, and also inputs an own station's input and an own station's output. The operation data extraction unit extracts operation data from each of the own station's input and output, and the different station's input and output, according to parameters (which specify a selected type, a data position, a selected station number, and an own station number) stored in a parameter unit. An operation unit executes a plurality of operation processing in parallel by using the operation data extracted by the operation data extraction unit and according to operation processing.</p> |
