The BIS-V RFID controller enables the simultaneous connection of up to four read/write heads. Both HF (13.56 MHz) in accord-ance with ISO 15693 and ISO 14443 and LF (125 kHz) read heads can be connected on the front with plug connectors and are automatically detected. The RFID controller allows IO-Link capable sensors or actuators to be directly connected, and is equipped with Profibus interface and with USB as the service interface to the PC.