I am a Software engineer and I need to make some program (TCP/IP client) that connect to Ethernet with more than one Ethernet controller devices (TCP/IP Server) that control some electrical components (ex: stepper motor)
The program will send an command to that device so it can control a stepper motor for example using TCP/IP protocol
My Question is
Is there any product available on the market like this generic Ethernet controller? or I have to build my own product using Ethernet Microcontroller (ex. pic18 J family) ?
Any recommendation are welcomed, I am not an expert in electronics field?