mirror of https://github.com/arendst/Tasmota.git
244 lines
6.7 KiB
C++
244 lines
6.7 KiB
C++
/*
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xnrg_18_sdm72.ino - Eastron SDM72D-M Modbus energy meter support for Tasmota
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Copyright (C) 2021 Gennaro Tortone, Theo Arends and Norbert Richter
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef USE_ENERGY_SENSOR
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#ifdef USE_SDM72
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/*********************************************************************************************\
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* Eastron SDM72 Modbus energy meter
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\*********************************************************************************************/
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#define XNRG_18 18
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//#define SDM72_IMPEXP
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// can be user defined in my_user_config.h
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#ifndef SDM72_SPEED
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#define SDM72_SPEED 9600 // default SDM72 Modbus address
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#endif
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// can be user defined in my_user_config.h
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#ifndef SDM72_ADDR
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#define SDM72_ADDR 1 // default SDM72 Modbus address
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#endif
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#include <TasmotaModbus.h>
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TasmotaModbus *Sdm72Modbus;
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const uint16_t sdm72_register[] {
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0x0034, // 0 SDM72D_POWER [W]
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0x0156, // 3 SDM72D_TOTAL_ACTIVE [kWh]
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#ifdef SDM72_IMPEXP
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0x0500, // 1 SDM72D_IMPORT_POWER [W]
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0x0502, // 2 SDM72D_EXPORT_POWER [W]
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0x0048, // 4 SDM72D_IMPORT_ACTIVE [kWh]
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0x004A // 5 SDM72D_EXPORT_ACTIVE [kWh]
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#endif // SDM72_IMPEXP
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};
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struct SDM72 {
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float total_active = NAN;
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#ifdef SDM72_IMPEXP
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float import_power = 0;
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float export_power = 0;
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float import_active = 0;
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#endif // SDM72_IMPEXP
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uint8_t read_state = 0;
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uint8_t send_retry = 0;
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} Sdm72;
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/*********************************************************************************************/
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void Sdm72Every250ms(void)
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{
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bool data_ready = Sdm72Modbus->ReceiveReady();
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if (data_ready) {
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uint8_t buffer[14]; // At least 5 + (2 * 2) = 9
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uint32_t error = Sdm72Modbus->ReceiveBuffer(buffer, 2);
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AddLogBuffer(LOG_LEVEL_DEBUG_MORE, buffer, Sdm72Modbus->ReceiveCount());
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if (error) {
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AddLog(LOG_LEVEL_DEBUG, PSTR("SDM: SDM72 error %d"), error);
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} else {
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Energy.data_valid[0] = 0;
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float value;
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((uint8_t*)&value)[3] = buffer[3]; // Get float values
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((uint8_t*)&value)[2] = buffer[4];
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((uint8_t*)&value)[1] = buffer[5];
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((uint8_t*)&value)[0] = buffer[6];
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switch(Sdm72.read_state) {
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case 0:
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Energy.active_power[0] = value; // W
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break;
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case 1:
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Sdm72.total_active = value; // kWh
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break;
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#ifdef SDM72_IMPEXP
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case 2:
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Sdm72.import_power = value; // W
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break;
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case 3:
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Sdm72.export_power = value; // W
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break;
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case 4:
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Energy.import_active[0] = value; // kWh
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break;
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case 5:
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Energy.export_active[0] = value; // kWh
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break;
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#endif // SDM72_IMPEXP
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}
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++Sdm72.read_state %= nitems(sdm72_register);
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if (0 == Sdm72.read_state && !isnan(Sdm72.total_active)) {
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Energy.import_active[0] = Sdm72.total_active;
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EnergyUpdateTotal();
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}
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}
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} // end data ready
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if (0 == Sdm72.send_retry || data_ready) {
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Sdm72.send_retry = 5;
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Sdm72Modbus->Send(SDM72_ADDR, 0x04, sdm72_register[Sdm72.read_state], 2);
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} else {
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Sdm72.send_retry--;
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}
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}
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void Sdm72SnsInit(void)
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{
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Sdm72Modbus = new TasmotaModbus(Pin(GPIO_SDM72_RX), Pin(GPIO_SDM72_TX));
