Renesas Electronics Corporation
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Industrial Ethernet Gateway and Sensor System

Overview

The Renesas Ethernet system offers quick-start designs to add industrial Ethernet connectivity to sensors and embedded devices. It supports pre-certified PROFINET®, EtherNet/IP™, and EtherCAT® protocols, reducing development time and complexity. This flexible platform includes a gateway for connecting Modbus RTU/TCP devices to modern Ethernet networks and a sensor module for direct Ethernet integration. Developers can choose between the certified multiprotocol industrial Ethernet module, ideal for quick integration, or the high-performance industrial Ethernet MPU in a system-on-module (SoM), which eliminates the need for a separate MCU and offers enhanced processing capabilities.

System Benefits​:

  • Provides out-of-the-box support for PROFINET, EtherNet/IP, and EtherCAT.
  • Includes a pre-programmed Ethernet module for rapid development.
  • Features integrated dual-port RJ45 and an industrial Ethernet switch.
  • Offers a gateway design to bridge Modbus RTU/TCP to industrial Ethernet.
  • Enables direct Ethernet-connected sensors with the sensor design.
  • The RZ/N2L SoM supports standalone operation with custom peripherals.

Block Diagram

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Industrial Ethernet Gateway

Template 1 Connector dotted line.1187 Connector Arrow.1192 Connector Line.1201 Connector Line.1090 1.2AMax 1.2AMax 1.2AMax Board - Optional.1213 Board - Optional.1210 Board - Optional.1207 Line.1054 Transformer.1056 Line.841 Inductor Air Core.509 Sheet.1059 Sheet.1060 Sheet.1061 Sheet.1062 Sheet.1063 Sheet.1064 Sheet.1065 Sheet.1066 Sheet.1067 Line.29 Inductor Air Core.212 Sheet.1070 Sheet.1071 Sheet.1072 Sheet.1073 Sheet.1074 Sheet.1075 Sheet.1076 Sheet.1077 Sheet.1078 Line.1079 Line.1080 Line.1081 RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn Bi-directional.1086 Line Bi-directional Dotted.1093 Input arrow.1095 24Vdc input 24Vdc input 24Vdc input 5V 5V 5V Connector Line.1100 800mAMax 800mAMax 800mAMax Connected signals arrow.1113 Line.1143 Line.1144 m m m n>m n>m n>m Connector Arrow.1147 Connector Arrow.1148 >5.5Visolated >5.5Visolated >5.5Visolated Connector Arrow.1154 Bi-directional.1155 Bi-directional.1156 Isolated RS-485 Isolated RS-485 Isolated RS-485 A A A B B B Connector 2.1160 Connector 2.1161 250mAMax 250mAMax 250mAMax 5Visolated 5Visolated 5Visolated Connector Arrow.1164 RxD RxD RxD Connected signals arrow.1166 Connector Arrow.1167 Connector Arrow.1168 TxD TxD TxD Connected signals arrow.1170 2mATyp 2mATyp 2mATyp 2mATyp 2mATyp 2mATyp Dir Dir Dir Crystal.1179 Sheet.1180 Sheet.1181 Sheet.1182 Sheet.1183 Sheet.1184 Sheet.1185 Sheet.1186 Connector dotted line.1188 Horizontal Wire Bundle.1189 Communication Lines B.795 4 4 4 Dir Dir Dir Line.1196 TxD TxD TxD Line.1198 Line.1199 Connector Arrow.1200 Connector Arrow.1202 RxD RxD RxD Vertical Wire Bundle.1204 2 2 2 Sheet.1206 Isolated Isolated Isolated WS131-1 WS131-1 WS131-1 Option 1 - R-IN32M3-Module Option 1 - R-IN32M3-Module Option 1 - R-IN32M3-Module Connector Arrow.1214 Connector Arrow.1215 RxD RxD RxD Connector Arrow.1219 Option 2 – Industrial Ethernet MPU Option 2 – Industrial Ethernet MPU Option 2 – Industrial Ethernet MPU Dir Dir Dir Connector dotted arrow.1222 TxD TxD TxD Ethernet PHY 1 Ethernet PHY 1 EthernetPHY 1 Ethernet PHY 2 Ethernet PHY 2 EthernetPHY 2 Bi-directional.1226 Bi-directional.1227 RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn Bi-directional.1232 Connector dotted double arrow.1233 3.3V 3.3V 3.3V Bi-directional.1235 630mAMax 630mAMax 630mAMax Buck Buck Buck 80mATyp 80mATyp 80mATyp Industrial Gigabit Ethernet SoM Industrial Gigabit Ethernet SoM Industrial Gigabit Ethernet SoM Sheet.1246 Host MCU Host MCU Host MCU Vdd Vdd Vdd SPI SPI SPI Int. Osc. Int. Osc. Int. Osc. GPIO GPIO GPIO UART UART UART Sheet.1247 Multiprotocol Industrial Ethernet Module Multiprotocol Industrial Ethernet Module Multiprotocol Industrial Ethernet Module Ethernet PHY 1 Ethernet PHY 1 Ethernet PHY 1 Ethernet PHY 2 Ethernet PHY 2 Ethernet PHY 2 SPI SPI SPI Vdd Vdd Vdd Crystal.1102 Sheet.1103 Sheet.1104 Sheet.1105 Sheet.1106 Sheet.1107 Sheet.1108 Sheet.1109 40MHz Osc 40MHz Osc. 40MHzOsc. Optocoupler Optocoupler Optocoupler Optocoupler Optocoupler Optocoupler Optocoupler Optocoupler Optocoupler LDO LDO LDO RS-485 TxRx RS-485 TxRx RS-485 TxRx Connector Arrow.1111 Buck Buck Buck

