This training webinar introduces common serial communication standards used in industrial automation—RS-232, RS-485, and RS-422—and explains where each one fits based on distance, speed, and network topology. It reviews practical application scenarios like connecting legacy serial instruments, PLCs, power meters, and remote I/O modules, and highlights typical limitations of RS-232 in plant environments compared to multi-drop RS-485 networks. The video then walks through ICP DAS USA connectivity solutions that help engineers bridge and extend serial networks, including RS-232↔RS-485/RS-422 converters, USB-to-serial converters, serial-to-Ethernet device servers with virtual COM port support, and programmable device server options that enable long-distance serial connectivity across Ethernet switches, routers, and even the internet for remote access and troubleshooting.
