Open OPC linking of telecontrol technology

connectIT acts as a communication server between a telecontrol network and an OPC client. OPC is a communication platform which makes it possible to link a wide variety of systems thanks to its global standardisation.

An OPC server can link virtually any control systems, visualisation systems and special solutions with telecontrol systems and fieldbuses. Thanks to a wide range of providers, particularly economical solutions can be realised for this.

How it works

The OPC server converts telecontrol data and blocks of information from the protocols into OPC’s own data structures, what are known as items or tags. These are made available to the connected OPC client and processed there.

A visualisation system accesses the items stored on the OPC server as an OPC client and requests them as required. The OPC server automatically updates the data of the client according to cyclic or spontaneous criteria.

Advantages by dint of seamless integration

The OPC server is already fully configured by the setIT tool. There is no need to enter the data points a second time. At the same time, the archives logged in the substation are automatically saved as csv files and can be incorporated by intelligent control and visualisation systems such as FlowChief® and Acron in their trend logs.

connectIT is available as an attractively priced product variant for the FlowChief® linking.

Technical Data

HMI/SCADA coupling options

All visualisation systems with OPC-DA can be deployed.

  • Flowchief®
  • Acron®
  • InTouch®
  • iFIX
  • WinCC®


The communication server connectIT is installed to a Windows PC and, as OPC-Server, directly provides the following protocols:

  • IEC 60870-5-101
  • IEC 60870-5-104
  • UNIP

For the decoupling of different network segments and for protocol conversion from fieldbusses or protective equipment couplings to OPC, we recommend the deployment of an intermediary telecontrol master station. The gateway functions of the telecontrol devices net-line FW-50 and net-line FW-5000 are specialised for that purpose and allow the integration of:

  • IEC 60870-5-103
  • IEC 61850
  • Modbus RTU/TCP
  • Profibus-DP
  • 3964R/RK512