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https://github.com/levshx/xy6020-esp8266-control
Monitor and control the sinilink xy6020 power module
https://github.com/levshx/xy6020-esp8266-control
Last synced: 8 days ago
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Monitor and control the sinilink xy6020 power module
- Host: GitHub
- URL: https://github.com/levshx/xy6020-esp8266-control
- Owner: levshx
- License: mit
- Created: 2024-01-15T12:51:18.000Z (10 months ago)
- Default Branch: main
- Last Pushed: 2024-01-27T21:39:46.000Z (10 months ago)
- Last Synced: 2024-01-27T22:32:07.218Z (10 months ago)
- Language: C++
- Size: 21.5 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# xy6020-esp8266-control
Monitor and control the sinilink xy6020 power module
Board:
> NodeMCU_v3
Framework:
> Arduino
## Communication Interface
The communication protocol is `MODBUS-RTU`.
Factory Modbus ID setting is `01H`
The communication interface is TTL serial port;
The data format is `8,N,1` `(8 data, no parity, one stop bit(s))`
The factory baudrate setting is `115200`
Logic high level is `3.3V`
Interface Connector:
- VCC: 5V supply
- TX: Serial data input (connect it to master’s transmitter output)
- RX: Serial data output (connect it to master’s receiver input)
- GND: Ground
## Function Codes
This machine only supports 0x03, 0x06, 0x10 function codes.
This means, all mentioned registers are ‘Holding Registers’
| Function code | Definition | Operation (binary) |
|---------------|--------------------------|----------------------------------------------------------|
| 0x03 | Read register data | Read data from one or more registers |
| 0x06 | Write a single register | Write a set of binary data to a single register |
| 0x10 | Write multiple registers | Write multiple sets of binary data to multiple registers |
## Register Set (Holding Registers)
Rem: Each register consists of 16 bits, transferred as 2 bytes.
| Name | Description | Bytes | Dec. | Unit | Read and write | Register address |
|--------|---------------------------------------------|-------|------|------|----------------|------------------|
| V-SET | Voltage setting | 2 | 2 | V | R/W | 0000/H |
| I-SET | Current setting | 2 | 2 | A | R/W | 0001/H |
| VOUT | Output voltage display value | 2 | 2 | V | R | 0002/H |
| IOUT | Output current display value | 2 | 2 | A | R | 0003/H |
| POWER | Output power display value | 2 | 1 | W | R | 0004/H |
## CRC code
An example of a C language function performing Modbus CRC16 generation.
https://www.modbustools.com/modbus_crc16.html
```c
WORD CRC16 (const BYTE *nData, WORD wLength)
{
static const WORD wCRCTable[] = {
0X0000, 0XC0C1, 0XC181, 0X0140, 0XC301, 0X03C0, 0X0280, 0XC241,
0XC601, 0X06C0, 0X0780, 0XC741, 0X0500, 0XC5C1, 0XC481, 0X0440,
0XCC01, 0X0CC0, 0X0D80, 0XCD41, 0X0F00, 0XCFC1, 0XCE81, 0X0E40,
0X0A00, 0XCAC1, 0XCB81, 0X0B40, 0XC901, 0X09C0, 0X0880, 0XC841,
0XD801, 0X18C0, 0X1980, 0XD941, 0X1B00, 0XDBC1, 0XDA81, 0X1A40,
0X1E00, 0XDEC1, 0XDF81, 0X1F40, 0XDD01, 0X1DC0, 0X1C80, 0XDC41,
