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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 2TW007TW007TW007Sheet.2RS485 2RS-485RS-485IAQ SensorIAQ SensorIAQ SensorLDO 2LDOLDO AC/DCAC/DCAC/DCPlugSheet.11Sheet.12Sheet.13Sheet.14Sheet.15Sheet.16Sheet.17Sheet.18Sheet.19Sheet.20Sheet.21Sheet.22Sheet.23Sheet.24Board 2Board 2Board 2 110/220V AC110/220V AC110/220V ACConnector 1.78 3.3V 80mAmax3.3V 80mAmax3.3V 80mAmax VOUT = 5V IOUT, max =500mAVOUT = 5V IOUT, max =500mAVOUT = 5VIOUT, max =500mA VOUT = 3.3V IOUT, max =500mAVOUT = 3.3V IOUT, max =500mAVOUT = 3.3VIOUT, max =500mACAN BusCAN BusCAN BusSheet.32Sheet.33RS485 1RS-485RS-485Flow SensorFlow SensorFlow SensorLDO 1LDOLDOAC/DCAC/DCAC/DCPlug.14Sheet.42Sheet.43Sheet.44Sheet.45Sheet.46Sheet.47Sheet.48Sheet.49Sheet.50Sheet.51Sheet.52Sheet.53Sheet.54Sheet.55Sheet.56Sheet.57Sheet.58Board 1Board 1Board 1110/220V AC110/220V AC110/220V ACConnector 1.37Sheet.62Connector 1.393.3V 80mAmax3.3V 80mAmax3.3V 80mAmax VOUT = 5V IOUT, max =500mAVOUT = 5V IOUT, max =500mAVOUT = 5VIOUT, max =500mAVOUT = 3.3V IOUT, max =500mAVOUT = 3.3V IOUT, max =500mAVOUT = 3.3VIOUT, max =500mA5V 30mA typ5V 30mAtyp5V 30mAtypRS485 3RS-485RS-485Humidity SensorHumidity SensorHumidity SensorLDO 3LDOLDO AC/DCAC/DCAC/DCPlug.97Sheet.76Sheet.77Sheet.78Sheet.79Sheet.80Sheet.81Sheet.82Sheet.83Sheet.84Sheet.85Sheet.86Sheet.87Sheet.88Sheet.89Board 3Board 3Board 3 110/220V AC110/220V AC110/220V ACConnector 1.114 3.3V 80mAmax3.3V 80mAmax3.3V 80mAmax VOUT = 5V IOUT, max =500mAVOUT = 5V IOUT, max =500mAVOUT = 5VIOUT, max =500mA VOUT = 3.3V IOUT, max =500mAVOUT = 3.3V IOUT, max =500mAVOUT = 3.3VIOUT, max =500mASheet.96Sheet.97Sheet.98LDO 4LDOLDOSheet.103Sheet.104USB PlugSheet.106Sheet.107Sheet.108Sheet.109Sheet.110Sheet.111Sheet.112Connector 1.137RS485 4RS-485RS-485Sheet.115 3.3V 80mAmax3.3V 80mAmax3.3V 80mAmaxDaughter BoardDaughter BoardDaughter BoardSheet.118Sheet.119Sheet.120Sheet.121Connector 1.166 VOUT = 3.3V IOUT, max =500mAVOUT = 3.3V IOUT, max =500mAVOUT = 3.3VIOUT, max =500mASheet.124MCUMCUMCU USBUSBUSB CANCANCANSheet.125Control MCU 1Control MCUControl MCUI2CI2CI2CCANCANCANSheet.126Control MCU 2Control MCUControl MCU I2CI2CI2C CANCANCANSheet.127Control MCU 3Control MCUControl MCU I2CI2CI2C CANCANCAN
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