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Computerization

"Smart” devices that communicate on a network have changed the maintenance picture as well as the repairs picture.

When most of today’s electricians started out, hardly anything was computerized. Electrical controls were mostly electro-mechanical relays. Then such things as PLCs and solid-state relays became common. Now we even have “smart” devices that communicate on a network.

This has not only changed the maintenance picture, it’s changed the repairs picture.

If you understood relay operation and ladder logic, you could troubleshoot and repair the controls. Y

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