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solaxd.c
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solaxd.c
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/*
Daemon for communication with SolaX-X1_Mini inverter via RS485
Copyright (C) 2020 - Jens Jordan
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*********************************************************************************************/
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include <time.h>
#include <fcntl.h>
#include <termios.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
/*** Defines ********************************************************************************************/
#define SOLARXD_STRING "SolaXd"
#define VERSION_STRING "Version 0.2.0 (07-Jan-2021)"
#define DEFAULT_TTY_DEVICE_NAME "/dev/ttyUSB0" // serial device
#define DEFAULT_TCP_PORT 6789 // http-server port
#define DEFAULT_AVERAGE_SAMPLES 10 // interval use for average calculation (in seconds)
#define DEFAULT_INVERTER_ADDRESS 0x0A // must be unique in case of more inverters in the same RS485 bus
#define DEFAULT_LOG_FILE NULL // stderr is used if NULL
#define DEFAULT_LOG_LEVEL LOG_TRACE // support for different log levels
#define DEFAULT_TEST_MODE 0 // enabled / disabled of test & debug code
#define QUALITY_OF_SERVICE_COUNT 100 // QoS interval (in seconds)
#define TIMEOUT_INVERTER_ONLINE 30 // in seconds
#define MAX_INDEX_OF_LIVE_DATA (QUALITY_OF_SERVICE_COUNT - 1)
/*** Macros ********************************************************************************************/
#define lowByte(i) ( (uint8_t) i )
#define highByte(i) ( (uint8_t) ( ((int) i) >> 8) )
#define ERROR_MESSAGE(...) if (arg_LogLevel >= LOG_ERROR ) { log_Message(LOG_ERROR, fp_log_file, __VA_ARGS__); }
#define NOTICE_MESSAGE(...) if (arg_LogLevel >= LOG_NOTICE) { log_Message(LOG_NOTICE, fp_log_file, __VA_ARGS__); }
#define INFO_MESSAGE(...) if (arg_LogLevel >= LOG_INFO ) { log_Message(LOG_INFO, fp_log_file, __VA_ARGS__); }
#define DEBUG_MESSAGE(...) if (arg_LogLevel >= LOG_DEBUG ) { log_Message(LOG_DEBUG, fp_log_file, __VA_ARGS__); }
#define TRACE_MESSAGE(...) if (arg_LogLevel >= LOG_TRACE ) { log_Message(LOG_TRACE, fp_log_file, __VA_ARGS__); }
#define LOG_USE_COLOR // If the library is compiled with `-DLOG_USE_COLOR` ANSI color escape codes will be used when printing.
/*** Typedefs ******************************************************************************************/
typedef enum
{
LOG_ERROR = 0,
LOG_NOTICE,
LOG_INFO,
LOG_DEBUG,
LOG_TRACE
} logLevel_t;
typedef enum
{
STATE_BROARDCAST,
STATE_INVERTER_ADDRESS,
STATE_QUERY_LIVE_DATA
} Solax_StateQuery_t;
typedef enum
{
ERR_NONE = 0,
ERR_NO_DATA,
ERR_INVALID_MSG,
ERR_CRC_ERROR
} Solax_ErrorQuery_t;
typedef struct
{
uint8_t Header[2];
uint8_t Source[2];
uint8_t Destination[2];
uint8_t ControlCode;
uint8_t FunctionCode;
uint8_t DataLength;
uint8_t Data[100];
} Solax_Message_t;
typedef struct
{
bool valid;
float Temperature;
float Energy_Today;
float DC1_Voltage;
float DC2_Voltage;
float DC1_Current;
float DC2_Current;
float AC_Current;
float AC_Voltage;
float Frequency;
float Power;
float Energy_Total;
float Runtime_Total;
uint8_t Status;
uint32_t ErrorBits;
} Solax_LiveData_t;
/*** Static Data ******************************************************************************************/
static char* arg_TTY_Device = DEFAULT_TTY_DEVICE_NAME;
static int arg_TCP_Port = DEFAULT_TCP_PORT;
static int arg_AV_Samples = DEFAULT_AVERAGE_SAMPLES;
static int arg_InverterAddr = DEFAULT_INVERTER_ADDRESS;
static char* arg_LogFile = DEFAULT_LOG_FILE;
static logLevel_t arg_LogLevel = DEFAULT_LOG_LEVEL;
static int arg_TestMode = DEFAULT_TEST_MODE;
static int fd_tty = -1; /* File descriptor for serial interface */
static int fd_sock_server = -1; /* File descriptor for network socket */
static FILE* fp_log_file = NULL; /* File pointer for Log-File */
static uint8_t solax_InverterSerialNumber[15] = "";
static bool solax_InverterOnline = false;
static float solax_QualityOfService = 0;
static Solax_LiveData_t solax_LiveData = {0};
/*** Functions ******************************************************************************************/
void getDateTime(char dateTimeStr[])
{
struct timespec timeNow;
struct tm* infoTimeNow;
int miliSec;
clock_gettime(CLOCK_REALTIME, &timeNow);
infoTimeNow = localtime(&timeNow.tv_sec);
miliSec = timeNow.tv_nsec / 1e6;
// build time string: "yyyy-MM-DD hh:mm:ss.sss\0" (len = 24)
strftime(dateTimeStr, 20, "%Y-%m-%d %H:%M:%S", infoTimeNow);
sprintf(&dateTimeStr[19], ".%03d", miliSec);
}
void log_Message(int level, FILE* fp, const char fmt[], ...)
