The JTC's Experience In Cutting Customers' Complaints On Lift Services In Its Industrial And Office Buildings By Installing A Supervisory Control System (SCS)

In 1994, JTC called a contract to install a Supervisory and Control System (SCS) for 68 blocks of its industrial buildings in Singapore. The system then was a state of art design based on a "open system" concept using Programmable Logic Controller (PLC) with automatic telephone dial up facility. To date, about 2650 mechanical and electrical equipment including 400 lifts in JTC's industrial and office buildings are monitored and controlled by this SCS system. The system has many unique functions and features including wireless access, verification logic and fault tracking software for successful operation of the SCS system. The SCS system has since cut the number of complaints from JTC's customers on lift breakdowns by as much as 50%