8-input and 8-output single-chip effect tube control board

Contents of the VB.NET host computer source code package for the single-chip programmable field effect tube control board:
 

Data directory

1 Introduction to the functions of the 8-input and 8-output effect tube industrial control development board

1.1 Introduction to the 8-input and 8-output FET industrial control development board

1.2 Hardware connection labeling instructions

1.3 Introduction to STC12C5A60S2 Series 1T MCU

1.4 Introduction to N-channel Irf1205 field effect transistor

2 Development Board Programming Tutorial

2.1 Introduction to Keil uVision4

2.2 Build a simple project using Keil software

2.3 Download program method

3 Development Board Application Examples

3.1 Example of controlling a certain delay on and off

3.2 Random Output Control Use Case

3.5. Example of eight-way output water lamp

3.4 One-to-one input and output jog control program

3.5 One-to-one input and output self-locking control example

3.6 One-to-one input and output interlocking control example

3.7 Host computer serial port control test

3.8 Host computer 485 interface control test

3.9 Host computer 232 or 485 interface control test

3.10 Encrypted settings for power-on times memory

3.11 Power-off memory test procedure

3.12 PWM Control of DC Motor

Appendix: Schematic

1.4 Introduction to N-channel Irf1205 field effect transistor

IRFR1205 N-channel Chinese data description: MOSFET N-CH 55V 44A DPAK

1 Introduction to the functions of the 8-input and 8-output effect tube industrial control development board 1.1 Introduction to the 8-input and 8-output effect tube industrial control development board

• Size: 115mmX77mmX25MM

• Power supply: board power supply DC 6 to 40V

• Eight-way digital input optocoupler (PC817) isolation

• Octal FET output with optocoupler (PC817) isolation

• Expansion port eight io

• Input and output indication

• Crystal oscillator 11.0592Mhz

• Field effect tube (IRF1205) output can control 55V44A load
  

Function: Eight inputs can be connected to eight NPN sensors, or limit switches, start and stop switches of control equipment, etc., and can realize programming of any control equipment (imitating Siemens s7-200 switch tube type), and can control DC 12V to 55V, 107w load

1.2 Hardware connection labeling instructions

• 
  Full page annotation:
  

• 485 Connection
  

Note: RS485 is recommended to be connected by twisted pair cables, shielded twisted pair cables, and the shielding layer should be grounded. When multiple modules are hung on the bus, a hand-in-hand connection method should be used.

• 

• Connection method for collecting external dry contact switch signal

• 
  

The source program of the microcontroller is as follows:

1. /********************************************************************
   

2.                             Huicheng Technology
   

3. Function: 1 to 1 input and output self-locking control program
   

4. Chip used: AT89S52 or STC89C52
   

5. Crystal: 11.0592MHZ
   

6. Compilation environment: Keil
   

7. Author: zhangxinchunleo
   

8. [Statement] This program is for learning and reference only. Please indicate the copyright and author information when quoting!     
   

9. *************************************************************************/
   

10. /********************************************************************
    

11. Program Description:
    

12. When the IN0 port is connected to the GND port, the corresponding relay K8 is energized (i.e., COM7 is connected to CK and CB is disconnected);
    

13. When the IN1 port is connected to the GND port, the corresponding relay K7 is energized (i.e., COM6 is connected to CK and CB is disconnected);
    

14. When the IN2 port is connected to the GND port, the corresponding relay K6 is energized (i.e., COM5 is connected to CK and CB is disconnected);
    

15. When the IN3 port is connected to the GND port, the corresponding relay K5 is energized (i.e., COM4 is connected to CK and CB is disconnected);
    

16. When the IN4 port is connected to the GND port, the corresponding relay K4 is energized (i.e., COM3 is connected to CK and CB is disconnected);
    

17. When the IN5 port is connected to the GND port, the corresponding relay K3 is energized (i.e., COM2 is connected to CK and CB is disconnected);
    

18. When the IN6 port is connected to the GND port, the corresponding relay K2 is energized (i.e., COM1 is connected to CK and CB is disconnected);
    

19. When the IN7 port is connected to the GND port, the corresponding relay K1 is energized (i.e., COM0 is connected to CK and CB is disconnected);
    

20. 
    

21. *************************************************************************/
    

22. #include //library file
    

23. #define uchar unsigned char //macro definition of unsigned character type
    

24. #define uint unsigned int //macro definition of unsigned integer
    

25. /********************************************************************
    

26.                             Initial Definition
    

27. *************************************************************************/
    

28. 
    

29. /*Define eight-bit input as MCU P1 port*/
    

30. sbit IN0=P0^0;
    

31. sbit IN1=P0^1;
    

32. sbit IN2=P0^2;
    

33. sbit IN3=P0^3;
    

34. sbit IN4=P0^4;
    

35. sbit IN5=P0^5;
    

36. sbit IN6=P0^6;
    

37. sbit IN7=P0^7;
    

38. 
    

39. /*Define eight-bit output as MCU P2 port*/
    

40. sbit K1=P2^6;
    

41. sbit K2=P2^7;
    

42. sbit K3=P5^1;
    

43. sbit K4=P5^0;
    

44. sbit K5=P4^6;
    

45. sbit K6=P4^1;
    

46. sbit K7=P4^5;
    

47. sbit K8=P4^4;
    

48. 
    

49. 
    

50. /********************************************************************
    

51.                             Delay function
    

52. *************************************************************************/
    

53. void delay(uchar t)
    

54. {
    

55.   uchar i,j;
    

56.    for(i=0;i

57.    {
    

58.             for(j=13;j>0;j--);
    

59.          { ;
    

60.          }
    

61.    }
    

62. }
    

63. 
    

64. 
    

65. /********************************************************************
    

66.                             Main function
    

67. *************************************************************************/
    

68. void main()
    

69. {
    

70.    P4SW|=0x70; //Configure P4.5 as IO port
    

71. while(1)
    

72. {
    

73. if(IN0==0){delay(100);while(!IN0);K8=0;} //Relay K8 is closed
    

74. if(IN1==0){delay(100);while(!IN1);K7=0;} //Relay K7 is closed
    

75. if(IN2==0){delay(100);while(!IN2);K6=0;} //Relay K6 is closed
    

76. if(IN3==0){delay(100);while(!IN3);K5=0;} //Relay K5 is closed
    

77. if(IN4==0){delay(100);while(!IN4);K4=0;} //Relay K4 is closed
    

78. if(IN5==0){delay(100);while(!IN5);K3=0;} //Relay K3 is closed
    

79. if(IN6==0){delay(100);while(!IN6);K2=0;} //Relay K2 is closed
    

80. if(IN7==0){delay(100);while(!IN7);K1=0;} //Relay K1 is closed
    

81. }
    

82. }
    

83. /********************************************************************
    

84.                               Finish
    

85. *************************************************************************/