{
va_list args;
char dateTime[24];
static const char *level_names[] = {"ERROR", "NOTE ", "INFO ", "DEBUG", "TRACE"};
#ifdef LOG_USE_COLOR
static const char *level_colors[] = {"\x1b[31m", "\x1b[32m", "\x1b[33m", "\x1b[36m", "\x1b[94m"};
#endif
if (level > 4) return;
if ((level == LOG_ERROR) && (fp != stderr))
{
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
fprintf(stderr, "\n");
}
getDateTime(dateTime);
#ifdef LOG_USE_COLOR
fprintf(fp, "%s %s[%s]\x1b[0m ", dateTime, level_colors[level], level_names[level]);
#else
fprintf(fp, "%s [%s] ", dateTime, level_names[level]);
#endif
va_start(args, fmt);
vfprintf(fp, fmt, args);
va_end(args);
fprintf(fp, "\n");
fflush(fp);
}
int log_Bin2Hex(char buff[], const uint8_t data[], const uint8_t dataLen)
{
int x, i;
int len = 0;
if (dataLen)
{
for (i=0; i < dataLen; i++)
{
if ((i % 8) == 0)
{
len += sprintf(&buff[len], " ");
}
x = data[i];
len += sprintf(&buff[len], "%02X ", x);
}
}
else
{
len = sprintf(buff, " No Data");
}
return len;
}
uint16_t solax_CalculateCRC(const uint8_t data[], const uint8_t dataLen)
{
uint8_t i;
uint16_t chkSum = 0;
for (i = 0; i <= dataLen; i++)
{
chkSum = chkSum + data[i];
}
return chkSum;
}
Solax_ErrorQuery_t solax_RS485_Send(Solax_Message_t* txMessage)
{
int txLen;
uint8_t msgLen;
uint16_t crc;
txMessage->Header[0] = 0xAA;
txMessage->Header[1] = 0x55;
msgLen = txMessage->DataLength + 9;
crc = solax_CalculateCRC((const uint8_t*)txMessage, msgLen - 1); // calculate out crc bytes
txMessage->Data[txMessage->DataLength + 0] = highByte(crc);
txMessage->Data[txMessage->DataLength + 1] = lowByte(crc);
msgLen += 2;
txLen = write(fd_tty, txMessage, msgLen);
//tcdrain(fd_tty); /* delay for output */ // ??????????
if (txLen != msgLen)
{
ERROR_MESSAGE("ComTx: Error transmitting data: %s", strerror(errno));
return -1;
}
if (arg_LogLevel >= LOG_TRACE)
{
char buff[(3 * sizeof(Solax_Message_t)) + (sizeof(Solax_Message_t) / 8) + 3];
log_Bin2Hex(buff, (const uint8_t*)txMessage, msgLen);
TRACE_MESSAGE("ComTx:%s", buff);
}
return ERR_NONE;
}
Solax_ErrorQuery_t solax_RS485_Receive(Solax_Message_t* rxMessage)
{
int rxLen; // read length
uint8_t msgLen;
uint16_t crc;
rxLen = read(fd_tty, rxMessage, sizeof(Solax_Message_t));
// Test-Mode: Simulation of inverter data
if (arg_TestMode)
{
static int x = 0;
static const uint8_t rx_msg_1[] = {0xAA, 0x55, 0x00, 0xFF, 0x01, 0x00, 0x10, 0x80, 0x0E, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x37, 0x36, 0x35, 0x34, 0x33, 0x32, 0x31, 0x05, 0x75};
static const uint8_t rx_msg_2[] = {0xAA, 0x55, 0x00, 0x0A, 0x00, 0x00, 0x10, 0x81, 0x01, 0x06, 0x01, 0xA1};
static const uint8_t rx_msg_3[] = {0xAA, 0x55, 0x00, 0x0A, 0x01, 0x00, 0x11, 0x82, 0x32, 0x00, 0x0B, 0x00, 0x01, 0x06, 0xDD, 0x00, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x15, 0x09, 0x21, 0x13, 0x87, 0x01, 0xE7, 0xFF, 0xFF, 0x00, 0x00, 0x12, 0xD3, 0x00, 0x00, 0x0A, 0x0F, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x9C};
static const uint8_t rx_msg_4[] = {0xAA, 0x55, 0x00, 0x0A, 0x01, 0x00, 0x11, 0x82, 0x32, 0x00, 0x0B, 0x00, 0x01, 0x06, 0xCB, 0x00, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0x14, 0x09, 0x22, 0x13, 0x89, 0x01, 0xD7, 0xFF, 0xFF, 0x00, 0x00, 0x12, 0xD3, 0x00, 0x00, 0x0A, 0x0F, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x7B};
if (x == 1) {rxLen = sizeof(rx_msg_1); memcpy(rxMessage, rx_msg_1, rxLen);}
if (x == 2) {rxLen = sizeof(rx_msg_2); memcpy(rxMessage, rx_msg_2, rxLen);}
