[导读]在老旧产线改造中，常有大量RS485 Modbus RTU设备（温湿度、电表、变频器）需要接入上位机或MES，但它们不支持TCP。此时用Raspberry Pi（树莓派）运行Modbus TCP↔RTU网关程序，既能做协议转换，又能充当边缘数据预处理节点。本文基于Raspberry Pi OS + pymodbus库，给 ...

Hosted, written, and reported by Maurice Chammah and Alvin Melathe Produced by Alvin Melathe Edited by Jen Guerra and Anita Badejo Original music by Adam Dorn aka Mocean WorkerMatthias Bossi and Jon ...

Alex has been a video game journalist since 2019. You can find her articles on IGN, Android Central, Windows Central, GameRant, and more. She has written on a variety of topics including PC gaming, ...

PHOENIX — Amid new revelations of education voucher misspending, Arizona’s Republican majority at the legislature has shown no inclination to create stricter laws. A 12News review of millions of ESA ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Prosecutors in multiple counties announced charges for individuals ...

Original music by Martin D. FowlerMarion Lozano and Dan Powell Engineered by Phoebe Wang When the reporter Dyan Neary attended a county commissioners’ meeting in the Lehigh Valley in Pennsylvania, she ...

Designed by Namnam in Vietnam, the ESP32 Modbus gateway is built to communicate with PLCs and industrial sensors over Modbus RTU (RS-485) or Modbus TCP/IP (Ethernet/Wi-Fi). Designed for use in farms, ...

ST. PAUL — The Minnesota Supreme Court created doubt Wednesday, Aug. 6, over the viability of a decades-old state law that makes it a crime to possess certain firearms that lack serial numbers. In ...

In his decades-long career in tech journalism, Dennis has written about nearly every type of hardware and software. He was a founding editor of Ziff Davis’ Computer Select in the 1990s, senior ...