Replace The Existing Data Logging System And Alarm Indicating System

Main Objective

The work consisted of the removal of three (3) sets of existing analog multi-point recorders (Data Logger), dot matrix printer, and visual alarm indicating system from the existing control cabinet for the three (3) each 6.6 MW generator units, and replace with a new upgraded digital version of data logger with printer and new visual annunciation system.

The Challenge

A variety of unknown temperature sensors was the main challenge, as the new system had to be capable of communicating with multiple types of sensors and no documentation was available for the existing control system. Another interesting aspect was the integration of 30 years old components.

The Solution

To meet these challenges, the DC Engineering team worked on designing a new system, integrating numerous manufacturers so that the result would be a digital data logging system capable of effectively communicating with multiple thermocouples, RTDs of various types, and other sensors, additionally, the system has the capability of storing multiple years of data securely. A complex mix of PLCs, analog input modules, and digital I/O modules now allow generators’ measurements and data logs to be checked from a custom-built “remote workstation” located in the control room.