if (x == 3) {rxLen = sizeof(rx_msg_3); memcpy(rxMessage, rx_msg_3, rxLen);}
if (x == 4) {rxLen = sizeof(rx_msg_4); memcpy(rxMessage, rx_msg_4, rxLen);}
x++; if (x > 4) {x = 3;}
}
if (rxLen < 0)
{
ERROR_MESSAGE("ComRx: Error receiving data: %s", strerror(errno));
return -1;
}
if (arg_LogLevel >= LOG_TRACE)
{
char buff[(3 * sizeof(Solax_Message_t)) + (sizeof(Solax_Message_t) / 8) + 3];
log_Bin2Hex(buff, (const uint8_t*)rxMessage, rxLen);
TRACE_MESSAGE("ComRx:%s", buff);
}
if (rxLen == 0)
{
return ERR_NO_DATA;
}
if ((rxLen < 11) || (rxMessage->Header[0] != 0xAA) || (rxMessage->Header[1] != 0x55))
{
TRACE_MESSAGE("ComRx: Header fail");
return ERR_INVALID_MSG;
}
msgLen = rxMessage->DataLength + 9;
if ((msgLen + 2) > rxLen)
{
TRACE_MESSAGE("ComRx: Length fail");
return ERR_INVALID_MSG;
}
crc = solax_CalculateCRC((const uint8_t*)rxMessage, msgLen - 1); // calculate out crc bytes
// check calc crc with received crc
if (rxMessage->Data[rxMessage->DataLength + 0] != highByte(crc) ||
rxMessage->Data[rxMessage->DataLength + 1] != lowByte(crc))
{
return ERR_CRC_ERROR;
}
return ERR_NONE;
}
Solax_ErrorQuery_t solax_Send_Broardcast()
{
static Solax_Message_t txMessage;
txMessage.Source[0] = 0x01;
txMessage.Source[1] = 0x00;
txMessage.Destination[0] = 0x00;
txMessage.Destination[1] = 0x00;
txMessage.ControlCode = 0x10;
txMessage.FunctionCode = 0x00;
txMessage.DataLength = 0x00;
return solax_RS485_Send(&txMessage);
}
Solax_ErrorQuery_t solax_Send_InverterAddress()
{
static Solax_Message_t txMessage;
txMessage.Source[0] = 0x00;
txMessage.Source[1] = 0x00;
txMessage.Destination[0] = 0x00;
txMessage.Destination[1] = 0x00;
txMessage.ControlCode = 0x10;
txMessage.FunctionCode = 0x01;
txMessage.DataLength = 0x0F;
memcpy(txMessage.Data, solax_InverterSerialNumber, 14);
txMessage.Data[14] = arg_InverterAddr;
return solax_RS485_Send(&txMessage);
}
Solax_ErrorQuery_t solax_Send_QueryLiveData()
{
static Solax_Message_t txMessage;
txMessage.Source[0] = 0x01;
txMessage.Source[1] = 0x00;
txMessage.Destination[0] = 0x00;
txMessage.Destination[1] = arg_InverterAddr;
txMessage.ControlCode = 0x11;
txMessage.FunctionCode = 0x02;
txMessage.DataLength = 0x00;
return solax_RS485_Send(&txMessage);
}
Solax_ErrorQuery_t solax_SendQuery(const Solax_StateQuery_t stateQuery)
{
Solax_ErrorQuery_t error;
switch (stateQuery)
{
case STATE_BROARDCAST:
{
error = solax_Send_Broardcast();
break;
}
case STATE_INVERTER_ADDRESS:
{
error = solax_Send_InverterAddress();
break;
}
case STATE_QUERY_LIVE_DATA:
{
error = solax_Send_QueryLiveData();
break;
}
}
return error;
}
Solax_ErrorQuery_t solax_ReceiveQuery(const Solax_StateQuery_t stateQuery, Solax_LiveData_t* liveData)
{
static Solax_Message_t rxMessage;
uint32_t value;
Solax_ErrorQuery_t error;
error = solax_RS485_Receive(&rxMessage);
if (error == -1) return -1;
*liveData = (Solax_LiveData_t) {0};
switch (stateQuery)
{
case STATE_BROARDCAST:
{
if (error == ERR_NO_DATA)
{
// Maybe the Solax-X1 inverter is offline (e.g. no sunlight);
DEBUG_MESSAGE("Solax: No broadcast response");
}
else if (error == ERR_CRC_ERROR)
{
DEBUG_MESSAGE("Solax: Broadcast response CRC error");
}
else if ((error == ERR_INVALID_MSG) || (rxMessage.ControlCode != 0x10) || (rxMessage.FunctionCode != 0x80))
{
DEBUG_MESSAGE("Solax: Invalid broadcast response message");
}
else
{
// Serial number from query response
memcpy(solax_InverterSerialNumber, rxMessage.Data, 14);
solax_InverterSerialNumber[14] = '\0';
DEBUG_MESSAGE("Solax: Serial number: %s", solax_InverterSerialNumber);
