
Fieldbus standard for use in industrial control systems Part 2: Physical Layer specification and service definition
出版:International Electrotechnical Committee

专家解读视频
This part of IEC 61158 specifies the requirements for Fieldbus component parts. It also specifies the media and network configuration requirements necessary to ensure agreed levels of:a) data integrity before Data Link Layer error checking;b) interoperability between devices at the Physical Layer.The Fieldbus Physical Layer conforms to layer 1 of the OSI 7-layer model as defined by ISO 7498 with the exception that frame delimiters are in the Physical Layer.