ADAM-518 – 24-Ch RS-485 Thermocouple Input Module by Advantech

The ADAM-518 and ADAM-518E from Advantech are advanced 24-channel thermocouple input modules engineered for applications requiring precise temperature monitoring across multiple measurement points. These modules consolidate temperature sensing into a single compact unit, significantly reducing module count while saving wiring complexity and cabinet space in industrial installations. Both variants support the most widely used thermocouple types including K, J, T, E, N, R, S, and B, covering measurement ranges from -200°C to +1800°C depending on thermocouple type. The modules deliver exceptional measurement accuracy with 16-bit resolution and ±0.5°C cold junction compensation accuracy, ensuring reliable temperature data for critical process control applications. The ADAM-518 utilizes RS-485 communication with ADAM ASCII and Modbus/RTU protocols, supporting speeds up to 115200 bps over distances up to 1200 meters. The ADAM-518E offers enhanced connectivity through 10/100 Base-T Ethernet with Modbus/TCP protocol, featuring dual LAN ports that support daisy-chain connections to simplify network topology and reduce switch costs. The Ethernet model includes auto-bypass functionality that maintains network connectivity during power loss, minimizing downtime in critical systems. Additionally, the ADAM-518E incorporates built-in Graphic Condition Logic allowing simple control logic to run directly on the module without requiring external PLCs or computers. Both modules feature robust industrial design with 3,000 VDC isolation voltage, comprehensive ESD protection, reverse voltage protection, and wide operating temperature range from -10 to 70°C. The modules support flexible mounting options including DIN rail and wall mounting, making them suitable for diverse industrial environments. Typical applications include process automation, environmental monitoring systems, HVAC control, food processing temperature monitoring, and industrial furnace control where multi-point temperature measurement is essential. Available from Recab, your Nordic partner for Advantech remote I/O solutions.