PURPOSE: To accelerate transmission speed, by supplying the same address to a corresponding slave station between slave station group, and transmitting a supervisory and controlling data by sending polling and selecting from a master station to each of the slave station group simultaneously.
CONSTITUTION: The slave station groups 1∼3 having terminal equipments with different functions, are connected to the master station 40 with transmission lines 10, 20, and 30 provided independently by every slave station group, and the slave stations(1-1∼3-1) in the slave station groups 1∼3 are constituted in such way that they are corresponded to each other with the same addresses. Figure (a) shows thc polling from the master station which requests the transmission of the data of the slave station to collect them, and first of all, a (transmission request signal + data) is sent from the master station to the slave station as a polling signal. Responding to the above, the slave station returns a (transmission completion signal + data). Figure (b) shows the selecting from the master station which requests the reception of the data to the slave station, and the master station transmits a (reception request signal + data) to the slave station as a selecting signal. Responding to the above, the slave station returns a (transmission confirmation signal + data).
| JP2023156824 | WATER HEATER SYSTEM |
| JP2002044766 | REMOTE CONTROLLER CAP FOR HOME ELECTRIC APPLIANCES |
TAKEUCHI MASAKI
KOBA NAOYUKI
