The invention discloses a slave
station address self-
identification system and a slave
station address self-identification method. The
system is composed of a
master station and a plurality of slave stations, besides a basic communication
bus between the
master station and the slave stations, the
master station outputs power signals, addresses of the slave stations can be automatically allocated through
voltage dividing networks and analog quantity acquisition units on the slave stations, and the number of the slave stations and access positions of the slave stations in the whole
system can be identified. According to the invention, in a short-distance communication state of the master-slave device in a
serial line mode, a device for address setting on the slave
station device can be omitted, and at the same time, a slave station address does not need to be specially set on the
application site of the master-slave device, so that the risk that the master-slave
system cannot work normally due to address setting conflicts can be reduced, and plug-and-play is realized. The method can be widely applied to various systems which are in close-range master-slave communication and in which the slave station needs external address setting, and the hardware design cost of slave station equipment in master-slave
network communication is greatly reduced.