SC1602 Modbus Master Display Panel
Contents
1. If the data is received correctly by the LCD it will display SETTING DONE If there is error during transmission it will displays SETTING ERROR When the configuration is done properly power down the LCD and remove jumper J 4 MODBUS Command Slave Address Function Code Start Address Hi Start Address Lo No of Points Hi No of Points Lo CRC Hi CRC Lo Above is the structure of the MODBUS command transmitted by the LCD every x X 100ms Supported function code is 03 and 04 only No of points is either 1 or 2 depending on how you want the LCD to interpret the received data Supported data types are Unsigned integer 2 Bytes No of Points 1 0 to 65535 Signed integer 2 Bytes No of Points 1 32768 to 32767 4 Digits BCD 2 Bytes No of Points 1 0 to 9999 6 Digits BCD 4 Bytes No of Points 2 0 to 999999 Long Integer 4 Bytes No of Points 2 0 to 999999 Note that maximum display value is 999999 If the data received is more than 999999 the LCD will display on the data field Alarm Trip Point This value control the transistor output on J5 pin header If the data received is greater than Alarm trip point value the transistor will be turned on The transistor output schematic dia a gram and connection to a LED ex gt O ample Max sink current 200mA LED I Resistor ke www siliconcraft net 42. 14 June 2010 SC1602MBM 16x2 Characters MODBUS RTU Master LCD SILICON CRAFT Configuration Example Fa Configure SC1602MBM SC1602MBM LC Communication LOD Baud Rate LCD Data Format Polling Interval ix 100ms Display Text Text MODELS REG row Data Pt tht row 1 LCD will transmit this MODBUS command every 1 second 10 x 100 ms with 9600 8N1 data User s Manual Modbus Command Modbus Slave Address Reg Address Hi Reg Address Lo Start Register oo oO T Function Code 03 Function Code 04 Data fe Number of digits including decimal point Number of decimal place 21 Data Display Start Location Long Integer kd Data Type Alarm Trip Point 0x01 0x04 0x00 0x00 0x00 0x02 CRC Hi CRC Lo If the response from the Slave Device address is 0x01 0x04 0x04 0x00 0x01 0x03 0x23 CRC Hi CRC Lo The received data is 0x00010323 Hex or 66339 Decimal The LCD display will be like www siliconcraft net 14 June 2010 SC1602MBM 16x2 Characters MODBUS RTU Master LCD GILICONICRAFET User s Manual Mechanical Dimension millimeter pt 7500 02 oe 0 Ou H tl Ee Cc im ay mi CW 57 70 HOLE 4 2 9 64 50 0 2 PAD 4 3 5 70 70t0 2 Standard Size Version lee 115 un 106 cu Aj 99 Large Characters Version www siliconcraft net 6 14 June 2010 SC1602MBM 1
3. 6x2 Characters MODBUS RTU Master LCD SILICON CGCRAFT User s Manual Specification Power Supply min 4 5VDC max 5 5VDC 5 0VDC nominal Current Consumption 100mA typical Standard Size Version 250mA typical Large Character Version Operating Temperature O2C to 502C Connection Screw terminals accept 12 to 26 AWG Non Volatile Memory Write Cycle Min 100 000 Non Volatile Memory Data Retention Min 100 years Output Maximum sink current 200mA LCD View Angle 6 o clock Characters 16 x 2 View Area 64 5mm x 13 8mm Standard Size Version 99 mm x 24 mm Large Character Version Backlight Yellow Green or Blue LED Available Accessories Sold Separately Aluminum Front Panel Mounting Plate RS232 cable DB9 Female to P1 Header R15 100 0 www siliconcraft net 7 14 June 2010
4. SC1602MBM 16x2 Characters MODBUS RTU Master LCD SILICON CRAFT User s Manual Modbus Data lt gt Modbus Query MODBUS Slave Device R S 4 8 5 2 3 2 SC1602MBM is a Master Modbus LCD that is programmable to read and display data from any Modbus Slave device It reads up to 4 Bytes data from register 3xxxx or 4xxxx RS485 or RS232 communication option Programmable baud rate and parity bit Max display value 999 999 Programmable data types 16 bits Unsigned Integer 16 bits Signed Integer 4 Digits BCD 6 Digits BCD or 32 bits Unsigned Integer Programmable polling time 0 1 s to 25 5 s Response timeout 50ms Programmable fixed decimal point d ddddd dd dddd ddd ddd dddd dd or ddddd d Programmable fixed display text Configuration method MODBUSMasterLCD software Fixed Display Text Data field The Data Field and Text Display Area The data field is the area on the LCD where the received data will be displayed It can be configured to anywhere on the 16x2 LCD The width of the data field is also programmable Fixed text area is the text that is permanently displayed after power up It is programmable Display Option SC1602MBM YG SC1602MBM B SC1602MBM LC YG Double Character Size www siliconcraft net 1 14 June 2010 SC1602MBM 16x2 Characters MODBUS RTU Master LCD SILICON CRAFT User s Manual Connecting the LCD Configuration Jumper J4 Transistor Ou
5. on window Configure SC160 2MBM SC1602MBM LC Communication 600 LCD Baud Rate eni LCD Data Format ho Polling Interval x 100ms Display Text Text MODBUS REG row 0 Data ARAAAAA row iL Send Config Data www siliconcraft net Modbus Command Modbus Slave Address Reg Address Hi Reg Address Lo Start Register loo v foo v C Function Code 03 Function Code 04 Data le Number of digits including decimal point fi Number of decimal place 21 Data Display Start Location Long Integer X Data Type Alarm Trip Point FF ETF S Configure the LCD to transmit the modbus command Slave ID Function Code Start Register Address Hi Start Register Address Lo No of Points Hi No of Point Lo CRC Hi CRC Lo Polling interval is the frequency of which the command will be transmitted by the LCD Data Display Start Location is location on the LCD screen where the most significant digit of the received data will be displayed 0 is the top left corner 31 is the bottom right corner 14 June 2010 SC1602MBM 16x2 Characters MODBUS RTU Master LCD SILICON CRAF1 User s Manual At the text input area key in the text to be displayed is the data field area Example MAn will be 6 digits wide display area will be 5 digits wide with one decimal place After you had keyed in all the parameters click on Send Config Data
6. tput Header J5 sv gt i GND gt RS485 Port LCD Contrast Adjust RS232 Header J2 O gt TXD TTL O RXD TIL O TXD RS232 O RXD RS232 O GND O 5V SC1602MBM YG B Back RS485 Port Configuration Jumper J4 GND SV o Transistor Cut LL Output Rp Header J5 TXD RS232 lt RXD RS232 GND LCD Contrast Adjust SC1602MBM LC YG Back View www siliconcraft net 2 14 June 2010 SILICON GCRAFT Configure the LCD SC1602MBM 16x2 Characters MODBUS RTU Master LCD User s Manual Download and install MODBUSMasterLCD software from our website at www siliconcraft net download htm Select the correct COM port and module SC1602MBM Close J4 jumper and power on the LCD It should displays SETTING MODE on the first line MODBUS RTU Master LCD 9600bps 19200bps 38400 bps onli Data Format 1 Select Port Number sC1602MBM Select Module Modbus Slave Simulator Address 1 30001 0x00 Address Disabled Modbus Reg Received Bytes 0x00 20002 0x00 0x00 OxO0 Modbus Reg a ia Address Disabled Address Disabled Modbus Reg Transmitted Bytes Ils Configure LoD Modbus Reg 0x00 Ox00 FF Modbus Reg r Modbus Reg Click on the Connect button and then the Configure LCD button to bring up the configurati
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