METHOD OF TRANSMITTING DATA FROM TERMINAL-SLAVES TO A MASTER TERMINAL ALONG A COMMUNICATION BUS

摘要

A method of transmitting data from a plurality of slave terminals (TE1, TE2, TE3, TE4) to a master terminal (TM) along a communication bus (10). According to the invention, said method comprises the steps of: a) transmitting by the master-terminal (TM) a control sequence (SCi) comprising a response sequence (SRi) for receiving slave-terminals (TE1, TE2, TE3, TE4) an indicator of presence of data to be transmitted, b) providing by the slave-terminals said presence indicator in said response sequence (SRi), c) providing by the master-terminal (TM) an authorization (SA) to transmit data to a terminal -clave whose presence indicator of data to be transmitted is positive, d) transmit by said slave-terminal said data after the authorization received from the master-terminal, e) repeat steps c) and d) for any slave-terminal whose presence indicator of data to be transmitted is in sitif.Application to air conditioning systems of motor vehicles.