Table of Contents
lamaPLC: DM56A04 / DM36B06 digital tube display with Modbus Communication
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Description
- Working voltage: DC 5 - 28V
- Working current: 4.3 - 42mA (related to the brightness of the digital tube)
- MODBUS RTU protocol, 03 read command, 06 or 16 write command.
- Device address: 1~247, default 1, by modifying the 485 address, up to 247 modules can be used in cascade (more than 32, please use RS485 repeater)
- Digital tube color: red
- Digital tube tube digits: 6 digits 0.36 inches / 4 digits 0.56 inches
- Communication interface: RS-485 (Modbus RTU)
- Function: It can display numbers, ASCII characters, letters, floating-point numbers, negative numbers, etc., and the brightness can be adjusted; it supports electronic label function, and the initial display content can be set after power-on
- Supported baud rates: 1200 2400 4800 9600 (default) 19200 38400 57600 115200,
Character-set
Modbus Features
Modbus connection characteristics:
Default Modbus settings: 9600 baud, 8N1, RTU communication, slave ID: 1
Function Code: 06/16 control, 03 read status
| Address | Function | R/W |
|---|---|---|
| 0 | ASCII code The 1st digit tube displays the contents | R/W |
| 1 | ASCII code The 2nd digit tube displays the contents | R/W |
| 2 | ASCII code The 3st digit tube displays the contents | R/W |
| 3 | ASCII code The 4st digit tube displays the contents | R/W |
| 4 | ASCII code The 5st digit tube displays the contents | R/W |
| 5 | ASCII code The 6st digit tube displays the contents | R/W |
| 6 | Used in combination with register 7 (0xFFFFFFFF), cannot be used alone. High 4 bits of the high byte (0xFFFFFFFF): 0 indicates a positive number, 1 indicates a negative number Lower 4 bits of the high byte (0xFFFFFFFF): specify the number of decimal places, ranging from 0 to 5 Together with register 7, they specify the data to be displayed 0xFFFFFFFF) (for data above 65535, three bytes are needed; this byte indicates the highest 8 bits of the data. Note: This register should be used together with register 7. To write data to these two registers, use the write multiple holding register (16 function code) when displaying data. | R/W |
| 7 | Display data. Can be used in combination with register 6 (0xFFFFFFFF), or separately. (1) Together with register 6, this register indicates the data to be displayed (the data is represented by 3 bytes, 0xFFFFFFFF), the high byte of this register indicates the middle 8 bits of the data (0xFFFFFF), and the low byte indicates the lowest 8 bits of the data (0xFFFFFF). The high byte comes first and the low byte comes second. (0xFFFF) Note: This register is used in conjunction with register 6 to write data to these two registers using the Write Multiple Holding Register (16 function code) when displaying data. (2) When used independently, write a hexadecimal number into the register, and the digital tube will be converted into a decimal number for display. | R/W |
| 8 | Blink control register. Each bit represents one digital tube; the lowest bit represents the first digital tube, and so on. 0: no blinking (default), 1: Blinking Note: This parameter is not saved when power is lost. | R/W |
| 9 | Digital tube brightness level, 1..8, 6 digits default 4, 4 digits default 8. Note: This parameter is saved upon powering down. | R/W |
| 10 | Display content is saved. 0: No saving (default), 1: Save all digital tube display content Note: this parameter is saved when powered off. | R/W |
| 11 | Digital tube power-on initial display mode setting. 0: Display “0”; (default), 1: Display the RS485 address of the module, 2: Display of saved data. Note: This parameter is saved at power down. | R/W |
| 251 | 00: Restore factory settings Telegram: FF 06 00 FB 00 00 ED E5 | R/W |
| 252 | Data return delay: 0..25 (* 40 ms); Return data interval time after receiving the command (unit 40 ms) | R/W |
| 253 | RS485 Address / Slave Address: 1..247, default: 1 | R/W |
| 254 | Baud rate: 0..255; 0:1200, 1:2400 2:4800, 3:9600（default), 4:19200, 5：38400, 6：57600, 7：115200, Other: Restore factory settings | R/W |
| 255 | Parity bit: 0..2; 0 :None(default), 1: Even Parity, 2: Odd Parity | R/W |
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