Embedded Edge Calculation Coprocessing for PLCs
Offload IF97 steam/water, mass flow, and energy calculations to a dedicated module—connected via Modbus RTU over RS‑485 and mapped directly into your PLC holding registers.
On-edge coprocessing for critical energy calculations
The Robert Owen Inc. ROI-IOM module is a DIN-rail mounted embedded coprocessor designed to sit beside your PLC and handle intensive thermodynamic and flow calculations.
- Deterministic: Fixed-cycle calculation engine
- Configurable: Constants written via Modbus
- Industrial: RS‑485 integration
Key capabilities
- IF97 steam/water property calculations
- Mass flow and volumetric flow
- Energy and BTU calculations
- Register-mapped configuration and diagnostics
Calculation engines on board
IF97 thermodynamic calculations
Steam and water properties per IAPWS IF97.
Mass flow calculations
Instantaneous mass and volumetric flow.
Energy and BTU calculations
BTU, kWh-equivalent, and accumulated energy metrics.
Modbus RTU RS‑485 integration
Configuration, constants, and results are exposed through a structured holding register map.
- Write constants
- Feed inputs
- Read results
Electrical and mechanical specifications for the ROI-IOM can be found at ROI-IOM Series – Signal Conditioning, Processing, & Data Acquisition | Robert Owen Inc.
Experience that scales from one sensor to hundreds
Robert Owen has years of experience in connecting sensors and software together. Because we code custom software solutions, we can deliver the approach most suited to the project. From a single sensor to hundreds, we have the pieces required to build complete monitoring solutions.
Robert Owen can assist with Sensor Signal Conditioning, Sensor Signal Processing, and Sensor Data Acquisition as part of a flexible range of sensor signal connection services.
To learn more, Contact Us — we look forward to answering your questions.