WHERE DOES THE INTEGRATOR GO? - Where Does the Control System Integrator Belong in the Construction Process?

摘要

It all started in the early 1970s with the debut of the programmable logic controller (PLC), which allowed discrete manufacturing and smaller process plants to enjoy the benefits of automatic control. Before this time, the automatic control market was the province of large process plants and manufacturers of direct-digital and then distributed-control systems, The PLC and the advent of the microprocessor a few years later changed the game, Since applications for PLCs tended to be below the horizon of the large controls manufacturers, and since a good deal of specialized knowledge was required to apply them, a new kind of third-party implementation was required, and a new industry sprang up. These firms came to be called control system integrators (CSIs).