}
break;
}
case STATE_INVERTER_ADDRESS:
{
if (error == ERR_NO_DATA)
{
DEBUG_MESSAGE("Solax: No address confirmation response");
}
else if (error == ERR_CRC_ERROR)
{
DEBUG_MESSAGE("Solax: Address confirmation response CRC error");
}
else if ((error == ERR_INVALID_MSG) || (rxMessage.ControlCode != 0x10) || (rxMessage.FunctionCode != 0x81) || (rxMessage.Data[0] != 0x06))
{
DEBUG_MESSAGE("Solax: Invalid address confirmation message");
}
else
{
DEBUG_MESSAGE("Solax: Inverter Bus-Address 0x%02X confirmed", arg_InverterAddr);
}
break;
}
case STATE_QUERY_LIVE_DATA:
{
if (error == ERR_NO_DATA)
{
DEBUG_MESSAGE("Solax: No live data response");
}
else if (error == ERR_CRC_ERROR)
{
DEBUG_MESSAGE("Solax: Data response CRC error");
}
else if ((error == ERR_INVALID_MSG) || (rxMessage.ControlCode != 0x11) || (rxMessage.FunctionCode != 0x82))
{
DEBUG_MESSAGE("Solax: Invalid live data message");
}
else
{
value = (rxMessage.Data[0] << 8) | rxMessage.Data[1]; // Temperature [°C]
liveData->Temperature = value;
DEBUG_MESSAGE("Solax: LiveData.Temperature: %.0f C", liveData->Temperature);
value = (rxMessage.Data[2] << 8) | rxMessage.Data[3]; // Energy Today [kWh]
liveData->Energy_Today = value * 0.1f;
DEBUG_MESSAGE("Solax: LiveData.Energy_Today: %.1f kWh", liveData->Energy_Today);
value = (rxMessage.Data[4] << 8) | rxMessage.Data[5]; // PV1 Voltage [V]
liveData->DC1_Voltage = value * 0.1f;
DEBUG_MESSAGE("Solax: LiveData.DC1_Voltage: %.1f V", liveData->DC1_Voltage);
value = (rxMessage.Data[6] << 8) | rxMessage.Data[7]; // PV2 Voltage [V]
liveData->DC2_Voltage = value * 0.1f;
DEBUG_MESSAGE("Solax: LiveData.DC2_Voltage: %.1f V", liveData->DC2_Voltage);
value = (rxMessage.Data[8] << 8) | rxMessage.Data[9]; // PV1 Current [A]
liveData->DC1_Current = value * 0.1f;
DEBUG_MESSAGE("Solax: LiveData.DC1_Current: %.1f A", liveData->DC1_Current);
value = (rxMessage.Data[10] << 8) | rxMessage.Data[11]; // PV2 Current [A]
liveData->DC2_Current = value * 0.1f;
DEBUG_MESSAGE("Solax: LiveData.DC2_Current: %.1f A", liveData->DC2_Current);
value = (rxMessage.Data[12] << 8) | rxMessage.Data[13]; // AC Current [A]
liveData->AC_Current = value * 0.1f;
DEBUG_MESSAGE("Solax: LiveData.AC_Current: %.1f A", liveData->AC_Current);
value = (rxMessage.Data[14] << 8) | rxMessage.Data[15]; // AC Voltage [V]
liveData->AC_Voltage = value * 0.1f;
DEBUG_MESSAGE("Solax: LiveData.AC_Voltage: %.1f V", liveData->AC_Voltage);
value = (rxMessage.Data[16] << 8) | rxMessage.Data[17]; // AC Frequency [Hz]
liveData->Frequency = value * 0.01f;
DEBUG_MESSAGE("Solax: LiveData.Frequency: %.2f Hz", liveData->Frequency);
value = (rxMessage.Data[18] << 8) | rxMessage.Data[19]; // AC Power [W]
liveData->Power = value;
DEBUG_MESSAGE("Solax: LiveData.Power: %.0f W", liveData->Power);
//value = (rxMessage.Data[20] << 8) | rxMessage.Data[21]; // Not Used
value = (rxMessage.Data[22] << 24) | (rxMessage.Data[23] << 16) | (rxMessage.Data[24] << 8) | rxMessage.Data[25]; // Energy Total [kWh]
if (value) {liveData->Energy_Total = value * 0.1f;}
DEBUG_MESSAGE("Solax: LiveData.Energy_Total: %.1f kWh", liveData->Energy_Total);
value = (rxMessage.Data[26] << 24) | (rxMessage.Data[27] << 16) | (rxMessage.Data[28] << 8) | rxMessage.Data[29]; // Work Time Total [hour]
if (value) {liveData->Runtime_Total = value;}
DEBUG_MESSAGE("Solax: LiveData.Runtime_Total: %.0f h", liveData->Runtime_Total);
value = (rxMessage.Data[30] << 8) | rxMessage.Data[31]; // Work mode [???]
