主从系统包括具有用于提供信号的信号或串行信号序列的数字输出的主单元以及至少两个从单元。 每个从单元包括至少一个具有一位大小的数字串行存储器，并且每个从单元包括输入和输出。 从机通过信号线（5）通过输入和输出彼此串联连接。 第一从单元的输出经由信号线连接到主单元的数字输出。 主从系统被配置为使得在从单元的输入处检测由数字输出提供的信号，以便在每种情况下将对应的从单元的地址提高值“1”，以存储信号 在存储器的输出处改变存储器并输出与存储器的内容相对应的信号。

The present invention is a master-slave system (100) comprising a master unit (1) having a digital output (6) for providing a signal or a serial signal series of signals and at least two slave units (2), said slave units (2) each having a digital serial memory (3) having a size of one bit and each having an input (3a) and an output (3b), wherein the slave units (2) via the inputs (3a) and the outputs (3b) via a signal line (5) are connected in series and wherein the input (3a) of a first slave unit (2) via the signal line (5) with the digital output (6) of the master unit (1) is connected, wherein the master-slave system (100) is configured so that at the input (3a) of the slave unit (2) is one from the digital output (6) signal provided (signal change) is detected, the address (a) of the respective slave unit (2) by the value "1" to increase, to be paid to signal changes in the memory (3) and the contents of the memory (3) corresponding signal at the output (3b) of the memory (3) or greater.