Telecontrol

Data point

Variable that represents a value exchanged with the grid operator via the IEC protocol. You can configure an initial default value. The system then updates the value of the data point according to the formula you define.

Value point

Definition of a value used by a data point. It can contain the actual measurement or calculated value used as input to a formula or as the formula's output. Value points can come from sensors, device readings, constants, or calculated results.

Context variable

Freely defined variable/default value which can be used in value points. Example: initialization values for properties, such as emergency stop.

Information object address (IOA)

Unique numerical address of a data point in the IEC‑101/104 protocol. It tells the grid operator which measurement or control signal is being transmitted. See the respective network policies (grid code) for the required information.

Cause-of-transmission (COT)

Indicates why a data point is sent in an IEC 60870 telegram. It provides context such as:

• Spontaneous update (e.g. cyclic)

• Response to interrogation

• Command execution

Data point type (TI)

German: Typkennung (TK)

Defines the structure and meaning of a data point in an IEC 60870 telegram. It specifies:

• Whether it is an information or command type

• Data format (e.g. single point, measured value)

• Whether additional information (e.g. timestamp) is included

Counter

A cumulative value that continuously accumulates a quantity over time, such as energy, runtime, or event counts.