Current State of the Industry
In 2014, ARC Advisory Group reported that 88% of process manufacturers acknowledged the use of automation beyond the manufacturer's obsolescence date.
According to ARC Advisory Group, there is currently more than $65 billion worth of legacy automation assets reaching the end of their useful life. And though some would like to think these systems can run and be serviced indefinitely, it is simply not possible.
After operating a PLC-5® or SLC® controller for over 20 years, for example, maintenance might start to feel like the controller is bulletproof - that since it has made it so long without a problem, it will continue to do so. But, as it often does in life, age wins in the end and serviceability will be limited or even non-existent.