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https://github.com/dalathegreat/Battery-Emulator.git
synced 2025-10-05 10:49:42 +02:00
Tweaks to protocol
This commit is contained in:
Daniel Öster
parent
79ae74122a
commit
d3eeeca7b3
1 changed files with 46 additions and 37 deletions
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@ -6,8 +6,9 @@
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static const uint8_t KOSTAL_FRAMEHEADER[5] = {0x62, 0xFF, 0x02, 0xFF, 0x29};
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static const uint8_t KOSTAL_FRAMEHEADER2[5] = {0x63, 0xFF, 0x02, 0xFF, 0x29};
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static uint16_t discharge_current = 0;
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static uint16_t charge_current = 0;
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static uint16_t discharge_current_dA = 0;
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static uint16_t charge_current_dA = 0;
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static int16_t average_temperature_dC = 0;
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union f32b {
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float f;
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@ -21,38 +22,40 @@ uint8_t frame1[40] = {
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// values in frame2 will be overwritten at update_modbus_registers_inverter()
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uint8_t frame2[64] = {0x0A, 0xE2, 0xFF, 0x02, 0xFF, 0x29, // frame Header
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0x1D, 0x5A, 0x85, 0x43, // Voltage (float) Modbus register 216
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0x1D, 0x5A, 0x85, 0x43, // Voltage (float) Modbus register 216, Bit 6-9
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0x01, 0x03, 0x8D, 0x43, // Max Voltage (2 byte float)
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0x01, 0x03, 0x8D, 0x43, // Max Voltage (2 byte float), Bit 10-13
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// 0x8D43 = 36163 (361.63) DALA: Is this nominal voltage?
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0x01, 0x03, 0xAC, 0x41, // Temp (2 byte float) Modbus register 214, Bit 14-17
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0x01, 0x01, 0x01, 0x01, // Current, Bit 18-21
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0x01, 0x01, 0x01, 0x01, // Current, Bit 22-25
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0x01, 0x03, 0xAC, 0x41, // Temp (2 byte float) Modbus register 214
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0x01, 0x01, 0x01, 0x01, // Current
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0x01, 0x01, 0x01, 0x01, // Current
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0x01, 0x03, 0x48, 0x42, // Peak discharge current (2 byte float), Bit 26-29
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0x01, 0x03, 0x48, 0x42, // Peak discharge current (2 byte float)
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0x01, 0x03, 0xC8, 0x41, // Nominal discharge I (2 byte float)
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0x01, 0x03, 0xC8, 0x41, // Nominal discharge I (2 byte float) , Bit 30-33
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0x01, 0x01, // Unknown
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0x01, 0x05, // Max charge? (2 byte float)
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0x01, 0x05, // Max charge? (2 byte float) Bit 36-37
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0xCD, 0xCC, // Unknown
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0xB4, 0x41, // MaxCellTemp (2 byte float)
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0xB4, 0x41, // MaxCellTemp (2 byte float) Bit 40-41
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0x01, 0x0C, // Maybe cell information?
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0xA4, 0x41, // MinCellTemp (2 byte float)
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0xA4, 0x41, // MinCellTemp (2 byte float) Bit 44-45
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0xA4, 0x70, 0x55, 0x40, // MaxCellVolt (float)
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0x7D, 0x3F, 0x55, 0x40, // MinCellVolt (float)
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0xA4, 0x70, 0x55, 0x40, // MaxCellVolt (float), Bit 46-49
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// 0xA470 = 4.2096V
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0x7D, 0x3F, 0x55, 0x40, // MinCellVolt (float), Bit 50-53
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// 0x7D3F = 3.2063V
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0xFE, // Cylce count
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0x04, // Cycle count?
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0x01, 0x40, // ??
