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Update SOLAX-CAN.cpp

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mvgalen 2025-08-14 13:42:17 +02:00
parent 8d079f3db8
commit b0e103a0fc
1 changed files with 38 additions and 10 deletions
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48
Software/src/inverter/SOLAX-CAN.cpp
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@ -110,8 +110,13 @@ void update_values_can_inverter() { //This function maps all the values fetched
// If not receiveing any communication from the inverter, open contactors and return to battery announce state
if (millis() - LastFrameTime >= SolaxTimeout) {
datalayer.system.status.inverter_allows_contactor_closing = false;
if (STATE != BATTERY_ANNOUNCE && LastFrameTime > 0)
logging.printf("SOLAX-CAN: Timeout on inverter CAN messages\n");
STATE = BATTERY_ANNOUNCE;
}
if (datalayer.battery.status.real_bms_status == BMS_DISCONNECTED)
return;
//Calculate the required values
temperature_average =
((datalayer.battery.status.temperature_max_dC + datalayer.battery.status.temperature_min_dC) / 2);
@ -165,6 +170,7 @@ void update_values_can_inverter() { //This function maps all the values fetched
SOLAX_1875.data.u8[1] = (temperature_average >> 8);
SOLAX_1875.data.u8[2] = (uint8_t)NUMBER_OF_MODULES; // Number of slave batteries
SOLAX_1875.data.u8[4] = (uint8_t)0; // Contactor Status 0=off, 1=on.
//SOLAX_1875.data.u8[5] charge request
//BMS_PackTemps (strange name, since it has voltages?)
SOLAX_1876.data.u8[0] = (int8_t)datalayer.battery.status.temperature_max_dC;
@ -216,16 +222,24 @@ void map_can_frame_to_variable_inverter(CAN_frame rx_frame) {
datalayer.system.status.CAN_inverter_still_alive = CAN_STILL_ALIVE;
}
if (rx_frame.ID == 0x1871 && rx_frame.data.u8[0] == (0x01) ||
rx_frame.ID == 0x1871 && rx_frame.data.u8[0] == (0x02)) {
if (rx_frame.ID == 0x1871 && rx_frame.data.u8[0] == (0x01) || rx_frame.ID == 0x1871 && rx_frame.data.u8[0] == (0x02)) {
if (millis() - LastFrameTime >= SolaxTimeout || LastFrameTime == 0)
logging.printf("SOLAX-CAN: First CAN message from inverter\n");
LastFrameTime = millis();
switch (STATE) {
case (BATTERY_ANNOUNCE):
#ifdef DEBUG_LOG
logging.println("Solax Battery State: Announce");
// logging.println("Solax Battery State: Announce");
#endif
datalayer.system.status.inverter_allows_contactor_closing = false;
SOLAX_1875.data.u8[4] = (0x00); // Inform Inverter: Contactor 0=off, 1=on.
if (datalayer.battery.status.real_bms_status == BMS_DISCONNECTED)
break;
if (datalayer.system.settings.equipment_stop_active)
break;
for (uint8_t i = 0; i <= number_of_batteries; i++) {
transmit_can_frame(&SOLAX_187E, can_config.inverter);
transmit_can_frame(&SOLAX_187A, can_config.inverter);
@ -240,8 +254,12 @@ void map_can_frame_to_variable_inverter(CAN_frame rx_frame) {
transmit_can_frame(&SOLAX_100A001, can_config.inverter); //BMS Announce
// Message from the inverter to proceed to contactor closing
// Byte 4 changes from 0 to 1
if (rx_frame.data.u64 == Contactor_Close_Payload)
if (rx_frame.data.u64 == Contactor_Close_Payload) {
if (STATE != WAITING_FOR_CONTACTOR)
logging.println("SOLAX-CAN: Battery may close contactor");
STATE = WAITING_FOR_CONTACTOR;
datalayer.system.status.inverter_allows_contactor_closing = true;
}
break;
case (WAITING_FOR_CONTACTOR):
@ -256,15 +274,24 @@ void map_can_frame_to_variable_inverter(CAN_frame rx_frame) {
transmit_can_frame(&SOLAX_1877, can_config.inverter);
transmit_can_frame(&SOLAX_1878, can_config.inverter);
transmit_can_frame(&SOLAX_1801, can_config.inverter); // Announce that the battery will be connected
STATE = CONTACTOR_CLOSED; // Jump to Contactor Closed State
if (datalayer.system.status.battery_allows_contactor_closing) {
STATE = CONTACTOR_CLOSED; // Jump to Contactor Closed State
#ifdef DEBUG_LOG
logging.println("Solax Battery State: Contactor Closed");
logging.println("SOLAX-CAN: Battery contactor Closed. Informing inverter");
}
#endif
break;
case (CONTACTOR_CLOSED):
datalayer.system.status.inverter_allows_contactor_closing = true;
SOLAX_1875.data.u8[4] = (0x01); // Inform Inverter: Contactor 0=off, 1=on.
if (datalayer.system.settings.equipment_stop_active) {
SOLAX_1875.data.u8[4] = (0x00); // Inform Inverter: Contactor 0=off, 1=on.
STATE = BATTERY_ANNOUNCE;
#ifdef DEBUG_LOG
logging.println("Solax Battery new State: Announce");
#endif
} else {
SOLAX_1875.data.u8[4] = (0x01); // Inform Inverter: Contactor 0=off, 1=on.
}
transmit_can_frame(&SOLAX_187E, can_config.inverter);
transmit_can_frame(&SOLAX_187A, can_config.inverter);
transmit_can_frame(&SOLAX_1872, can_config.inverter);
@ -277,6 +304,7 @@ void map_can_frame_to_variable_inverter(CAN_frame rx_frame) {
// Message from the inverter to open contactor
// Byte 4 changes from 1 to 0
if (rx_frame.data.u64 == Contactor_Open_Payload) {
logging.println("SOLAX-CAN: Battery should open contactor");
set_event(EVENT_INVERTER_OPEN_CONTACTOR, 0);
STATE = BATTERY_ANNOUNCE;
}
@ -288,12 +316,12 @@ void map_can_frame_to_variable_inverter(CAN_frame rx_frame) {
transmit_can_frame(&SOLAX_1881, can_config.inverter);
transmit_can_frame(&SOLAX_1882, can_config.inverter);
#ifdef DEBUG_LOG
logging.println("1871 05-frame received from inverter");
// logging.println("1871 05-frame received from inverter");
#endif
}
if (rx_frame.ID == 0x1871 && rx_frame.data.u8[0] == (0x03)) {
#ifdef DEBUG_LOG
logging.println("1871 03-frame received from inverter");
// logging.println("1871 03-frame received from inverter");
#endif
}
}