Serial Control LED Digital Tube Display Control System

JMDM-LEDDISP Serial port control LED digital tube display system
Introduction
1. Serial port control LED digital tube display system is Shenzhen Jingmin Digital Machine Co., Ltd. Independent research and development of a PC monitoring can be realized, LED digital tube display hardware and software products, the hardware adopt JMDM-LEDDISP, each board has 5 eight period of high brightness digital tube be used to display computer, PLC and single-chip microcomputer controller date, the digital tube display system adopts high-power logical drive chip, the static latch, flicker-free, high brightness, green and red two kinds of digital tube(19mm * 13mm) can be choose, and 4 key input
2. The main power supply standard for DC24V, are also applicable to the wide voltage input: DC9V~30V can work normally.
3. The shell adopts screw or guide installation, integration of compact design, the size is as follows: The shell size: Length x width x height is: 96mm*57mm*35mm;
4. For customers have special requirements, can use Keil C or assembly
Programming, customer use programming is difficult can send the process flow to us, we can help programming.
5. With peripheral computer or PLC or single-chip microcomputer communication has two ways: Standard RS 232 communication, two wire SPI communication.
6. Multiple digital tube display panel can through RS232 or RS485 communication network system, up to 255 digital tube display board of a large display system.
Specification
1. The working temperature: -10 ~ + 65° C;
2. Storage temperature: -20 ~ + 80° C;
3. Humidity: 5 ~ 95% without condensation;
4. Power consumption (no external equipment): +24v@ 0.2A (typical);
Application
1. Can be used in the system of serial port control digital tube display, can be used to display computer, PLC and single-chip microcomputer controller date, and the control board to recevie key information transmitted to the computer and single chip microcomputer controller.
2. Can be used as digital tube man-machine, display computer, PLC and single-chip microcomputer controller date, and the control panel to receive key information transmitted to the computer, PLC and single-chip computer controller.
Communication instructions
(1)The digital display board uses the standard serial(RS232)communication
Communication baud rate: 9600, No parity, Data bits is 8, The stop bit is 8.
1. The computer sends to the digital display controller:
1)The first digital pipe display: O (00, 1, 00) E; O is for the header, (, , ) is the communication format, E is for the communication terminator; The first number is the address of the digital pipe display controller, The second number is the number of bits of the digital display controller, the last two fingers are the digital pipe;
2) The second digital pipe display: O (00, 2, 00) E;
3) The third digital pipe display: O (00, 3, 00) E;
4) The forth digital pipe display: O (00, 4, 00) E;
5) The fifth digital pipe display: O (00, 5, 00) E;
6) Shows five numerical: OT (00, 00000) E;
7) Read the button state: OR (00) E wait for the controller back to the data.
2. Controller sends to the computer:
I(00, 000000)E The next six digital corresponding to the four buttons and two input points of the input status, and 0 is for no input, 1 for input.
3. Address setting software: OA(00)E the computers to send characters. Brackets are the address you want to set.
(2) LED display board with two-wire SPI communication
Digital format;
Start (addrH addrL, data1 data2 data3 data4 data5)
53 28 addrH addrL 2C data1 data2 data3 data4 data5 29 -------ASCII code
Start: S Start bit( 53H) sign bit(28H) sign bit: (29H) sign bit (2CH)
AddrH, addrL: Address high and address low
Data1~data5: Digital pipe display value
Send data on the rising edge.