User Documentation

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2. Overview of the FreeCon Active PROFINET-
IRT Repeater
The FreeCon Active PROFINET-IRT Repeater is used to provide additional cable lengths beyond the 100 m
limitation of Profinet copper cabling. The signal is not only amplified, it is also processed to ensure optimum
signal quality.
It fulfils important functions:
Provision of important PROFINET diagnostic functions.
• Extension of the permissible cable segment length by 100 m.
The device is connected via PushPull plug-in connectors in series with the power and Ethernet cables. The
figure below shows the integration of the FreeCon Active PROFINET-IRT Repeater in a typical robotics
application.
Fig. 1 The FreeCon Active PROFINET-IRT Repeater in a typical robotics application.
A - Example: Weidmüller FreeCon Active PROFINET-IRT Repeater mounted on the robot arm.
2.1 Electrical properties
The FreeCon Active PROFINET-IRT Repeater typically consumes 80 mA current at 24 V DC. It works on an
input voltage of between 18 and 30 V DC in a temperature range of -20 to 55°C. The maximum current on
US1 or US2 must not exceed 16 A (see also Chapter 3.2 Power connection).
2.2 Internal CPU
The FreeCon Active PROFINET-IRT Repeater is fitted with an NP40 processor and uses the HMS PROFINET
protocol stack.