liveData->Status = (uint8_t)value;
DEBUG_MESSAGE("Solax: LiveData.Status: %d", liveData->Status);
//value = (rxMessage.Data[32] << 8) | rxMessage.Data[33]; // Grid voltage fault in 0.1V
//value = (rxMessage.Data[34] << 8) | rxMessage.Data[35]; // Gird frequency fault in 0.01Hz
//value = (rxMessage.Data[36] << 8) | rxMessage.Data[37]; // DC injection fault in 1mA
//value = (rxMessage.Data[38] << 8) | rxMessage.Data[39]; // Temperature fault in °C
//value = (rxMessage.Data[40] << 8) | rxMessage.Data[41]; // Pv1 voltage fault in 0.1V
//value = (rxMessage.Data[42] << 8) | rxMessage.Data[43]; // Pv2 voltage fault in 0.1V
//value = (rxMessage.Data[44] << 8) | rxMessage.Data[45]; // GFC fault
value = (rxMessage.Data[49] << 24) | (rxMessage.Data[48] << 16) | (rxMessage.Data[47] << 8) | rxMessage.Data[46]; // Error Code
liveData->ErrorBits = (uint32_t)value;
DEBUG_MESSAGE("Solax: LiveData.ErrorBits: 0x%08X", liveData->ErrorBits);
liveData->valid = true;
}
break;
}
}
return error;
}
/* --- State Machine Communication with Solax-X1_Mini --- */
int solax_QueryHandle(Solax_LiveData_t* liveData)
{
static Solax_StateQuery_t stateQuery = STATE_QUERY_LIVE_DATA;
static int timeoutInverterOnline = TIMEOUT_INVERTER_ONLINE;
static int countError = 0;
Solax_ErrorQuery_t errorRx;
Solax_ErrorQuery_t errorTx;
errorRx = solax_ReceiveQuery(stateQuery, liveData);
if (errorRx == -1) return -1;
switch (stateQuery)
{
case STATE_BROARDCAST:
{
if (errorRx)
{
countError++;
if (countError >= 10)
{
countError = 0;
stateQuery = STATE_QUERY_LIVE_DATA;
}
}
else
{
countError = 0;
stateQuery = STATE_INVERTER_ADDRESS;
}
break;
}
case STATE_INVERTER_ADDRESS:
{
if (errorRx)
{
countError++;
if (countError >= 3)
{
countError = 0;
stateQuery = STATE_BROARDCAST;
}
}
else
{
countError = 0;
stateQuery = STATE_QUERY_LIVE_DATA;
}
break;
}
case STATE_QUERY_LIVE_DATA:
{
if (errorRx)
{
countError++;
if (countError >= 3)
{
countError = 0;
stateQuery = STATE_BROARDCAST;
}
}
else
{
timeoutInverterOnline = 0;
}
break;
}
}
if (solax_InverterOnline == true)
{
timeoutInverterOnline++;
if (timeoutInverterOnline >= TIMEOUT_INVERTER_ONLINE)
{
solax_InverterOnline = false;
NOTICE_MESSAGE("Solax: Inverter offline");
}
}
else // (solax_InverterOnline == false)
{
if (timeoutInverterOnline == 0)
{
solax_InverterOnline = true;
NOTICE_MESSAGE("Solax: Live data received");
}
}
errorTx = solax_SendQuery(stateQuery);
if (errorTx == -1) return -1;
return errorRx;
}
void solax_LiveData_Average(const Solax_LiveData_t* liveData, uint8_t idx, uint8_t max_idx)
{
uint8_t i, cnt = 0, qos = 0;
solax_LiveData = (Solax_LiveData_t) {0};
for (i = 0; i <= arg_AV_Samples; i++)
{
if (liveData[idx].valid != true) continue;
solax_LiveData.Temperature += liveData[idx].Temperature;
solax_LiveData.DC1_Voltage += liveData[idx].DC1_Voltage;
solax_LiveData.DC2_Voltage += liveData[idx].DC2_Voltage;
solax_LiveData.DC1_Current += liveData[idx].DC1_Current;
solax_LiveData.DC2_Current += liveData[idx].DC2_Current;
solax_LiveData.AC_Current += liveData[idx].AC_Current;
solax_LiveData.AC_Voltage += liveData[idx].AC_Voltage;
solax_LiveData.Frequency += liveData[idx].Frequency;
solax_LiveData.Power += liveData[idx].Power;
solax_LiveData.ErrorBits |= liveData[idx].ErrorBits;
if (solax_LiveData.Energy_Today < liveData[idx].Energy_Today ) solax_LiveData.Energy_Today = liveData[idx].Energy_Today;
if (solax_LiveData.Energy_Total < liveData[idx].Energy_Total ) solax_LiveData.Energy_Total = liveData[idx].Energy_Total;
if (solax_LiveData.Runtime_Total < liveData[idx].Runtime_Total) solax_LiveData.Runtime_Total = liveData[idx].Runtime_Total;
if (solax_LiveData.Status < liveData[idx].Status ) solax_LiveData.Status = liveData[idx].Status;
