1.Feature

1) jmctrl at msn dot cn.
The serial control LED digital tube display system for jingmin digital machine Co., Ltd. independent research and development of a host computer monitoring, LED digital tube display of hardware and software products, Hardware used JMDM-LEDDISP, each board have five of eight sect of high brightness LED used to display computer, PLC micro-controller data. The digital tube display system all using high-power logic driver chips, fully static seal, flicker-free, high brightness, With green and red digital pipe ( the size is 19mm*13mm ) to choose from, with another four keystrokes.

2)The main power supply standard is DC24V, Also applies to the wide input voltage range: DC9V~30V Can be used work normally;

3)Shell with screws or rail mounting, integrated compact design,Shell size: L * W * H: 96mm*57mm*35mm;;

4)Available for customers with special requirements can use KeilC or assembler programming, users have a difficult process just send to our company, and our company can help to programming.

5)There are two ways: the standard RS232 communications, two-wire SPI communication with the external computer or PLC or SCM communication

Multiple digitaldisplayboardcan byRS232 orRS485 communicationnetwork component system, can reach up to 255 digital display board composed of large display systems

2.Specification

Working Temperature: -10~+25℃;  Storage temperature: -20~+80℃

Humidity: 5~95% non-condensing;

Power consumption (No external device):+24 0.2A (Typical values)

3. Use

1) Can be used for serial control digital display system and used to display computer, PLC micro-controller data, and transmitted the key information received from the control panel to the computer, single-chip controller;

2) Button available to do the man-machine of the digital tube, display computers, PLC, micro-controller data and transmitted the control panel receives information to the computer, PLC, micro-controller

4. 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 withtwo-wire SPIcommunication

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.

5. Ordering Information

1\Ordered JMDM-LEDDISP controller including:

Controller, serial download line, CD (including programming software, Teaching material, Application example, Operation manual), instructions.

Delivery way: Express delivery