Communication with the ICs is implemented via I²C in master mode and is managed by the STM32F205RB MCU; each L6360 has its own address and shares the bus with the other devices.
The STEVAL-IDP004V2 is developed to create a multi-port master based on serial asynchronous communication to support the IO-Link protocol.
Each node is equipped with an industrial M12 connector (as recommended by the standard) for connection with a single slave node using a cable (max. length 20 meters). The wire is a normal three-pole: one for the IO-Link bus, one for the L+ line (positive supply voltage pole) and one for the L- line (negative supply voltage pole).
The STEVAL-IDP004V2 board also includes RS-485 bus, CAN bus and USB hardware interfaces.
The layout is designed to meet the requirements for IEC61000-4-2/4/5 for industrial segment.