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What's the most ingenious workaround you've seen for keeping a 15-year-old automation system running when the OEM stopped supporting it 5 years ago?

BruceWallace

BruceWallace

2025-12-12

answer

Oh man, I've seen some pretty creative solutions for keeping old automation gear running! One of the most ingenious workarounds I've heard about involved a manufacturing plant that had a critical PLC from the early 2000s that the OEM stopped supporting. The main processor board failed, and replacements were impossible to find.

Here's what they did: The plant's maintenance team reverse-engineered the failing board by studying its schematics (which they luckily still had), then worked with a local electronics shop to create custom replacement circuit boards. They used modern components that were still available and even added some improvements like better heat dissipation and more robust connectors. The kicker? They 3D-printed custom enclosures to make everything fit perfectly in the original chassis.

Another clever approach I've seen is using specialized companies that specialize in legacy automation support. These companies stockpile old parts, repair damaged components, and even create 'drop-in' replacements that work with the original systems. One facility I know of saved about 60% compared to a full system replacement by going this route.

The key takeaway is that with some creativity and the right expertise, you can often keep these old workhorses running for years beyond their expected lifespan. It's all about finding alternative parts sources, considering repair/refurbishment options, and sometimes even creating custom solutions when OEM support disappears.

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