Synchronized Micro-Controllers-based Data Acquisition System for Energy Plants using Modbus Protocol

Real-time simulators are powerful devices able to deal in real-time with input and output signals. Among others, some extensions provide communication protocol implementation possibilities, that are often expensive and could have utilization limitations. Using a programmable micro-controller can be a solution for the price and flexibility of the communication. However, the micro-controller must be able to provide reliable output in terms of time and value. This paper proposes two synchronized Modbus communication interfaces with two real power devices. The system created enables the data acquisition of variables stored in the Modbus registers of the devices.