Design
The different BaseUnits (BU) facilitate the exact adaptation to the required type of wiring. This enables users to select economical connection systems for the I/O modules used for their task. The TIA Selection Tool assists in the selection of the BaseUnits most suitable for the application.
BaseUnits with the following functions are available:
Single-conductor connection, with direct connection of the shared return conductor
Direct multi-conductor connection (2, 3 or 4-wire connection)
Recording of the terminal temperature for the internal temperature compensation for thermocouple measurements
AUX or additional terminals for individual use as voltage distribution terminal
The BaseUnits (BU) can be plugged onto DIN rails compliant with EN 60715 (35 x 7.5 mm or 35 mm x 15 mm). The BUs are arranged next to one another beside the interface module, thereby safeguarding the electromechanical link between the individual system components. An I/O module is plugged onto the BUs, which ultimately determines the function of the respective slot and the potentials of the terminals.