This letter recognizes Eng. Hossam El Dien Mohamed for his work programming, commissioning, and starting up the process control system and energy transfer system for King Abdul-Aziz University's Cooling Utility Plant II. The systems controlled multiple chillers, pumps, fans, storage tanks, and other equipment using a variety of automation controllers communicating over Modbus and Ethernet/IP. Hossam's management and technical skills were credited with achieving full and successful plant operation after progress had stalled.

1. Letter of Recognition & Appreciation
This is to certify that Eng. Hossam El Dien Mohamed made a remarkable job during
Programming, Commission, and Startup of King Abdul‐Aziz University (KAU) Cooling Utility Plant
(CUP II) Process Control System (PCS) and Energy Transfer System (ETS) which composed of:
 CUP II Controlled Plant composed of 5 OM Chillers (including Condenser, Chilled Water
& Glycol Pumps), 14 CYK Chillers (including Condenser & Chilled Water Pumps), 8
Medium Voltage Distribution Pumps (2 Variable & 6 Constant Speeds), Fluid Cooler Fans
(120 Fan), 6 Ice Storage Tanks, and other related items.
 ControlLogix (Rockwell Automation) as Programmable Automation Controller of the
Plant (around 2,000 Digital IO & 600 Analog IOs).
 FactoryTalk View SE (Rockwell Automation) as SCADA of the Plant.
 Modbus RTU Communication with Plant MCCs & Switchgears (around 100).
 Ethernet/IP Communication with CUP I Plant & ETS Controllers.
 MicroLogix (Rockwell Automation) as ETS Control System.
Hossam’s Management capabilities & technical skills have proven to be a milestone for
achieving plant full and successful operation. Until Hossam became involved with the project
progress was at a standstill and organization of work activities was non‐existent.
Date: 31 October 2016
KAU CUP II Consultant
BRADY CONSULTING SERVICES, INC.
Thomas W. Brady