if (idx)
{
idx--;
}
else
{
idx = max_idx;
}
cnt++;
}
if (cnt)
{
solax_LiveData.Temperature /= cnt;
solax_LiveData.DC1_Voltage /= cnt;
solax_LiveData.DC2_Voltage /= cnt;
solax_LiveData.DC1_Current /= cnt;
solax_LiveData.DC2_Current /= cnt;
solax_LiveData.AC_Current /= cnt;
solax_LiveData.AC_Voltage /= cnt;
solax_LiveData.Frequency /= cnt;
solax_LiveData.Power /= cnt;
}
for (idx = 0; idx <= max_idx; idx++)
{
qos += liveData[idx].valid;
}
solax_QualityOfService = (float)qos / (max_idx + 1);
/*
INFO_MESSAGE("TEST: solax_LiveData.QualityOfService: %.2f", solax_QualityOfService);
INFO_MESSAGE("TEST: solax_LiveData.Temperature: %.0f C", solax_LiveData.Temperature);
INFO_MESSAGE("TEST: solax_LiveData.DC1_Voltage: %.1f V", solax_LiveData.DC1_Voltage);
INFO_MESSAGE("TEST: solax_LiveData.DC2_Voltage: %.1f V", solax_LiveData.DC2_Voltage);
INFO_MESSAGE("TEST: solax_LiveData.DC1_Current: %.1f A", solax_LiveData.DC1_Current);
INFO_MESSAGE("TEST: solax_LiveData.DC2_Current: %.1f A", solax_LiveData.DC2_Current);
INFO_MESSAGE("TEST: solax_LiveData.AC_Current: %.1f A", solax_LiveData.AC_Current);
INFO_MESSAGE("TEST: solax_LiveData.AC_Voltage: %.1f V", solax_LiveData.AC_Voltage);
INFO_MESSAGE("TEST: solax_LiveData.Frequency: %.2f Hz", solax_LiveData.Frequency);
INFO_MESSAGE("TEST: solax_LiveData.Power: %.0f W", solax_LiveData.Power);
INFO_MESSAGE("TEST: solax_LiveData.Energy_Today: %.1f kWh", solax_LiveData.Energy_Today);
INFO_MESSAGE("TEST: solax_LiveData.Energy_Total: %.1f kWh", solax_LiveData.Energy_Total);
INFO_MESSAGE("TEST: solax_LiveData.Runtime_Total: %.0f h", solax_LiveData.Runtime_Total);
INFO_MESSAGE("TEST: solax_LiveData.Status: %d", solax_LiveData.Status);
INFO_MESSAGE("TEST: solax_LiveData.ErrorBits: 0x%08X", solax_LiveData.ErrorBits);
INFO_MESSAGE("TEST: Counter: %d", cnt);
*/
}
int solax_JsonPath(char buffer[], Solax_LiveData_t* liveData)
{
static const char* solax_ErrorText[32] =
{
"Tz Protection Fault", // Byte 0.0
"Mains Lost Fault", // Byte 0.1
"Grid Voltage Fault", // Byte 0.2
"Grid Frequency Fault", // Byte 0.3
"PLL Lost Fault", // Byte 0.4
"Bus Voltage Fault", // Byte 0.5
"Error Bit 06", // Byte 0.6
"Oscillator Fault", // Byte 0.7
"DCI OCP Fault", // Byte 1.0
"Residual Current Fault", // Byte 1.1
"PV Voltage Fault", // Byte 1.2
"Ac10Mins Voltage Fault", // Byte 1.3
"Isolation Fault", // Byte 1.4
"Over Temperature Fault", // Byte 1.5
"Ventilator Fault", // Byte 1.6
"Error Bit 15", // Byte 1.7
"SPI Communication Fault", // Byte 2.0
"SCI Communication Fault", // Byte 2.1
"Error Bit 18", // Byte 2.2
"Input Configuration Fault", // Byte 2.3
"EEPROM Fault", // Byte 2.4
"Relay Fault", // Byte 2.5
"Sample Consistence Fault", // Byte 2.6
"Residual-Current Device Fault", // Byte 2.7
"Error Bit 24", // Byte 3.0
"Error Bit 25", // Byte 3.1
"Error Bit 26", // Byte 3.2
"Error Bit 27", // Byte 3.3
"Error Bit 28", // Byte 3.4
"DCI Device Fault", // Byte 3.5
"Other Device Fault", // Byte 3.6
"Error Bit 31", // Byte 3.7
};
INFO_MESSAGE("JsonP: Inverter.Address: %d", arg_InverterAddr);
INFO_MESSAGE("JsonP: Inverter.Online: %d", solax_InverterOnline);
INFO_MESSAGE("JsonP: Inverter.QualityOfService: %.2f", solax_QualityOfService);
INFO_MESSAGE("JsonP: LiveData.DC1_Voltage: %.1f V", liveData->DC1_Voltage);
INFO_MESSAGE("JsonP: LiveData.DC2_Voltage: %.1f V", liveData->DC2_Voltage);
INFO_MESSAGE("JsonP: LiveData.DC1_Current: %.1f A", liveData->DC1_Current);
INFO_MESSAGE("JsonP: LiveData.DC2_Current: %.1f A", liveData->DC2_Current);
INFO_MESSAGE("JsonP: LiveData.AC_Current: %.1f A", liveData->AC_Current);
INFO_MESSAGE("JsonP: LiveData.AC_Voltage: %.1f V", liveData->AC_Voltage);
INFO_MESSAGE("JsonP: LiveData.Frequency: %.2f Hz", liveData->Frequency);
