1. A communication system on an IP network ( 50 ) between an automation equipment ( 10 ) comprising at least one processing unit capable of running a program ( 20 ) to provide automation functions and one or more remote devices ( 30 ) running a computer program or group of computer programs, characterised in that the communications system is based on the Simple Object Access Protocol (SOAP) for the purpose of providing the remote device ( 30 ) with supervision, display, control, configuration or programming functions of the automation equipment ( 10 ), and in that the communications system comprises, in the automation equipment ( 10 ), at least one WEB service ( 21 ) or one WEB client ( 22 ) which are capable of interacting with the program ( 20 ) of the automation equipment ( 10 ) of decoding messages received ( 51, 54 ) from the IP network ( 50 ) encoded according to the SOAP protocol and of encoding according to the SOAP protocol messages to be sent ( 52, 53 ) on the IP network ( 50 ).