Modbus OPC Server 3.12

Modbus OPC Server by Eldridge Engineering, Inc. is a reliable communications bridge that exposes data from Modbus-enabled instruments and controllers to any OPC-compliant client application. It supports Modbus TCP over Ethernet as well as serial Modbus RTU and ASCII, allowing SCADA, HMI, and data collection systems to access real-time device data through a single, standards-based interface.

Designed for fast deployment, the server provides a straightforward configuration environment for defining devices, polling rates, and tag mappings. It handles common Modbus data types—coils, discrete inputs, holding registers, and input registers—with options for word and byte ordering, 16/32-bit integers, and IEEE floating-point values. Efficient block reads, configurable timeouts and retries, and detailed diagnostics help optimize performance and simplify troubleshooting across small installations and large, multi-device networks.

Engineers can scale and normalize raw values into engineering units, organize tags for maintainability, and monitor connection health to improve reliability. The server runs on Windows and integrates smoothly with popular OPC client software used in manufacturing, energy, building automation, and water/wastewater applications.

Modbus OPC Server is developed by Eldridge Engineering, Inc.. The most popular versions of this product among our users are: 1.8 and 3.1. The names of program executable files are ModbOPC.exe, Modbus.exe, ModbusOPCConfigurator.exe and opc_modbus.exe.