Buck

Buck Regulators (Integrated FETs)

Buck

Buck Regulators (Integrated FETs)

Multiprotocol Industrial Ethernet Module

Host MCU

RA Arm Cortex-M MCUs

LDO

Linear Regulators (LDO)

RS-485 TxRx

RS-485/422 with Enhanced ESD Protection

Optocoupler

High-Speed CMOS Output Photocouplers / Optocouplers

Optocoupler

High-Speed CMOS Output Photocouplers / Optocouplers

Optocoupler

High-Speed CMOS Output Photocouplers / Optocouplers

Industrial Gigabit Ethernet SoM

The Industrial Gigabit Ethernet System-on-Module (SoM) enables high-speed data transmission, ensuring that large data packets are transmitted quickly and efficiently with minimal latency.
View Diagram

Industrial Ethernet-Connected Sensor

Template 1 Connector Line.1239 Connector Arrow.1632 Crystal.1256 Sheet.1257 Sheet.1258 Sheet.1259 Sheet.1260 Sheet.1261 Sheet.1262 Sheet.1263 Connector dotted line.1264 Connector dotted line.1340 Board - Optional.1342 Board - Optional.1210 Vertical Wire Bundle.1311 2 2 2 Sheet.1313 WS131-2 WS131-2 WS131-2 Label Text 10pt.1230 VDD33 VDD33 RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn Bi-directional.1235 Line Bi-directional Dotted.1241 Horizontal Wire Bundle.1189 Communication Lines B.795 4 4 4 Option 1 - R-IN32M3-Module Option 1 - R-IN32M3-Module Option 1 - R-IN32M3-Module Label Text 10pt.1284 VDD33 VDD33 Input arrow.1286 24Vdc input 24Vdc input 24Vdc input Connector Arrow.1288 3V3 3V3 3V3 Connected signals line.1290 Connector 1.1291 Input Protect & Filter Input Protect & Filter Input Protect & Filter Connector Arrow.1297 Vertical Wire Bundle.1298 1..3 1..3 1..3 Sheet.1300 Bi-directional.1310 10mATyp 10mATyp 10mATyp 10mATyp 10mATyp 10mATyp Touch Key.1322 Sheet.1323 Sheet.1324 Sheet.1325 Sheet.1326 Sheet.1327 Sheet.1328 Sheet.1329 Sheet.1330 Sheet.1331 Bi-directional.1332 Bi-directional.1338 Bi-directional.1339 630mAMax 630mAMax 630mAMax Option 2 - Industrial Ethernet MPU Option 2 - Industrial Ethernet MPU Option 2 - Industrial Ethernet MPU Input arrow.1387 24Vdc input 24Vdc input 24Vdc input Connector Arrow.1389 3V3 3V3 3V3 Input Protect & Filter Input Protect & Filter Input Protect & Filter Vertical Wire Bundle.1396 1..3 1..3 1..3 Sheet.1398 10mATyp 10mATyp 10mATyp Touch Key.1404 Sheet.1405 Sheet.1406 Sheet.1407 Sheet.1408 Sheet.1409 Sheet.1410 Sheet.1411 Sheet.1412 Sheet.1413 630mAmax 630mAmax 630mAmax Air Quality Sensor Air Quality Sensor Air Quality Sensor Bi-directional.1521 Humidity Sensor Humidity Sensor Humidity Sensor Sensor (Others) Sensor (Others) Sensor (Others) Connected signals arrow.1531 Connected signals arrow.1532 Connected signals arrow.1533 Connected signals arrow.1534 Flow Sensor Flow Sensor Flow Sensor Connected signals arrow.1536 Connected signals arrow.1537 Air Quality Sensor Air Quality Sensor Air Quality Sensor Humidity Sensor Humidity Sensor Humidity Sensor Sensor (Others) Sensor (Others) Sensor (Others) Connected signals arrow.1542 Connected signals arrow.1543 Connected signals arrow.1545 Flow Sensor Flow Sensor Flow Sensor Connected signals arrow.1547 Connected signals arrow.1548 Vertical Wire Bundle.1343 2 2 2 Sheet.1345 n n n Vertical Wire Bundle.1345 Line Arrow.1622 Connector 1.160 Line Arrow.1624 Line Arrow.1625 Line Arrow Connector 1.160.1627 Line Arrow.1628 Bi-directional.1633 Connector Arrow.1634 RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn RJ45 Conn Bi-directional.1607 Line Bi-directional Dotted.1610 Buck Buck Buck Buck Buck Buck Sheet.1641 Industrial Gigabit Ethernet SoM Industrial Gigabit Ethernet SoM Industrial Gigabit Ethernet SoM I2C I2C I2C ADC ADC ADC Ethernet PHY 1 Ethernet PHY 1 Ethernet PHY 1 Ethernet PHY 2 Ethernet PHY 2 Ethernet PHY 2 Sheet.1642 Host MCU Host MCU Host MCU Vdd Vdd Vdd SPI SPI SPI Int. Osc. Int. Osc. Int. Osc. SDADC or ADC SDADC or ADC SDADC or ADC I2C I2C I2C GPIO GPIO GPIO INT INT INT INT INT INT Sheet.1643 Multiprotocol Industrial Ethernet Module Multiprotocol Industrial Ethernet Module Multiprotocol Industrial Ethernet Module Ethernet PHY 1 Ethernet PHY 1 Ethernet PHY 1 Ethernet PHY 2 Ethernet PHY 2 Ethernet PHY 2 SPI SPI SPI Vdd Vdd Vdd Crystal.1243 Sheet.1244 Sheet.1245 Sheet.1246 Sheet.1247 Sheet.1248 Sheet.1249 Sheet.1250 INT INT INT INT INT INT 40MHz Osc. 40MHz Osc. 40MHzOsc.

Buck

Buck Regulators (Integrated FETs)

Buck

Buck Regulators (Integrated FETs)

Multiprotocol Industrial Ethernet Module

Host MCU

RA Arm Cortex-M MCUs
RL78 Low-Power 8 & 16-Bit MCUs
RX 32-Bit Performance/Efficiency MCUs
Application Note

Industrial Gigabit Ethernet SoM

The Industrial Gigabit Ethernet System-on-Module (SoM) enables high-speed data transmission, ensuring that large data packets are transmitted quickly and efficiently with minimal latency.
View Diagram