INFO_MESSAGE("JsonP: LiveData.Power: %.0f W", liveData->Power);
INFO_MESSAGE("JsonP: LiveData.Energy_Today: %.1f kWh", liveData->Energy_Today);
INFO_MESSAGE("JsonP: LiveData.Energy_Total: %.1f kWh", liveData->Energy_Total);
INFO_MESSAGE("JsonP: LiveData.Runtime_Total: %.0f h", liveData->Runtime_Total);
INFO_MESSAGE("JsonP: LiveData.Status: %d", liveData->Status);
INFO_MESSAGE("JsonP: LiveData.ErrorBits: 0x%08X", liveData->ErrorBits);
int len = 0;
len += sprintf(&buffer[len], "{\r\n"); //
len += sprintf(&buffer[len], " \"inverter\":\r\n"); //
len += sprintf(&buffer[len], " {\r\n"); //
len += sprintf(&buffer[len], " \"address\": %d,\r\n", arg_InverterAddr); //
len += sprintf(&buffer[len], " \"online\": %d,\r\n", solax_InverterOnline); //
len += sprintf(&buffer[len], " \"quality_of_service\": %.2f,\r\n", solax_QualityOfService); //
len += sprintf(&buffer[len], " \"live_data\":\r\n"); //
len += sprintf(&buffer[len], " {\r\n"); //
len += sprintf(&buffer[len], " \"temperature\": %.0f,\r\n", liveData->Temperature); //
len += sprintf(&buffer[len], " \"dc1_voltage\": %.1f,\r\n", liveData->DC1_Voltage); //
len += sprintf(&buffer[len], " \"dc1_current\": %.1f,\r\n", liveData->DC1_Current); //
len += sprintf(&buffer[len], " \"dc2_voltage\": %.1f,\r\n", liveData->DC2_Voltage); //
len += sprintf(&buffer[len], " \"dc2_current\": %.1f,\r\n", liveData->DC2_Current); //
len += sprintf(&buffer[len], " \"ac_voltage\": %.1f,\r\n", liveData->AC_Voltage); //
len += sprintf(&buffer[len], " \"ac_current\": %.1f,\r\n", liveData->AC_Current); //
len += sprintf(&buffer[len], " \"frequency\": %.2f,\r\n", liveData->Frequency); //
len += sprintf(&buffer[len], " \"power\": %.0f,\r\n", liveData->Power); //
len += sprintf(&buffer[len], " \"energy_today\": %.1f,\r\n", liveData->Energy_Today); //
len += sprintf(&buffer[len], " \"energy_total\": %.1f,\r\n", liveData->Energy_Total); //
len += sprintf(&buffer[len], " \"runtime_total\": %.0f,\r\n", liveData->Runtime_Total); //
len += sprintf(&buffer[len], " \"status\": %d,\r\n", liveData->Status); //
len += sprintf(&buffer[len], " \"error_bits\": %d\r\n", liveData->ErrorBits); //
len += sprintf(&buffer[len], " }\r\n"); //
len += sprintf(&buffer[len], " }\r\n"); //
len += sprintf(&buffer[len], "}\r\n"); //
return len;
}
int poll_HTTP_Server(void)
{
int fd_sock_client;
struct sockaddr_in addr_client;
char response[1000];
int len = 0;
fd_sock_client = accept(fd_sock_server, NULL, NULL);
if ((fd_sock_client == -1) && (errno != EWOULDBLOCK))
{
ERROR_MESSAGE("Http: Error when accepting HTTP-Client connection: %s", strerror(errno));
return -1;
}
if (fd_sock_client >= 0)
{
DEBUG_MESSAGE("HTTP: Got a connection");
/*
len += sprintf(&response[len], "HTTP/1.0 200 OK\r\n");
len += sprintf(&response[len], "Connection: close\r\n");
len += sprintf(&response[len], "Content-Type: text/html; charset=utf-8\r\n");
len += sprintf(&response[len], "\r\n");
len += sprintf(&response[len], "<html><head><title>SolaXd</title></head>\r\n");
len += sprintf(&response[len], "<body>\r\n");
len += solax_JsonPath(&response[len], &solax_LiveData);
len += sprintf(&response[len], "</body></html>\r\n");
*/
len += sprintf(&response[len], "HTTP/1.0 200 OK\r\n");
len += sprintf(&response[len], "Connection: close\r\n");
len += sprintf(&response[len], "Content-Type: application/json\r\n");
len += sprintf(&response[len], "\r\n");
len += solax_JsonPath(&response[len], &solax_LiveData);
write(fd_sock_client, response, len);
close(fd_sock_client);
}
return 0;
}
int init_HTTP_Server(int port)
{
int error;
int flags;
int enable = 1;
struct sockaddr_in addr_server;
fd_sock_server = socket(AF_INET, SOCK_STREAM, 0);
