Posts tagged "Troubleshooting"
2 articles across the Voltrus blog.
This collection brings together every Troubleshooting article published on the Voltrus blog. "Modbus Exception Codes Explained: Illegal Function, Data, Address (2026 Troubleshooting)", "Modbus RTU Troubleshooting Guide: CRC Errors, Timeouts, and Wiring" — each one is a practical, hands-on guide written for engineers and system integrators. Whether you are choosing between protocols, troubleshooting a connection, or planning an integration, these articles cover the concepts, the trade-offs, and the step-by-step details you need.
Modbus Exception Codes Explained: Illegal Function, Data, Address (2026 Troubleshooting)
Modbus exception codes 01–08 decoded: Illegal Function, Illegal Data Address, Illegal Data Value, Slave Device Failure. What each exception means, why your master gets it, and how to fix the request.
Read articleModbus RTU Troubleshooting Guide: CRC Errors, Timeouts, and Wiring
Fix Modbus RTU communication errors. Step-by-step troubleshooting for CRC errors, timeouts, and wiring problems. How to read Modbus RTU frames and diagnose RS485 bus issues.
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