IEC 60870-5-101

IEC 60870-5-101 (IEC101) is an international standard prepared by TC57 for power system monitoring, control & associated communications. 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.

Features

* Supports unbalanced (master initiated message) & balanced (master/slave initiated message) modes of data transfer.

* Link address and ASDU addresses are provided for classifying the end station and different sectors under the same.

* Data is classified into different information objects and each information object is provided with a specific address.

* Facility to classify the data into high priority (class-1) and low priority (class-2) and transfer the same using separate mechanisms.

* Possibility of classifying the data into different groups (1-16) to get the data according to the group by issuing specific group interrogation commands from the master & obtaining data under all the groups by issuing a general interrogation.

* Cyclic & Spontaneous data updating schemes are provided.

* Facility for time synchronization

* Schemes for transfer of files

Types Supported

* Single indication without / with 24 / with 56 bit timestamps.
* Double indication without / with 24 / with 56 bit timestamps.
* Step position information without / with 24 / with 56 bit timestamps.
* Measured value – normalized, scaled, short floating point without / with timestamps.
* Bitstring of 32 bit without / with timestamps.
* Integrated totals (counters) without / with timestamps.
* Packed events (start & tripping ) of protection equipments
* Single commands
* Double commands
* Regulating step command
* Set point commands of various data formats
* Bitstring commands
* Interrogation commands
* Clock synchronization & delay acquisition commands
* Test & reset commands

ee also

* IEC 60870-5
* IEC 60870-5-104
* IEC 60870-5-103
* IEC 61850
* DNP3

External links

* [http://www.trianglemicroworks.com/iec60870-5/index.htm IEC 60870-5 User Group Mail list]

* [http://www.trianglemicroworks.com/documents/DNPvs870.pdf Comparison of DNP and IEC 60870-5]

* [http://www.kalkitech.com/defaultpsoln.htm?gclid=CN2W4ImSi4wCFQK0TAodLT4k8w Communication Protocols for Energy Automation]

* [http://www.trianglemicroworks.com/ProductPage.htm Commercially available IEC 60870-5-101 Source Code, OPC Client/Server, Protocol Gateway, and Test Tools]

* [http://www.kalkitech.com/iec.htm IEC 60870-5-101 Solutions]

* [http://www.kalkitech.com/protocolgateways.htm IEC 60870-5-101 Protocol Converter & Gateway]

* [http://www.proscada.com/IEC_870.htm IEC 60870-5-101 OPC Server & middle ware]