Development of solenoid valve control board

Development of solenoid valve control board

Product Specifications:

Features

1. Main power supply: 18V alternating current (or 24V direct current), peripheral driving power: 24/12V direct current;

2. Chip and storage space: main control chip: 8-bit high-performance single-chip microcomputer; storage space: 32K program (if there is a specific need for a chip with 64K storage space); internal data storage space: 16K (if there is a specific need, 32K storage space is available Chip), external expandable data storage space: 256K, can be used to save data, data will not be lost when power off;

3. I/O: 12 optically isolated digital inputs, NPN input form, input current is 10mA; two of them can be used as interrupt sources for counting; 8 optically isolated digital outputs, of which 4 relay outputs (can be External 220V voltage, withstand current is 5A);

4. Transistor output, open collector output form, external voltage is 24/12V, output current is 4A, output port status can be read back;

5. Support timing function: there is a system clock with a backup power supply, which can read and write time such as year, month, day, minute and second, and can be used for timing and other time operations;

6. Blue LCD screen display: LCD screen size: length * height 53mm * 14mm, can display 2 lines, 16 characters per line, each character is 8*5 dot matrix;

7. With 5 function buttons: programmable setting function parameters, convenient for users to modify parameter values;

8. Adopt photoelectric isolation and enable internal watchdog and strict high frequency filtering characteristics to make the system work stable and reliable without crashing;

9. There is a standard RS232 serial communication interface (resistant to 15KV electrostatic shock), which can directly communicate with peripherals such as computers or text displays;

10. The program can be downloaded directly through the RS232 interface without a burner, which is convenient for program modification and upgrade;

11. Two LED lights: LED1 is power indicator, LED2 is programmable;

12. Two DIP switches: can be set in the program as two parameters, such as program status or function parameters;

13. The shell adopts screw fixing or rail installation, integrated compact design, dimensions are as follows: shell size: length × width × height: 154mm × 126mm × 60mm; installation size: length × width: 145mm × 100mm;

14. Use Keil C or assembly programming, users who have difficulty in programming can send the process flow to our company, and our company can help programming.

specification

1. Working temperature: -10~+65°C;

2. Storage temperature: -20~+80°C;

3. Humidity: 5~95% without condensation;

4. Power consumption (no external equipment): +18V@ 0.5A (typical value);

use

1. It can be used in a variety of control systems within 20 points, which can control cylinders, solenoid valves, relays, stepping motors, and can be connected to various sensors such as photoelectric, capacitive, inductive, and Hall sensors;

2. It can be used to replace PLC within 20 points for various control occasions (such as various machine control);

3. It can be used for single-chip learning and testing.

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