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uint8_t result = Sdm72Modbus->Begin(SDM72_SPEED);
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if (result) {
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if (2 == result) {
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ClaimSerial();
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}
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} else {
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TasmotaGlobal.energy_driver = ENERGY_NONE;
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}
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}
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void Sdm72DrvInit(void)
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{
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if (PinUsed(GPIO_SDM72_RX) && PinUsed(GPIO_SDM72_TX)) {
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Energy.voltage_available = false;
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Energy.current_available = false;
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TasmotaGlobal.energy_driver = XNRG_18;
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}
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}
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#ifdef SDM72_IMPEXP
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/*
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#ifdef USE_WEBSERVER
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const char HTTP_ENERGY_SDM72[] PROGMEM =
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"{s}" D_EXPORT_POWER "{m}%*_f " D_UNIT_WATT "{e}"
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"{s}" D_IMPORT_POWER "{m}%*_f " D_UNIT_WATT "{e}";
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#endif // USE_WEBSERVER
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void Sdm72Show(bool json) {
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if (isnan(Sdm72.total_active)) { return; }
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if (json) {
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ResponseAppend_P(PSTR(",\"" D_JSON_EXPORT_POWER "\":%*_f,\"" D_JSON_IMPORT_POWER "\":%*_f"),
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Settings->flag2.wattage_resolution, &Sdm72.export_power,
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Settings->flag2.wattage_resolution, &Sdm72.import_power);
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#ifdef USE_WEBSERVER
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} else {
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WSContentSend_PD(HTTP_ENERGY_SDM72,
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Settings->flag2.wattage_resolution, &Sdm72.export_power,
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Settings->flag2.wattage_resolution, &Sdm72.import_power);
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#endif // USE_WEBSERVER
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}
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}
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*/
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#ifdef USE_WEBSERVER
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const char HTTP_ENERGY_SDM72[] PROGMEM =
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"{s}" D_EXPORT_POWER "{m}%s" D_UNIT_WATT "{e}"
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"{s}" D_IMPORT_POWER "{m}%s" D_UNIT_WATT "{e}";
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#endif // USE_WEBSERVER
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void Sdm72Show(bool json) {
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if (isnan(Sdm72.total_active)) { return; }
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char value_chr[TOPSZ];
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char value2_chr[TOPSZ];
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if (json) {
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ResponseAppend_P(PSTR(",\"" D_JSON_EXPORT_POWER "\":%s,\"" D_JSON_IMPORT_POWER "\":%s"),
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EnergyFormat(value_chr, &Sdm72.export_power, Settings->flag2.wattage_resolution),
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EnergyFormat(value2_chr, &Sdm72.import_power, Settings->flag2.wattage_resolution));
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#ifdef USE_WEBSERVER
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} else {
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WSContentSend_PD(HTTP_ENERGY_SDM72, WebEnergyFormat(value_chr, &Sdm72.export_power, Settings->flag2.wattage_resolution),
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WebEnergyFormat(value2_chr, &Sdm72.import_power, Settings->flag2.wattage_resolution));
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#endif // USE_WEBSERVER
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}
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}
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#endif // SDM72_IMPEXP
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/*********************************************************************************************\
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* Interface
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\*********************************************************************************************/
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bool Xnrg18(uint8_t function)
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{
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bool result = false;
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switch (function) {
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case FUNC_EVERY_250_MSECOND:
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Sdm72Every250ms();
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break;
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#ifdef SDM72_IMPEXP
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case FUNC_JSON_APPEND:
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Sdm72Show(1);
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break;
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#ifdef USE_WEBSERVER
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#ifdef USE_ENERGY_COLUMN_GUI
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case FUNC_WEB_COL_SENSOR:
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#else // not USE_ENERGY_COLUMN_GUI
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case FUNC_WEB_SENSOR:
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#endif // USE_ENERGY_COLUMN_GUI
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Sdm72Show(0);
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break;
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#endif // USE_WEBSERVER
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#endif // SDM72_IMPEXP
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case FUNC_INIT:
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Sdm72SnsInit();
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break;
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case FUNC_PRE_INIT:
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Sdm72DrvInit();
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break;
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}
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return result;
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}
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#endif // USE_SDM72
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#endif // USE_ENERGY_SENSOR
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