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Implement newer RTU protocol of Growatt inverters (#3315)

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Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Co-authored-by: Daniel Lindenaar <daniel-git@lindenaar.eu>
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djwlindenaar 2022-04-10 22:06:11 +02:00 committed by GitHub
parent d4ff98680a
commit 5e79a1f500
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 86 additions and 25 deletions
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45
esphome/components/growatt_solar/growatt_solar.cpp
View file

@ -7,9 +7,11 @@ namespace growatt_solar {
static const char *const TAG = "growatt_solar";
static const uint8_t MODBUS_CMD_READ_IN_REGISTERS = 0x04;
static const uint8_t MODBUS_REGISTER_COUNT = 33;
static const uint8_t MODBUS_REGISTER_COUNT[] = {33, 95}; // indexed with enum GrowattProtocolVersion
void GrowattSolar::update() { this->send(MODBUS_CMD_READ_IN_REGISTERS, 0, MODBUS_REGISTER_COUNT); }
void GrowattSolar::update() {
this->send(MODBUS_CMD_READ_IN_REGISTERS, 0, MODBUS_REGISTER_COUNT[this->protocol_version_]);
}
void GrowattSolar::on_modbus_data(const std::vector<uint8_t> &data) {
auto publish_1_reg_sensor_state = [&](sensor::Sensor *sensor, size_t i, float unit) -> void {
@ -27,6 +29,8 @@ void GrowattSolar::on_modbus_data(const std::vector<uint8_t> &data) {
sensor->publish_state(value);
};
switch (this->protocol_version_) {
case RTU: {
publish_1_reg_sensor_state(this->inverter_status_, 0, 1);
publish_2_reg_sensor_state(this->pv_active_power_sensor_, 1, 2, ONE_DEC_UNIT);
@ -58,6 +62,43 @@ void GrowattSolar::on_modbus_data(const std::vector<uint8_t> &data) {
publish_2_reg_sensor_state(this->total_energy_production_, 28, 29, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->inverter_module_temp_, 32, ONE_DEC_UNIT);
break;
}
case RTU2: {
publish_1_reg_sensor_state(this->inverter_status_, 0, 1);
publish_2_reg_sensor_state(this->pv_active_power_sensor_, 1, 2, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->pvs_[0].voltage_sensor_, 3, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->pvs_[0].current_sensor_, 4, ONE_DEC_UNIT);
publish_2_reg_sensor_state(this->pvs_[0].active_power_sensor_, 5, 6, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->pvs_[1].voltage_sensor_, 7, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->pvs_[1].current_sensor_, 8, ONE_DEC_UNIT);
publish_2_reg_sensor_state(this->pvs_[1].active_power_sensor_, 9, 10, ONE_DEC_UNIT);
publish_2_reg_sensor_state(this->grid_active_power_sensor_, 35, 36, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->grid_frequency_sensor_, 37, TWO_DEC_UNIT);
publish_1_reg_sensor_state(this->phases_[0].voltage_sensor_, 38, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->phases_[0].current_sensor_, 39, ONE_DEC_UNIT);
publish_2_reg_sensor_state(this->phases_[0].active_power_sensor_, 40, 41, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->phases_[1].voltage_sensor_, 42, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->phases_[1].current_sensor_, 43, ONE_DEC_UNIT);
publish_2_reg_sensor_state(this->phases_[1].active_power_sensor_, 44, 45, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->phases_[2].voltage_sensor_, 46, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->phases_[2].current_sensor_, 47, ONE_DEC_UNIT);
publish_2_reg_sensor_state(this->phases_[2].active_power_sensor_, 48, 49, ONE_DEC_UNIT);
publish_2_reg_sensor_state(this->today_production_, 53, 54, ONE_DEC_UNIT);
publish_2_reg_sensor_state(this->total_energy_production_, 55, 56, ONE_DEC_UNIT);
publish_1_reg_sensor_state(this->inverter_module_temp_, 93, ONE_DEC_UNIT);
break;
}
}
}
void GrowattSolar::dump_config() {

8
esphome/components/growatt_solar/growatt_solar.h
View file

@ -10,12 +10,19 @@ namespace growatt_solar {
static const float TWO_DEC_UNIT = 0.01;
static const float ONE_DEC_UNIT = 0.1;
enum GrowattProtocolVersion {
RTU = 0,
RTU2,
};
class GrowattSolar : public PollingComponent, public modbus::ModbusDevice {
public:
void update() override;
void on_modbus_data(const std::vector<uint8_t> &data) override;
void dump_config() override;
void set_protocol_version(GrowattProtocolVersion protocol_version) { this->protocol_version_ = protocol_version; }
void set_inverter_status_sensor(sensor::Sensor *sensor) { this->inverter_status_ = sensor; }
void set_grid_frequency_sensor(sensor::Sensor *sensor) { this->grid_frequency_sensor_ = sensor; }
@ -67,6 +74,7 @@ class GrowattSolar : public PollingComponent, public modbus::ModbusDevice {
sensor::Sensor *today_production_{nullptr};
sensor::Sensor *total_energy_production_{nullptr};
sensor::Sensor *inverter_module_temp_{nullptr};
GrowattProtocolVersion protocol_version_;
};
} // namespace growatt_solar

14
esphome/components/growatt_solar/sensor.py
View file

@ -39,7 +39,7 @@ UNIT_MILLIAMPERE = "mA"
CONF_INVERTER_STATUS = "inverter_status"
CONF_PV_ACTIVE_POWER = "pv_active_power"
CONF_INVERTER_MODULE_TEMP = "inverter_module_temp"
CONF_PROTOCOL_VERSION = "protocol_version"
AUTO_LOAD = ["modbus"]
CODEOWNERS = ["@leeuwte"]
@ -95,10 +95,20 @@ PV_SCHEMA = cv.Schema(
{cv.Optional(sensor): schema for sensor, schema in PV_SENSORS.items()}
)
GrowattProtocolVersion = growatt_solar_ns.enum("GrowattProtocolVersion")
PROTOCOL_VERSIONS = {
"RTU": GrowattProtocolVersion.RTU,
"RTU2": GrowattProtocolVersion.RTU2,
}
CONFIG_SCHEMA = (
cv.Schema(
{
cv.GenerateID(): cv.declare_id(GrowattSolar),
cv.Optional(CONF_PROTOCOL_VERSION, default="RTU"): cv.enum(
PROTOCOL_VERSIONS, upper=True
),
cv.Optional(CONF_PHASE_A): PHASE_SCHEMA,
cv.Optional(CONF_PHASE_B): PHASE_SCHEMA,
cv.Optional(CONF_PHASE_C): PHASE_SCHEMA,
@ -152,6 +162,8 @@ async def to_code(config):
await cg.register_component(var, config)
await modbus.register_modbus_device(var, config)
cg.add(var.set_protocol_version(config[CONF_PROTOCOL_VERSION]))
if CONF_INVERTER_STATUS in config:
sens = await sensor.new_sensor(config[CONF_INVERTER_STATUS])
cg.add(var.set_inverter_status_sensor(sens))