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3. HMI Communications: FactoryTalk Linx, Data Servers, and OPC


May 13, 2026 JoeGuardian 0

Understanding How the HMI Talks to the PLC

In an industrial HMI system, the screen is only useful if it can communicate with the controller.

The HMI needs to read machine status …

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2. HMI Architecture: PLC, Driver, Tags, and Screens


May 13, 2026 JoeGuardian 0

Understanding How an Industrial HMI Connects the Operator to the Machine

In the previous post, we explained what an industrial HMI is and why it is important in automation. Now we …

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