Adopted the multicast/broadcast in the communication of the digital output for electronic instrument transducer based on Ethernet

there are some disadvantages

like carrier collision

network overload

broadcast storm and so on. From the analysis of the communication of electronic instrument transducer and the VLAN technology

this paper improves on the network building of substations and the communication frame of electronic instrument transducers by applying VLAN technology into communication. The real-time feature and reliability of communication between electronic instrument transducers and the secondary devices is ameliorated.