Design scheme of Small PLC based on t5l1

—— From Devon Developer Forum

Devon T5L Series dual core chips have high dominant frequency , Strong image processing ability , It can be used to build miniature PLC 、 Handle HMI applications . Ben PLC Scheme is based on T5L1 chip design , The basic introduction is as follows ：

Basic function

• 14 Circuit digital switching value input , With optocoupler isolation ;

• 8 road 0~10V（0~20mA） Analog input ;

• 6 Circuit relay output ;

• 2 road PWM Analog output （ Additional DAC Output ）;

• Support 485 Communications 、CAN Communications 、TTL Communications ;

• Support high-speed pulse input and output ,24V Industrial power supply .

Schematic design

 

        Make your own backlight circuit diagram , The backlight control of the display needs to pay attention to the turning on of the backlight , It can be used OS Nuclear PWM Program control . secondly ,xdata The variable initialization of must be re assigned after the system initialization .

DGUS Engineering interface design

Program files

https://download.csdn.net/download/gmingxin123/85705923 

Video demo

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