| 摘要 |
PURPOSE:To execute a centralized monitor of data for showing an operating state of an engine by a master station, by installing plural slave stations provided with a control device of the engine, in a prescribed area, and executing polling between said slave station and the master station installed in this area. CONSTITUTION:Plural slave station 13 provided with an engine which is used as a power source of an oil well pump jack, and a control device of this engine are installed in a prescribed area 15. Also, a master station 14 which can execute a centralized monitor and remote control of plural slave stations 13 is installed in the prescribed area 15. Moreover, the master station 14 can be brought to centralized control by a control station 20. In this state. the master station 14 executes polling to each slave station 13 by one station each, data for showing an operating state of the engine is received by each slave station, and by an operator's operation, an engine control instruction is transmitted to the slave station 13. In this way, the engine of the slave station 13 can be managed concentrically by the master station 14, and labor saving can be realized. |
