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IEC 60870 part 5 〔Gordon R. Clarke et al, ''Practical modern SCADA protocols: DNP3, 60870.5 and related systems'', Newnes, 2004 ISBN 0-7506-5799-5〕 is one of the IEC 60870 set of standards which define systems used for telecontrol (supervisory control and data acquisition) in electrical engineering and power system automation applications. Part 5 provides a communication profile for sending basic telecontrol messages between two systems, which uses permanent directly connected data circuits between the systems. The IEC Technical Committee 57 (Working Group 03) have developed a protocol standard for telecontrol, teleprotection, and associated telecommunications for electric power systems. The result of this work is IEC 60870-5. Five documents specify the base IEC 60870-5: * IEC 60870-5-1 Transmission Frame Formats * IEC 60870-5-2 Data Link Transmission Services * IEC 60870-5-3 General Structure of Application Data * IEC 60870-5-4 Definition and Coding of Information Elements * IEC 60870-5-5 Basic Application Functions * IEC 60870-5-6 Guidelines for conformance testing for the IEC 60870-5 companion standards The IEC Technical Committee 57 has also generated companion standards: * IEC 60870-5-101 Transmission Protocols, companion standards especially for basic telecontrol tasks * IEC 60870-5-102 Companion standard for the transmission of integrated totals in electric power systems (this standard is not widely used) * IEC 60870-5-103 Transmission Protocols, Companion standard for the informative interface of protection equipment * IEC 60870-5-104 Transmission Protocols, Network access for IEC 60870-5-101 using standard transport profiles IEC 60870-5-101/102/103/104 are companion standards generated for basic telecontrol tasks, transmission of integrated totals, data exchange from protection equipment & network access of IEC101 respectively. ==IEC 60870-5-101== IEC 60870-5-101 () is a standard for power system monitoring, control & associated communications for telecontrol, teleprotection, and associated telecommunications for electric power systems. This is completely compatible with IEC 60870-5-1 to IEC 60870-5-5 standards and uses standard asynchronous serial tele-control channel interface between DTE and DCE. The standard is suitable for multiple configurations like point-to-point, star, mutidropped etc. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「IEC 60870-5」の詳細全文を読む スポンサード リンク
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