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Industrial CAN Sensor Network

Overview

Description

In industrial applications, the Controller Area Network (CAN) is the most widely used device-level communication bus, known for its high reliability and cost-effectiveness. Sensors are also prevalent in these applications, measuring factors like air quality and humidity. This design illustrates a sensor data collection network utilizing CAN functionality in the Arm® Cortex®-M23 core-based MCU. CAN nodes are connected via an isolated RS-485 transceiver and an inverter.

System Benefits​:

  • 48MHz Arm Cortex-M23 core delivers outstanding performance for efficient computation and fast response times.
  • Integrated encryption library in the MCU ensures safe communication and data protection, maintaining data integrity in critical applications.
  • High-speed RS-485 transceiver provides a robust communication interface, ensuring reliable communication over long distances and in noisy environments.

Comparison

Applications

Block Diagram

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Template 2 TW007 TW007 TW007 Sheet.2 RS485 2 RS-485 RS-485 IAQ Sensor IAQ Sensor IAQ Sensor LDO 2 LDO LDO AC/DC AC/DC AC/DC Plug Sheet.11 Sheet.12 Sheet.13 Sheet.14 Sheet.15 Sheet.16 Sheet.17 Sheet.18 Sheet.19 Sheet.20 Sheet.21 Sheet.22 Sheet.23 Sheet.24 Board 2 Board 2 Board 2 110/220V AC 110/220V AC 110/220V AC Connector 1.78 3.3V 80mAmax 3.3V 80mAmax 3.3V 80mAmax VOUT = 5V IOUT, max =500mA VOUT = 5V IOUT, max =500mA VOUT = 5VIOUT, max =500mA VOUT = 3.3V IOUT, max =500mA VOUT = 3.3V IOUT, max =500mA VOUT = 3.3VIOUT, max =500mA CAN Bus CAN Bus CAN Bus Sheet.32 Sheet.33 RS485 1 RS-485 RS-485 Flow Sensor Flow Sensor Flow Sensor LDO 1 LDO LDO AC/DC AC/DC AC/DC Plug.14 Sheet.42 Sheet.43 Sheet.44 Sheet.45 Sheet.46 Sheet.47 Sheet.48 Sheet.49 Sheet.50 Sheet.51 Sheet.52 Sheet.53 Sheet.54 Sheet.55 Sheet.56 Sheet.57 Sheet.58 Board 1 Board 1 Board 1 110/220V AC 110/220V AC 110/220V AC Connector 1.37 Sheet.62 Connector 1.39 3.3V 80mAmax 3.3V 80mAmax 3.3V 80mAmax VOUT = 5V IOUT, max =500mA VOUT = 5V IOUT, max =500mA VOUT = 5VIOUT, max =500mA VOUT = 3.3V IOUT, max =500mA VOUT = 3.3V IOUT, max =500mA VOUT = 3.3VIOUT, max =500mA 5V 30mA typ 5V 30mAtyp 5V 30mAtyp RS485 3 RS-485 RS-485 Humidity Sensor Humidity Sensor Humidity Sensor LDO 3 LDO LDO AC/DC AC/DC AC/DC Plug.97 Sheet.76 Sheet.77 Sheet.78 Sheet.79 Sheet.80 Sheet.81 Sheet.82 Sheet.83 Sheet.84 Sheet.85 Sheet.86 Sheet.87 Sheet.88 Sheet.89 Board 3 Board 3 Board 3 110/220V AC 110/220V AC 110/220V AC Connector 1.114 3.3V 80mAmax 3.3V 80mAmax 3.3V 80mAmax VOUT = 5V IOUT, max =500mA VOUT = 5V IOUT, max =500mA VOUT = 5VIOUT, max =500mA VOUT = 3.3V IOUT, max =500mA VOUT = 3.3V IOUT, max =500mA VOUT = 3.3VIOUT, max =500mA Sheet.96 Sheet.97 Sheet.98 LDO 4 LDO LDO Sheet.103 Sheet.104 USB Plug Sheet.106 Sheet.107 Sheet.108 Sheet.109 Sheet.110 Sheet.111 Sheet.112 Connector 1.137 RS485 4 RS-485 RS-485 Sheet.115 3.3V 80mAmax 3.3V 80mAmax 3.3V 80mAmax Daughter Board Daughter Board Daughter Board Sheet.118 Sheet.119 Sheet.120 Sheet.121 Connector 1.166 VOUT = 3.3V IOUT, max =500mA VOUT = 3.3V IOUT, max =500mA VOUT = 3.3VIOUT, max =500mA Sheet.124 MCU MCU MCU USB USB USB CAN CAN CAN Sheet.125 Control MCU 1 Control MCU Control MCU I2C I2C I2C CAN CAN CAN Sheet.126 Control MCU 2 Control MCU Control MCU I2C I2C I2C CAN CAN CAN Sheet.127 Control MCU 3 Control MCU Control MCU I2C I2C I2C CAN CAN CAN
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Exiting Interactive Block Diagram

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