| 摘要 |
PURPOSE:To support plural programmable controllers and DDCs (direct digital control) by using one set of loader via a serial bus. CONSTITUTION:The operator designates a PC among PCs (programmable controllers) 2a-2n, 5a, 5b and a loader 11 transmits a request data corresponding to a function of the loader based on a station number. The request data is received by the PC having a coincident station number, the PC returns the response data to the request data to the loader 11, where down/up load of the program of all the PCs and operation display are executed. |
