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78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
#include <vector>
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#include "modbus_number.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace modbus_controller {
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static const char *const TAG = "modbus.number";
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void ModbusNumber::parse_and_publish(const std::vector<uint8_t> &data) {
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float result = payload_to_float(data, *this);
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// Is there a lambda registered
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// call it with the pre converted value and the raw data array
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if (this->transform_func_.has_value()) {
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// the lambda can parse the response itself
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auto val = (*this->transform_func_)(this, result, data);
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if (val.has_value()) {
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ESP_LOGV(TAG, "Value overwritten by lambda");
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result = val.value();
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}
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}
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ESP_LOGD(TAG, "Number new state : %.02f", result);
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// this->sensor_->raw_state = result;
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this->publish_state(result);
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}
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void ModbusNumber::control(float value) {
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std::vector<uint16_t> data;
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float write_value = value;
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// Is there are lambda configured?
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if (this->write_transform_func_.has_value()) {
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// data is passed by reference
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// the lambda can fill the empty vector directly
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// in that case the return value is ignored
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auto val = (*this->write_transform_func_)(this, value, data);
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if (val.has_value()) {
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ESP_LOGV(TAG, "Value overwritten by lambda");
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write_value = val.value();
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} else {
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ESP_LOGV(TAG, "Communication handled by lambda - exiting control");
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return;
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}
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} else {
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write_value = multiply_by_ * write_value;
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}
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// lambda didn't set payload
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if (data.empty()) {
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data = float_to_payload(write_value, this->sensor_value_type);
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}
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ESP_LOGD(TAG,
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"Updating register: connected Sensor=%s start address=0x%X register count=%d new value=%.02f (val=%.02f)",
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this->get_name().c_str(), this->start_address, this->register_count, write_value, write_value);
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// Create and send the write command
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ModbusCommandItem write_cmd;
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if (this->register_count == 1 && !this->use_write_multiple_) {
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write_cmd = ModbusCommandItem::create_write_single_command(parent_, this->start_address + this->offset, data[0]);
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} else {
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write_cmd = ModbusCommandItem::create_write_multiple_command(parent_, this->start_address + this->offset,
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this->register_count, data);
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}
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// publish new value
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write_cmd.on_data_func = [this, write_cmd, value](ModbusRegisterType register_type, uint16_t start_address,
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const std::vector<uint8_t> &data) {
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// gets called when the write command is ack'd from the device
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parent_->on_write_register_response(write_cmd.register_type, start_address, data);
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this->publish_state(value);
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};
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parent_->queue_command(write_cmd);
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}
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void ModbusNumber::dump_config() { LOG_NUMBER(TAG, "Modbus Number", this); }
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} // namespace modbus_controller
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} // namespace esphome
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