Hi friends in this video I have made an Arduino based PLC . our PLC has 5 optically isolated digital inputs active high pins, 8 relay outputs and 2 open collector PWM outputs, and 4 analog inputs 0-10V can be applied to analog inputs. LEDs are used to indicate the status of input and output. I think it is a useful and interesting project and I hope you like this video please like share and subscribe for more