Modbus & Industrial Automation
M_Logger 2.0: A Practical Modbus Master for Testing and Diagnostics
What M_Logger 2.0 is designed to do during PLC commissioning, Modbus testing, troubleshooting and data logging.
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Modbus Resources, Guides & Updates
Technical articles for Modbus RTU/TCP, PLC communication, diagnostics, monitoring and M_Logger 2.0.
Modbus & Industrial Automation
Modbus RTU vs Modbus TCP: Which Connection Should You Test?
A practical comparison of Modbus RTU serial communication and Modbus TCP Ethernet communication for commissioning and troubleshooting.
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How to Troubleshoot a Modbus Register That Returns the Wrong Value
A step-by-step approach to register type, address, byte order, word order and data interpretation problems.
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Modbus HEX Diagnostics: Why Raw TX and RX Data Matters
Why inspecting raw Modbus request and response bytes can shorten troubleshooting time during commissioning.
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CSV Data Logging for Modbus: What to Record During Commissioning
How CSV logging can turn a live Modbus test into a useful commissioning record.
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Modbus Polling Intervals: How to Choose a Practical Scan Rate
A practical way to think about Modbus polling intervals without overloading a device or network.
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Modbus Function Codes Explained for Everyday Testing
A practical introduction to common Modbus function codes used when testing coils and registers.
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PLC Commissioning Checklist for Modbus Communication
A reusable checklist for testing Modbus communication between PLCs, HMIs, meters and controllers.
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