A flexible acquisition cycle for incompletely defined fieldbus protocols
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Updated: May 2, 2026

Data Acquisition Protocol for Determining Embedded Sensitivity Functions
Published on: April 20, 2016
Vasile-Gheorghita Gaitan1, Nicoleta-Cristina Gaitan1, Ioan Ungurean1
1Stefan cel Mare University of Suceava, Universitatii Street no. 13, 720229 Suceava, Romania.
Abstract:
Real time data-acquisition from fieldbuses strongly depends on the network type and protocol used. Currently, there is an impressive number of fieldbuses, some of them are completely defined and others are incompletely defined. In those from the second category, the time variable, the main element in real-time data acquisition, does not appear explicitly. Examples include protocols such as Modbus ASCII/RTU, M-bus, ASCII character-based, and so on. This paper defines a flexible acquisition cycle based on the Master-Slave architecture that can be implemented on a Master station, called a Base Station Gateway (BSG). The BSG can add a timestamp for temporal location of data. It also presents a possible extension for the Modbus protocol, developed as simple and low cost solution based on existing hardware.
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