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JMDM high accuracy industrial analog control card with 8 channels

Categories industrial controller
Place of Origin: Shenzhen, China
Brand Name: JMDM
Model Number: JMDM-GJD8AIO8DIO
Price: 1
Packaging Details: packed by thick carton
Delivery Time: within 3 days
Payment Terms: TT, Western Union
Supply Ability: 100000pcs/month
MOQ: 1 piece
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    JMDM high accuracy industrial analog control card with 8 channels

    JMDM high endhigh accuracy industrial analog control card with 8 channels


    1)JMDM-GJD8AIO8DIO(H-ACCURACY) is industrial grade high precision, high speed, multi-channel analog digital quantity input/output controller which is independent researched by Shenzhen Jingmin Digital Machine Co., Ltd; It can be used in the site with less than 8 channels control, with save data when the power is cut off and monitor online function, has lightning protection, strong electromagnetic interference resistance, stable and reliable, cost-effective, easy to use characteristic, can flexible application in various industrial automatic control site, such as industrial control equipment of various kinds of machine tools of metallurgical, chemical, plastics, printing, textile, food, packaging etc.

    2) Main control chip: 32 bits RAM(512K), ROM(20K) flask microcomputer.

    Analog-to-digital conversion chip is from AD company, high speed( up to 200KSPS) parallel port( 16 bits)

    Analog-digital chip is from AD company, four channels 16 bits SPI interface

    • Working power supply:With lightning protection circuit, working power supply:AC or DC(9V AC or 12V DC).
    • 8 channels photoelectric isolating I / 0 input and output:4 channels input, 4 channels GGNMOS output( the highest loading voltage is DC40V, can external connect relay); 8 channels analog input and output:4 channels 16 bits high speed( parallel port) analog input and 4 channels 16 bits high speed output.
    • Use high performance import industrial grade chip design, can used in high electromagnetic interference industrial environment (250A discharge welding occasion)
    • Communication interface: RS232( 15 kv static shock resistance); RS485(±15KV static shock resistance)
    • Installation: Screw or guide, integration of the compact design; Size of the shell:155*110*60mm(L*W*H); Size of the board:149*104*20mm(L*W*H)
    • Watchdog circuit and input/output full photoelectric isolation and strict high frequency filter, system is stable and reliable.
    • Can monitor online, convenient to debugging and fault diagnosis


    1. Working power supply: With lightning protection circuit, mixed output need power DC12V1A, 4 channles loading voltage can up to DC40V, can external connect relay.

    2. Indicator: 2pcs, power indicator and working indicator

    3.Input and output: 8 channels photoelectric isolation digital input, NPN; 4 channels GGNMOS output( switch times can up to millions), the max working current is 4A, max working voltage is DC40V, can external connect relay to control 220VADC, Mechanical relay life 200000 ~ 400000 times

    4. Easy to install:fixed hole installation and integration of the compact design


    Used for the control system less than 8 channels, can control the pneumatic cylinder, solenoid valves, relay, can external connect photoelectric, capacitive and inductive, hall type and various sensors

    Used to replace the foreign brands MCU within 8 channels to control the various occasions(such as all kinds of machine control), high performance.


    1) SCM:STM32F103VET6-LQPF100, core:ARM 32 bits Cortex™-M3 CPU

    Working frequency can up to72MHz,0 waiting period of memory access can up to 1.25DMips/MHz ,RAM(128K),ROM(20K) flash micro computer

    2)Analog-to-digital conversion chip is from AD company, high speed( up to 200KSPS) parallel port( 16 bits)

    Analog-digital chip is from AD company, four channels 16 bits SPI interface

    Programming instructions

    void timer_server(void);

    //Timing service function

    void input_server(void);

    //The input test handler

    void ADC_server(void);

    //ADC visa read

    void DAC_server(void);

    //DAC output processing function

    void usart1_server(void);

    //serial port 1 service function

    void usart2_server(void);

    //serial port 2 service function

    void AT24CXX_WriteLenByte(u16 WriteAddr,u32 DataToWrite,u8 Len);

    //FM24C16 storage chip write function

    u32 AT24CXX_ReadLenByte(u16 ReadAddr,u8 Len);

    //FM24C16 Storage chip read function


    //Timer initialization function, 100 corresponds to a 10 ms interrupt, 1000 corresponds to 100 ms interrupt


    //1 second watchdog setting function


    //Feed the dog once, it takes place in the main function of the while, the main loop every time to call again


    //read 4 channels ADdata


    //operate the first channel DAC output is 0

    void send_string_USART1(unsigned char *str)

    //serial port 1 send string functions

    void send_string_USART2(unsigned char *str)

    //serial port 2 send string function

    For 16 bits AD acquisition chip, ADC rang:2^16-1=65535

    Function READ_AD7806()---read 4 channels ADC data respectively to:ADC_ch[0],ADC_ch[1],ADC_[2], ADC_[3] 4 variables, the speed of the parallel port can up to 200kps;ADC character : 0---32767 is 0--10V (change the range can be changed to 0-5V),more than 32767 is negative voltage; 32788---65535 detect negative voltage.

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