Industrial Automation Interview Questions

Modbus Interview Questions and Answers: Essential Knowledge

What is Modbus? What are the different variants of Modbus?  Modbus has several variants, each tailored to specific communication needs: How does Modbus communication work? What are the common Modbus function codes? Common Modbus function codes dictate specific actions in Modbus communication. Key ones include: What are holding registers and input registers in Modbus?  In …

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