| 摘要 |
The invention relates to a method for ensuring a regulated data transfer on a two-wire bus having any number of stations (St1, St2, St3) as sensors and/or actuators. A starting pulse (P1) is transmitted from a central bus supplying device (NG) to the bus (Bus). Following a defined time span (ta), all stations (St1, St2, St3) having a message to send transmit their address (SA1, SA2, SA3) by bits on the bus, short-circuiting the bus by a switch, according to the address (SA1, SA2, SA3). All stations (St1, St2, St3) connected to the bus receive the bus signal. The evaluation electronics of each station (St1, St2, St3) compares the signal received by the bus by bits with its own address (SA1, SA2, SA3) and stops the transmission of its own address (SA1) in the event of a difference. The remaining stations (St2, St3) continue said process until only one station (St3) remains and sends its data by means of the bus. |
