Keywords: Programmable Logic Controllers, PLCs, Installed Base, Lifecycle.
ARC Advisory Group's market studies focus on the current market situation for automation and other products by providing base year market revenue volume numbers plus a five-year forecast. However, some market players may find information about the installed base of products and systems more useful information than revenue figures.
For example, to allocate service personnel and skills for a target market, a provider of third-party industrial services needs to understand the number, age, and brands of control systems installed. This may include legacy systems still in operation for 20 years or more.
ARC has devised a method to calculate the installed base of automation systems using a probabilistic approach based on our vast knowledge base. This Insight describes some of the results of the PLC (programmable logic controller) installed base.
Around 36 Million PLCs Installed Worldwide
According to ARC's analysis, there are currently around 36 million pro-grammable logic controllers (PLC) installed worldwide with an average age of 4.2 years. The largest number of PLCs was installed in the boom years of 2008, 2010, and 2011. According to our model's predictions, around 70 percent of the current installed base will be replaced by 2017 (about 24 million PLCs).
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