A STM32-based relay control system supporting both Modbus RTU (RS485) and Modbus TCP protocols. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and ...
It's time to get a little more specific with what the PLC CPU controls: PLC I/O! This article will discuss discrete I/O, analog I/O and briefly introduce industrial communications protocols. We talked ...
“Not being overcomplicated is Modbus TCP/IP’s biggest draw, not only for PLCs, but especially for PC-based applications,” said Jason Haldeman, senior product specialist for I/O and networking at ...
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