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0x64, // SOC
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0xFE, // Cylce count , Bit 54
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0x04, // Cycle count? , Bit 55
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0x01, 0x40, // ?? , Bit 56, 57
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0x64, // SOC , Bit 58
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0x01, // Unknown, Mostly 0x01, seen also 0x02
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0x01, // Unknown, Seen only 0x01
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0x02, // Unknown, Mostly 0x02. seen also 0x01
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0x00, // CRC (inverted sum of bytes 1-62 + 0xC0)
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0x00, // CRC (inverted sum of bytes 1-62 + 0xC0), Bit 62
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0x00};
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uint8_t frame3[9] = {
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@ -188,43 +191,49 @@ void receive_RS485() // Runs as fast as possible to handle the serial stream
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void update_RS485_registers_inverter() {
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if (datalayer.battery.status.voltage_dV > 10) { // Only update value when we have voltage available to avoid div0
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charge_current =
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charge_current_dA =
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((datalayer.battery.status.max_charge_power_W * 10) /
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datalayer.battery.status.voltage_dV); //Charge power in W , max volt in V+1decimal (P=UI, solve for I)
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//The above calculation results in (30 000*10)/3700=81A
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charge_current = (charge_current * 10); //Value needs a decimal before getting sent to inverter (81.0A)
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charge_current_dA = (charge_current_dA * 10); //Value needs a decimal before getting sent to inverter (81.0A)
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discharge_current =
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discharge_current_dA =
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((datalayer.battery.status.max_discharge_power_W * 10) /
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datalayer.battery.status.voltage_dV); //Charge power in W , max volt in V+1decimal (P=UI, solve for I)
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//The above calculation results in (30 000*10)/3700=81A
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discharge_current = (discharge_current * 10); //Value needs a decimal before getting sent to inverter (81.0A)
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discharge_current_dA = (discharge_current_dA * 10); //Value needs a decimal before getting sent to inverter (81.0A)
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}
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if (charge_current > datalayer.battery.info.max_charge_amp_dA) {
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charge_current =
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if (charge_current_dA > datalayer.battery.info.max_charge_amp_dA) {
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charge_current_dA =
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datalayer.battery.info
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.max_charge_amp_dA; //Cap the value to the max allowed Amp. Some inverters cannot handle large values.
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}
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if (discharge_current > datalayer.battery.info.max_discharge_amp_dA) {
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discharge_current =
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if (discharge_current_dA > datalayer.battery.info.max_discharge_amp_dA) {
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discharge_current_dA =
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datalayer.battery.info
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.max_discharge_amp_dA; //Cap the value to the max allowed Amp. Some inverters cannot handle large values.
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}
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float2frame(frame2, (float)(datalayer.battery.status.voltage_dV / 10), 6);
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average_temperature_dC =
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((datalayer.battery.status.temperature_max_dC + datalayer.battery.status.temperature_min_dC) / 2);
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if (datalayer.battery.status.temperature_min_dC < 0) {
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average_temperature_dC = 0;
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}
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float2frame(frame2, (float)(datalayer.battery.status.voltage_dV / 10), 6); // Confirmed OK mapping
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float2frameMSB(frame2, (float)(datalayer.battery.info.max_design_voltage_dV / 10), 12);
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float2frameMSB(
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frame2, (float)((datalayer.battery.status.temperature_max_dC + datalayer.battery.status.temperature_min_dC) / 20),
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16);
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float2frameMSB(frame2, (float)datalayer.battery.status.current_dA, 20);
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float2frameMSB(frame2, (float)datalayer.battery.status.current_dA, 24);
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frame2[16] = (uint8_t)(average_temperature_dC / 10);
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float2frameMSB(frame2, (float)(discharge_current / 10), 28);
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float2frameMSB(frame2, (float)(discharge_current / 10), 32);
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float2frameMSB(frame2, (float)datalayer.battery.status.current_dA / 10,
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20); // Peak discharge? current (2 byte float)
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float2frameMSB(frame2, (float)datalayer.battery.status.current_dA / 10, 24);
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float2frameMSB(frame2, (float)(discharge_current_dA / 10), 28); // Nominal discharge? I (2 byte float)
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float2frameMSB(frame2, (float)(discharge_current_dA / 10), 32);
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float2frameMSB(frame2, (float)(datalayer.battery.status.temperature_max_dC / 10), 40);
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float2frameMSB(frame2, (float)(datalayer.battery.status.temperature_min_dC / 10), 44);
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@ -232,7 +241,7 @@ void update_RS485_registers_inverter() {
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float2frame(frame2, (float)(datalayer.battery.status.cell_max_voltage_mV / 1000), 46);
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float2frame(frame2, (float)(datalayer.battery.status.cell_min_voltage_mV / 1000), 50);
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frame2[58] = (byte)(datalayer.battery.status.reported_soc / 100);
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frame2[58] = (byte)(datalayer.battery.status.reported_soc / 100); // Confirmed OK mapping
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register_content_ok = true;
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}
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