bluelog Neo
bluelog Neo
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Telecontrol

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About the telecontrol license

The Telecontrol license enables you to directly communicate with grid operators through the bluelog Neo telecontrol interface. This eliminates the need for a PLC, reducing hardware costs and engineering and commissioning time. The following protocols are available for bluelog Neo via separate licences:

  • IEC 60870-5 101 (RS485)

  • IEC 60870-5 104 (Ethernet)

telecontrol_functional principle
Telecontrol: functional principle

Prerequisites

How IEC communication works

The bluelog connects and maps the monitored data of the system to the list of agreed data points with the grid operator.

Concepts

The following definitions are used in the telecontrol feature:

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 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

Type ID (TI): The Type ID (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

Basic steps

  1. Configure the IEC server.

  2. Configure the data points.

  3. Optional: Configure Default values for data points.

  4. Configure data point settings (e.g. IOA address).

  5. Define Input value point definitions.

  6. Optional: Define Output value point definitions.

  7. Define the formula to calculate values for the data point (Input values and Output values). Use mathematical operators to define the formula for the result.

  8. Select Start simulation to test the formula.

  9. Confirm the formula with Ok.

  10. Confirm the data point setup with Ok.

  11. Select Save to save the IEC configuration. If the Server active toggle is activated, communication with the grid operator is established.

  12. Go to Overview of data points and check that the value points and IEC data points are correct.