IO-Hyperlink Distance Sensor Reference Design

The design integrates key elements for IO-Hyperlink functions, offering an answer for industrial automation with particular options and performance.

The reference design, developed in partnership with Technologie Administration Gruppe (TMG TE), incorporates Maxim’s MAXREFDES171#, an answer for IO-Hyperlink variations 1.1/1.0. The design integrates elements equivalent to a transceiver, a 16-bit microcontroller working the TMG TE IO-Hyperlink machine stack, and the space sensor, which gives an answer for distance and proximity sensing.

The MAX22513 transceiver is the center of the design, assembly the IO-Hyperlink bodily layer specs for variations 1.1/1.0. It consists of safety options like reverse-voltage, short-circuit safety on all IO pins, and surge safety. This eliminates the necessity for exterior elements like TVS diodes whereas lowering energy dissipation by on-resistance drivers. The transceiver operates from a 24V provide with assist for as much as 36V and may tolerate transients with a most score of 65V.

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For energy effectivity, the transceiver integrates a DC-DC buck regulator that decreases the 24V enter to decrease voltages. This regulator helps hundreds as much as 300mA, making it preferrred for sensors at decrease voltages the place linear regulators can be much less environment friendly. Moreover, two linear regulators generate 3.3V and 5V rails throughout the similar transceiver bundle, minimizing exterior elements and saving board house.

The transceiver presents flexibility with a dual-channel interface supporting both SPI or I2C. On this design, I2C reduces the variety of required microcontroller pins. The transceiver and the space sensor can share the identical I2C bus, enabling diagnostics and a 3-wire UART interface for IO-Hyperlink communication.

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The MAX32660 microcontroller options an Arm Cortex-M4 core with a floating-point unit (FPU), integrates an influence administration unit, and gives 256KB of flash reminiscence and 96KB of RAM, making it appropriate for working sensor and utility code. It helps communication protocols equivalent to SPI, UART, and I2C, making certain integration into industrial programs.

The VL53L1 Time-of-Flight (ToF) laser-ranging sensor, built-in into this reference design, presents a most measurement vary of 400cm and operates through I2C with a default preprogrammed handle of 0x52. This eliminates the necessity for exterior handle pins, simplifying the design.

Safety towards electrical transients is constructed into the design by MAX22513’s surge safety, making certain compliance with IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT) requirements. Surge safety capabilities embrace 2A at 1.2/50μs with a clamping voltage of lower than 70V.

For connectivity, the design employs an industry-standard M12 connector that helps both 4-wire or 3-wire cable configurations. The system’s present consumption—beneath 9mA—consists of visible indicators equivalent to a inexperienced LED to point out energy, a yellow LED to blink with every sensor studying, and a pink LED to point faults.

With this reference design, engineers can speed up the event of Trade 4.0-compliant automation programs, making certain reliability, cost-effectiveness, and ease of integration into industrial management functions.

Maxim Built-in has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) structure, and extra. The corporate’s web site has further information in regards to the reference design. To learn extra about this reference design, click on right here.