Implementation of process control with programmable controllers

This report gives an example of a complex customized system with a programmable logic controller at the heart of the operation. The challenge to the project engineer was threefold: (1) to find suppliers for the parts or sub-systems for a total system that meets the user´s process needs; (2) to define the responsibilities of the business partners and team members; and (3) to coordinate the efforts of individuals and companies, across great geographical distances and across international borders. It is shown that the technology of the PLC is stable and solid. Moreover, the trends in development are bringing its functionality ever closer to the needs of the process industry. Few will disagree with the suitability of the hardware choices. The second part of the application problem has now taken a clear path to success. The partnership arrangements have made the use of PLCs in process applications feasible on a large scale. It is no longer necessary to have a large staff of engineering talent to implement sophisticated projects