if (fd_sock_server == -1) { ERROR_MESSAGE("Init: Error opening socket for HTTP-Server at port '%d': %s", port, strerror(errno)); return -1; }
flags = fcntl(fd_sock_server, F_GETFL);
flags = fcntl(fd_sock_server, F_SETFL, flags | O_NONBLOCK);
setsockopt(fd_sock_server, SOL_SOCKET, SO_REUSEADDR, &enable , sizeof(int));
// filling server information
addr_server.sin_family = AF_INET;
addr_server.sin_addr.s_addr = INADDR_ANY;
addr_server.sin_port = htons(port);
error = bind(fd_sock_server, (struct sockaddr *) &addr_server, sizeof(addr_server));
if (error == -1) { ERROR_MESSAGE("Init: Error binding socket for HTTP-Server at port '%d': %s", port, strerror(errno)); return -1; }
error = listen(fd_sock_server, 10);
if (error == -1) { ERROR_MESSAGE("Init: Error listening socket for HTTP-Server at port '%d': %s", port, strerror(errno)); return -1; }
NOTICE_MESSAGE("Init: HTTP-Server at port '%d' created successfully", port);
return 0;
}
int init_Serial_Interface(char device[])
{
struct termios tty;
fd_tty = open(device, O_RDWR | O_NOCTTY | O_SYNC);
if (fd_tty < 0)
{
ERROR_MESSAGE("Init: Error opening '%s': %s", device, strerror(errno));
return -1;
}
if (tcgetattr(fd_tty, &tty) < 0)
{
ERROR_MESSAGE("Init: Error opening '%s': %s", device, strerror(errno));
return -1;
}
// raw mode
tty.c_cflag = CLOCAL | CREAD; // ignore modem controls
tty.c_iflag = 0;
tty.c_oflag = 0;
tty.c_lflag = 0;
// baudrate 9600, 8 bits, no parity, 1 stop bit
cfsetospeed(&tty, (speed_t)B9600);
cfsetispeed(&tty, (speed_t)B9600);
tty.c_cflag |= CS8; // 8-bit characters
tty.c_cflag &= ~PARENB; // no parity bit
tty.c_cflag &= ~CSTOPB; // 1 stop bit
tty.c_cflag &= ~CRTSCTS; // no hardware flowcontrol
/* completely non-blocking read */
tty.c_cc[VMIN] = 0;
tty.c_cc[VTIME] = 0;
if (tcsetattr(fd_tty, TCSANOW, &tty) != 0)
{
ERROR_MESSAGE("Init: Error opening '%s': %s", device, strerror(errno));
return -1;
}
NOTICE_MESSAGE("Init: Device '%s' opened successfully", device);
return 0;
}
/*** MAIN ******************************************************************************************/
int main(int argc, char* argv[])
{
int opt;
int error;
uint8_t index = 0;
Solax_LiveData_t liveData[MAX_INDEX_OF_LIVE_DATA + 1] = {0};
if ((argc == 2) && (strcmp(argv[1], "--version") == 0))
{
printf("%s, %s\n", SOLARXD_STRING, VERSION_STRING);
printf("Copyright (C) 2021 Jens Jordan\n");
printf("License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.\n");
printf("There is NO WARRANTY, to the extent permitted by law.\n");
printf("This is free software; you are free to change and redistribute it.\n");
return 0;
}
if ((argc == 2) && (strcmp(argv[1], "--help") == 0))
{
printf("Usage: %s [OPTION] ...\n", SOLARXD_STRING);
printf("Daemon for communication with SolaX-X1_Mini inverter via RS485.\n");
printf(" Options: The default value for each option is shown in square brackets.\n");
printf(" -d <DEV> Use DEV as SolaXd serial port device [%s]\n", DEFAULT_TTY_DEVICE_NAME);
printf(" -p <PORT> Port of HTTP-Server [%d]\n", DEFAULT_TCP_PORT);
printf(" -s <SAMPLE> Samples used for average calculation [%d]\n", DEFAULT_AVERAGE_SAMPLES);
printf(" -a <ADDR> Use ADDR as inverter bus address [%d]\n", DEFAULT_INVERTER_ADDRESS);
printf(" -l <FILE> Write log to FILE, instead to stderr\n");
printf(" -L <LEVEL> LEVEL: 0=error/1=notice/2=info/3=debug/4=trace [%d]\n", DEFAULT_LOG_LEVEL);
printf(" -x Enable test mode with simulated inverter data\n");
printf(" --help Display this help and exit\n");
printf(" --version Output version information and exit\n");
return 0;
}
while ((opt = getopt (argc, argv, ":d:p:s:a:l:L:x")) != -1)
{
switch (opt)
{
case 'd':
arg_TTY_Device = optarg;
break;
case 'p':
arg_TCP_Port = atoi(optarg);