BS EN 60870 is a series on telecontrol equipment and systems. Telecontrol equipment and systems are the connection of process stations spread out over a wide area to central control systems. BS EN 60870-6-802 specifies a method of exchanging time-critical control centre data through wide-area and local-area networks using a full ISO compliant protocol stack. BS EN 60870-6-802 contains provisions for supporting both centralized and distributed architectures. BS EN 60870-6-802 includes the exchange of real-time data indications, control operations, time-series data, scheduling and accounting information, remote program control and event notification.
BS EN 60870-6-802 on telecontrol equipment and systems is useful for:
The primary purpose of the Telecontrol Application Service Element (TASE.2) is to transfer data between control systems and to initiate control actions. Data is represented by object instances. BS EN 60870-6-802 proposes object models from which to define object instances. The object models represent objects for transfer. The local system may not maintain a copy of every attribute of an object instance. The object models presented herein are specific to "control centre" or "utility" operations and applications; objects required to implement the TASE.2 protocol and services are found in IEC 60870-6-503. Since needs will vary, the object models presented here provide only a base. BS EN 60870-6-802 describes the control centre-specific object models and their application. They are intended to provide information to explain the function of the data.
BS EN 60870-6-802 defines a set of MMS type descriptions for use in exchanging the values of instances of the defined object models. It is important to note that not all attributes of the object models are mapped to types. Some attributes are described simply to define the processing required by the owner of the data and are never exchanged between control centres. Other attributes are used to determine the specific types of MMS variables used for the mapping, and therefore do not appear as exchanged values themselves. A single object model may also be mapped onto several distinct MMS variables, based on the type of access and the TASE.2 services required. BS EN 60870-6-802 describes the mapping of instances of each object type MMS variables and named variable lists for implementing the exchange, device-specific codes, and semantics to be used with the general objects and some typical interchange scheduling scenarios, along with the use of TASE.2 objects to implement the scheduled exchange. Using BS EN 60870-6-802 you can specify a method of exchanging time-critical control centre data through wide-area and local-area networks using a full ISO compliant protocol stack.
EN 60870-6-802:2014
IEC 60870-6-802:2014