dear, I am struggling with a problem. I wish you to help me. in your example pc is master device and arduino is slave device. so you read distance from arduino . But in hmi application users enter some datas to hmi. Let's assume that there are products moving on the conveyor. and conveyor will stop when product number reach to 100. so user will enter this "100" value to the hmi screen. but at this example slave must read this data from master. Is there a way to do this? wish to help. thanks dear.
can you please provide us with code you wrote for thos project.i am working on a similer project in which i wand to send bool data to the PLC s7-1200 via rs-485 modebus rtu.but coulden't
