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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, with high reliability and cost performance. Sensors are also widely used in industrial applications to measure, for example, air quality and humidity. This design illustrates a sensor data collection network using the CAN functionality in the Renesas’ Arm® core MCU platform, RA2L1 with an embedded M23 core. CAN transceivers are connected by an isolated RS-485 transceiver and an inverter. Additionally, different Renesas sensor modules work on CAN networks.

System Benefits​:

  • Arm® Cortex®-M23 core, running on 48MHz for outstanding performance
  • Encryption library integrated into the MCU for safety communication
  • Robust communication interface implementing high-speed RS-485 transceiver

Comparison

Applications

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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 30mA typ 5V 30mA typ 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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