Blog
Diagnosing Modbus Degradation: From CRC Errors to TCP Timeouts
Modbus doesn't fail loudly, it drifts. Learn how to diagnose serial vs. TCP failures and build a metrics layer that warns you.
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Most Modbus Polling Setups Are Wrong: Here's How to Fix Yours
Most Modbus polling problems aren't hardware failures. They're three configuration mistakes made at commissioning and never revisited. Here's how to fix them.
Why OPC UA Is Not Replacing Modbus (Yet)
OPC UA has every technical advantage. Modbus is still winning. Here's why the replacement hasn't happened and what would actually change that.
Modbus TCP vs Modbus RTU: Reliability, Latency, and Failure Modes
A practical engineering guide to choosing between Modbus RTU and Modbus TCP, covering real latency numbers and failure modes.
Why Modbus Refuses to Die
Learn why Modbus, a 47-year-old protocol with zero security, still dominates industrial automation despite billions invested in modern alternatives
How to Connect Any PLC to MQTT in Under an Hour
Learn how to extract data from Siemens, Allen-Bradley, Omron, Mitsubishi, and Modbus, then publish it to MQTT using FlowFuse.
Modbus RTU (RS485/RS422/RS232) Communications with FlowFuse
Learn how to connect Modbus RTU devices to Node-RED with FlowFuse, covering serial setup and register mapping in detail.
How to Bridge Modbus to MQTT: Step-by-Step Guide
Learn how to bridge Modbus data to MQTT in 2026 and publish it to a Unified Namespace (UNS) using FlowFuse for real-time monitoring and cloud integration.
Best Practices Integrating a Modbus Device With Node-RED (2026)
Modbus is a widely adopted protocol for legacy manufacturing equipment. Learn best practices for integrating it with Node-RED.