ESP32-S3 Industrial PLC Controller schematic architecture for a 24 V industrial PLC with W5500 Ethernet, isolated RS485, 8 opto-isolated digital inputs, and 8 protected high-side outputs.ESP32-S3 Industrial PLC Controller schematic architecture for a 24 V industrial PLC with W5500 Ethernet, isolated RS485, 8 opto-isolated digital inputs, and 8 protected high-side outputs.