8. PLC Memory Basics: Bits, Words, DINTs, and Tags ( 8 of 35 )


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To understand PLC programming, you need to understand how a PLC stores information.

A PLC does not only turn inputs and outputs ON or OFF. It also stores data in memory.

That …

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28. HMI Basics for PLC Technicians ( 28 of 35 )


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An HMI, or Human Machine Interface, is the screen that allows operators and technicians to interact with a machine or process.

A PLC controls the machine, but the HMI gives the …

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33. PLC Programming Best Practices: Structure, Tags, Comments, and Troubleshooting ( 33 of 35 )


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PLC Programming Best Practices

A PLC program should not only make the machine run.

A good PLC program should also be:

Easy to understand
Easy to troubleshoot
Easy to modify
Easy to document
Easy to recover
Safe to …

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