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jumia_zuoyingmingsu
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Technical s
Operating Voltage
9-24VDC
Operating Current
≤2000mA
Operating temperature
-20℃-70℃
Output Power
15W
Audio Format
MP3 (bit rate ≤ 192Kbps)
Communication Mode
Modbus RTU serial communication protocol
On-board Memory Size
8MB (by default)
Modbus RTU Serial Communication
This product supports Modbus RTU serial communication based on RS485, and the default baud rate is 9600. Because of its binary representation and compact data structure, Modbus RTU has high communication efficiency and it is widely used in industrial occasions.
Factory default settings:
Default RS485 addre: 01
Default volume level: 30(maximum)
Default baud rate: 9600
Communication Format
Data bits: 8; Stop bits: 1; Error : CRC (Cyclic Redundancy Check)
Addr
Fun
Data start
reg hi
Data start
reg lo
Data #of regs hi
Data #of regs lo
CRC16_L
CRC16_H
01
06
00
03
00
01
B8
0A
Addre code (1 byte), function code (1 byte), start addre (2 bytes), data (2 bytes), check code (2 bytes)
Addr: addre
Fun: function code
Data start reg hi: data start addre-register high byte
Data start reg lo: data start addre-register low byte
Data #of reg hi: number of data read-register high byte
Data #of reg lo: number of data read - register low byte
CRC16_H: Cyclic redundancy check high byte
CRC16_L: Cyclic redundancy checklow byte
Format: addre code + function code + register addre (upper 8 bits) + register addre (lower 8 bits) + data (upper
8bits) + data (lower 8bits) + check code (lower 8bits) + check code (upper 8bits)
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