| Presentation | 2002/4/12 A Study on Link Redundancy Control in Standard Communication Protocols for Remote Monitoring and Control Systems Ichiro MIZUNUMA, Kanehide ARAI, Hajime SASAKI, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose methods of standby redundancy control of communication linen in ISO/IEC 60870-5-101, which is a standard communication protocol for remote monitoring and control (telecontrol) and has come into wide use in applications of electric power distribution and generation, water treatment, and so on. The protocol doesn't have consideration about such redundancy control, and it is difficult to introduce additional communication sequences into the protocol to detect communication faults. In this paper, we propose an algorithm to detect communication faults and find out the points of the faults from erroneous behavior of message sequences for monitoring and control without altering data formats and message sequences of the protocol. Furthermore, it is strongly required that the standby redundancy control will be realized with modifying existing implementations of the protocol as little as possible. For this, we propose a concept of "a redundant communication line" and its implementation, which makes most improvement in the protocol for redundancy implemented in its physical layer, minimizes alteration in its link layer and upper layers, and makes the protocol stack easy to be implemented and portable onto various platforms. Finally, we show how an actual communication system detects faults and recovers from them with the proposed algorithm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Remote monitoring and control / telecontrol / standby-redundancy / ISO/IEC 60870-5-101 |
| Paper # | DC2002-3 |
| Date of Issue |
| Conference Information | |
| Committee | DC |
|---|---|
| Conference Date | 2002/4/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Dependable Computing (DC) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Link Redundancy Control in Standard Communication Protocols for Remote Monitoring and Control Systems |
| Sub Title (in English) | |
| Keyword(1) | Remote monitoring and control |
| Keyword(2) | telecontrol |
| Keyword(3) | standby-redundancy |
| Keyword(4) | ISO/IEC 60870-5-101 |
| 1st Author's Name | Ichiro MIZUNUMA |
| 1st Author's Affiliation | Industrial Electronics and Systems Lab., Mitsubishi Electric Corp.() |
| 2nd Author's Name | Kanehide ARAI |
| 2nd Author's Affiliation | Industrial Electronics and Systems Lab., Mitsubishi Electric Corp. |
| 3rd Author's Name | Hajime SASAKI |
| 3rd Author's Affiliation | Energy and Industrial Systems Center, Mitsubishi-Electric Corp. |
| Date | 2002/4/12 |
| Paper # | DC2002-3 |
| Volume (vol) | vol.102 |
| Number (no) | 28 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |