Arduino PLC IoT Gateway USR-EG118

Product Description The Arduino PLC IoT Gateway USR-EG118 is a compact and reliable industrial IoT gateway designed for PLC remote monitoring, data acquisition, and smart automation. It bridges PLCs, sensors, and industrial devices with cloud platforms via Ethernet, WiFi, or cellular networks. Featuring multi-protocol support (Modbus TCP/RTU, MQTT, HTTP, SNMP) and an easy-to-use web configuration interface, the USR-EG118 ensures seamless integration into automation systems. It is widely used for remote equipment management, industrial control, smart energy monitoring, and IIoT solutions. Explore more industrial IoT and automation products at PowerMark Solution. Features Industrial-grade IoT gateway for PLC and automation systems Supports Modbus TCP/RTU, MQTT, HTTP, SNMP protocols Dual Ethernet ports for flexible networking WiFi connectivity for wireless integration RS485/RS232 serial interfaces for PLC connection Web-based configuration for easy setup Supports remote monitoring and data acquisition Compact and durable design for industrial environments Low power consumption, stable 24/7 operation Applications Industrial IoT (IIoT) systems PLC remote monitoring and control Smart energy and power management Building automation and HVAC systems Smart factory and Industry 4.0 projects Remote equipment and machine monitoring IoT gateway for SCADA and cloud platforms Smart agriculture and environmental monitoring USR-EG118 | Open Source IoT GatewayESP32 Chipset, C Language SDK, Arduino IDE DevelopmentUSR-EG118 is an IoT gateway that integrates the ESP32 module designed for Arduino. It features a power-efficient Xtensa® 32-bit LX6 MCU， processor running at 240 MHz, along with 4MB of PSRAM and up to 8MB of SPI flash memory on-board. With its integrated Wi-Fi/BLE module and additional wired/wireless interfaces, this device becomes a highly versatile addition to Industrial IoT solutions. Rich Hardware Interface Serial Port: 1*RS485/232. I/O: 2*DO, 1*DI, 1*AI. Ethernet: 1*RJ45. Wi-Fi: 802.11b/g/n. Transmitting power: up tp 20.5 dBm. Theory Speed: Up tp 150Mbps. Radio frequency: 2412 ~ 2484 MHz. BLE: Compatable with BEL4.2. Installation: Wall & DIN Rain mounting. ESP32-WROVER-E Professor: Dual-core Xtensa® 32-bit LX6 MCU. Main Frequency: Up to 1.2GHz. Flash: 4M. RAM: 8M.   Rich Networking MethodsUSR-EG118 provides a wealth of networking methods: AP，STA AP STA , AP LAN,AP WAN. Through different networking methods, the data communication between the serial port device/LAN device and the remote server/LAN server can be realized, which can meet the complex network application requirements of customers. Access to Cloud PlatformThe USR-EG118 supports the AWS platform, PUSR provides demo, and users only need to modify the parameters corresponding to their accounts on the basis of demo to achieve data monitoring function through AWS. The demo is developed with C language. Easy to DevelopeThe product supports Ardunio IDE and ESP-IDF for development programming, convenient for users to choose their own familiar development tools, quickly enter the development state, speed up the development progress. ApplicationsFor the rich hardware interface and networking methods, this device can be applied in a variety of scenarios, especially scenarios where users need to collect or control serial devices and IO devices simultaneously, such as: Wastewater Treatment, Agricultural Irrigation, Solar Energy, Intelligent Farming etc. Technical Specifications Specification Details Model USR-EG118 Ethernet Ports Dual 10/100 Mbps Ethernet Wireless WiFi 802.11 b/g/n Serial Interfaces RS485, RS232 Protocols Modbus TCP/RTU, MQTT, HTTP, SNMP Configuration Web-based GUI Power Supply DC 9–36V Operating Temp -20°C to 70°C Dimensions Compact industrial enclosure Package Includes 1 × Arduino PLC IoT Gateway USR-EG118 1 × User Manual / Quick Start Guide Documentation Works with Arduino IDE, Modbus PLCs, MQTT brokers, and IoT platforms. Compatible with cloud services for industrial automation and remote data logging. FAQs Q1: What is the main use of USR-EG118?A: It connects PLCs and industrial devices to IoT/cloud platforms for monitoring and control. Q2: Which communication protocols are supported?A: Modbus TCP/RTU, MQTT, HTTP, and SNMP. Q3: Does it have WiFi connectivity?A: Yes, it supports WiFi in addition to Ethernet. Q4: Can I use it with Arduino PLCs?A: Yes, it is designed to work with Arduino-based PLCs as well as standard PLCs. Q5: Does it support RS485?A: Yes, RS485 and RS232 interfaces are available. Q6: How is it configured?A: Through a user-friendly web-based configuration interface. Q7: What power supply does it require?A: DC 9–36V wide input range. Q8: Is it suitable for harsh environments?A: Yes, operating temperature ranges from -20°C to 70°C. Q9: Can it work with SCADA systems?A: Yes, it integrates with SCADA and cloud platforms for IIoT. Q10: Who should use this device?A: Engineers, automation developers, and industries looking for PLC-to-cloud IoT connectivity.