Tag: Python

Jan 22, 2026 · Eduardo Vieira · Industrial Protocols
Modbus Function Codes: The Definitive Guide (0x01 to 0x17)
Master Modbus function codes with real-world examples in C (libmodbus) and Python (pymodbus). A complete guide to reading coils, inputs, and registers without errors.
Jun 1, 2025 · Industrial Protocols
Modbus RTU & TCP: The Definitive Guide (Protocol, Endianness & MBAP)
Beyond the wire. Master Byte Swapping, Function Codes, and the real structure of Modbus messages for 100% reliable integrations.
May 18, 2025 · Eduardo Vieira · Industrial Connectivity
Connecting Siemens S7-1500 PLCs to the Cloud: OPC UA & Latency Guide
Forget inefficient polling. Learn to use OPC UA Subscriptions, security certificates, and asynchronous Python to send plant data to the cloud robustly.