0X1400, 0XD4C1, 0XD581, 0X1540, 0XD701, 0X17C0, 0X1680, 0XD641,
0XD201, 0X12C0, 0X1380, 0XD341, 0X1100, 0XD1C1, 0XD081, 0X1040,
0XF001, 0X30C0, 0X3180, 0XF141, 0X3300, 0XF3C1, 0XF281, 0X3240,
0X3600, 0XF6C1, 0XF781, 0X3740, 0XF501, 0X35C0, 0X3480, 0XF441,
0X3C00, 0XFCC1, 0XFD81, 0X3D40, 0XFF01, 0X3FC0, 0X3E80, 0XFE41,
0XFA01, 0X3AC0, 0X3B80, 0XFB41, 0X3900, 0XF9C1, 0XF881, 0X3840,
0X2800, 0XE8C1, 0XE981, 0X2940, 0XEB01, 0X2BC0, 0X2A80, 0XEA41,
0XEE01, 0X2EC0, 0X2F80, 0XEF41, 0X2D00, 0XEDC1, 0XEC81, 0X2C40,
0XE401, 0X24C0, 0X2580, 0XE541, 0X2700, 0XE7C1, 0XE681, 0X2640,
0X2200, 0XE2C1, 0XE381, 0X2340, 0XE101, 0X21C0, 0X2080, 0XE041,
0XA001, 0X60C0, 0X6180, 0XA141, 0X6300, 0XA3C1, 0XA281, 0X6240,
0X6600, 0XA6C1, 0XA781, 0X6740, 0XA501, 0X65C0, 0X6480, 0XA441,
0X6C00, 0XACC1, 0XAD81, 0X6D40, 0XAF01, 0X6FC0, 0X6E80, 0XAE41,
0XAA01, 0X6AC0, 0X6B80, 0XAB41, 0X6900, 0XA9C1, 0XA881, 0X6840,
0X7800, 0XB8C1, 0XB981, 0X7940, 0XBB01, 0X7BC0, 0X7A80, 0XBA41,
0XBE01, 0X7EC0, 0X7F80, 0XBF41, 0X7D00, 0XBDC1, 0XBC81, 0X7C40,
0XB401, 0X74C0, 0X7580, 0XB541, 0X7700, 0XB7C1, 0XB681, 0X7640,
0X7200, 0XB2C1, 0XB381, 0X7340, 0XB101, 0X71C0, 0X7080, 0XB041,
0X5000, 0X90C1, 0X9181, 0X5140, 0X9301, 0X53C0, 0X5280, 0X9241,
0X9601, 0X56C0, 0X5780, 0X9741, 0X5500, 0X95C1, 0X9481, 0X5440,
0X9C01, 0X5CC0, 0X5D80, 0X9D41, 0X5F00, 0X9FC1, 0X9E81, 0X5E40,
0X5A00, 0X9AC1, 0X9B81, 0X5B40, 0X9901, 0X59C0, 0X5880, 0X9841,
0X8801, 0X48C0, 0X4980, 0X8941, 0X4B00, 0X8BC1, 0X8A81, 0X4A40,
0X4E00, 0X8EC1, 0X8F81, 0X4F40, 0X8D01, 0X4DC0, 0X4C80, 0X8C41,
0X4400, 0X84C1, 0X8581, 0X4540, 0X8701, 0X47C0, 0X4680, 0X8641,
0X8201, 0X42C0, 0X4380, 0X8341, 0X4100, 0X81C1, 0X8081, 0X4040 };
BYTE nTemp;
WORD wCRCWord = 0xFFFF;
while (wLength--)
{
nTemp = *nData++ ^ wCRCWord;
wCRCWord >>= 8;
wCRCWord ^= wCRCTable[nTemp];
}
return wCRCWord;
}
```
## Communication example
The host reads the output voltage and output current display values
The message format sent by the host:
| Data Item | Number of bytes | Data sent | Remark |
|------------------------------|-----------------|-----------|-------------------------------------|
| Slave address | 1 | 01 | Send to slave with address 01 |
| Function code | 1 | 03 | Read register |
| Register start address | 2 | 0002/H | Register start address |
| Number of register addresses | 2 | 0002/H | 2 bytes in total |
| CRC code | 2 | 65CB/H | The CRC code calculated by the host |
For example, if the current display value is 05.00V, 1.500A, then the
Message format returned by the slave machine:
| Data Item | Number of bytes | Data sent | Remark |
|------------------------------|-----------------|-----------|-------------------------------------|
| Slave address | 1 | 01 | Received from slave with address 01 |
| Function code | 1 | 03 | Read register |
| Bytes in response | 1 | 04 | Number of data bytes in response |
| Content of register 0002/H | 2 | 01F4/H | Output voltage display value |
| Content of register 0003/H | 2 | 05DC/H | Output current display value |
| CRC code | 2 | B8F4/H | The CRC code calculated by the slave|