| 摘要 |
<p>PURPOSE:To realize a plant monitor controller having high reliability and high system performance at a power plant, by increaseing the number of controllable I/O control parts and improving the real transmission time. CONSTITUTION:A sequence operation part 1 of a master station 8 carries out the start and execution of the sequence operation, the process of the arithmetic result, the transfer of data to an upper computer 11, the self-diagnosis, etc. A transmission control part 2 includes a microprocessor, a series transmission circuit, a circuit of a digital PLL, etc. AN I/O control part 3 comprises a microprocessor, an I/O interface, etc. On the other hand, a slave station 9 consists of the transmission control part 2 and the control part 3. Then a control part having a microprocessor is provided for each function of both the stations 8 and 9 respectively, and these control parts are connected by a bus.</p> |
