DER communication over a WAN Using SEP 2.0 versus IEC 62541 OPC UA. Paper abstract bibtex This white paper compares the two communication technologies: Smart Energy Profile (SEP) 2.0 and IEC 62541 OPC Unified Architecture (UA) as well as provides an introduction to OPC UA. SEP 2.0, was developed for LAN communication and employs a REST protocol style. OPC UA was developed for LAN or WAN communication and employs a “Stateful Communication” protocol style. Stateless REST servers don’t store communication/protocol information for clients for the duration of a conversation 1 while stateful servers do. Both approaches can work and both have advantages and disadvantages. Whether stateless or stateful servers should be used depends on the use case.
@misc{ _communication_????,
title = {{DER} communication over a {WAN} {Using} {SEP} 2.0 versus {IEC} 62541 {OPC} {UA}},
url = {http://www.cpuc.ca.gov/NR/rdonlyres/7D299BB2-4828-452B-8836-11C55956E4AA/0/ProtocolComparison02.pdf},
abstract = {This white paper compares the two communication technologies: Smart Energy Profile (SEP) 2.0
and IEC 62541 OPC Unified Architecture (UA) as well as provides an introduction to OPC UA.
SEP 2.0, was developed for LAN communication and employs a REST protocol style. OPC UA
was developed for LAN or WAN communication and employs a “Stateful Communication”
protocol style. Stateless REST servers don’t store communication/protocol information for
clients for the duration of a conversation 1 while stateful servers do. Both approaches can work
and both have advantages and disadvantages. Whether stateless or stateful servers should be
used depends on the use case.}
}
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