Kirkuk Refinery Unit 105 and 107 Design, Supply, Install and Commissioning for New DCS system

Project Overview

The project involved upgrading two units (unit 105 and 107) in Kirkuk Refinery from an obsolete analog control scheme to a modern Siemens SIMATIC PCS 7 V9.1 Distributed Control System.
The new system architecture was built on high-availability, redundant Siemens CPU 410H controllers. Field instrumentation signals from the heater, crude tower, diesel and kerosene strippers were connected through SIMATIC ET 200SP distributed I/O modules
The program was developed using Siemens Control Module Types (CMT). This modular, object-oriented programming approach standardized the logic blocks across both refinery units.
The core functionality of the PCS 7 system for this project relied heavily on integrated PID controllers to stabilize and optimize the refinery’s process loops.