Ageing control system? Deciding when it's time to upgrade

摘要

Most new machines already include the latest technologies in their control systems. This is expected from an OEM keen to retain a hard-won reputation and market leadership. End users, however, have different criteria to those of OEMs. Legacy systems are driven hard to earn a decent return on investment, but at some stage the end user will need to decide whether or not the time has come to embark on a machine control system upgrade. When and to what extent a migration from an ageing to a fully up-to-date control system is undertaken will depend on a range of factors.