Tasmota/tasmota/xnrg_09_dds2382.ino

134 lines
5.5 KiB
C++

/*
xnrg_09_dds2382.ino - Hiking DDS238-2 Modbus energy meter support for Tasmota
Copyright (C) 2020 Matteo Campanella - based on the work of Gennaro Tortone
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_ENERGY_SENSOR
#ifdef USE_DDS2382
/*********************************************************************************************\
* Hiking DDS238-2 Modbus energy meter
*
* Based on: https://github.com/reaper7/SDM_Energy_Meter
\*********************************************************************************************/
#define XNRG_09 9
#ifndef DDS2382_SPEED
#define DDS2382_SPEED 9600 // default dds2382 Modbus address
#endif
#ifndef DDS2382_ADDR
#define DDS2382_ADDR 1 // default dds2382 Modbus address
#endif
#include <TasmotaModbus.h>
TasmotaModbus *Dds2382Modbus;
uint8_t Dds2382_send_retry = 0;
void Dds2382EverySecond(void)
{
bool data_ready = Dds2382Modbus->ReceiveReady();
if (data_ready) {
uint8_t buffer[46]; // At least 5 + (2 * 18) = 41
uint32_t error = Dds2382Modbus->ReceiveBuffer(buffer, 18);
AddLogBuffer(LOG_LEVEL_DEBUG_MORE, buffer, Dds2382Modbus->ReceiveCount());
if (error) {
AddLog_P2(LOG_LEVEL_DEBUG, PSTR(D_LOG_DEBUG "DDS2382 response error %d"), error);
} else {
Energy.data_valid[0] = 0;
// 0 1 2 3 4 5 6 7 8 9 A B C D E F 10 11 = ModBus register
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 = Buffer index
// 01 03 24 00 00 1C 7B 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 F3 00 00 17 88 09 77 01 A6 03 F8 00 70 03 E1 13 8A 63 ED
// 01 03 24 00 00 1C AD 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 F3 00 00 17 BA 09 77 01 F1 04 AF 00 6C 03 E3 13 86 41 A2
// SA FC BC EnergyTotal ExportActiv ImportActiv Volta Curre APowe RPowe PFact Frequ Crc-- = DDS238-2 ZN/S version 1 (#6384)
// SA FC BC EnergyTotal ExportActiv ImportActiv Volta Curre APowe RPowe PFact Frequ Crc-- = DDS238-2 ZN/S version 2 (#6531)
// {"TotalStartTime":"2020-01-08T09:43:05","Total":0.060,"Yesterday":0.001,"Today":0.001,"ExportActive":12.670,"Period":0,"Power":1016,"ApparentPower":1020,"ReactivePower":112,"Factor":0.99,"Frequency":50,"Voltage":242,"Current":4.210}}
// {"TotalStartTime":"2020-01-08T00:00:00","Total":0.061,"Yesterday":0.001,"Today":0.001,"ExportActive":12.670,"Period":0.020,"Power":1199.000,"ApparentPower":1204.231,"ReactivePower":108.000,"Factor":1.00,"Frequency":49.98,"Voltage":242.3,"Current":4.970}}
Energy.voltage[0] = (float)((buffer[27] << 8) + buffer[28]) / 10.0;
Energy.current[0] = (float)((buffer[29] << 8) + buffer[30]) / 100.0;
Energy.active_power[0] = (float)((buffer[31] << 8) + buffer[32]);
Energy.reactive_power[0] = (float)((buffer[33] << 8) + buffer[34]);
Energy.power_factor[0] = (float)((buffer[35] << 8) + buffer[36]) / 1000.0; // 1.00
Energy.frequency[0] = (float)((buffer[37] << 8) + buffer[38]) / 100.0; // 50.0 Hz
uint8_t offset = 11;
if (Settings.flag3.dds2382_model) { // SetOption71 - Select different Modbus registers for Active Energy (#6531)
offset = 19;
}
Energy.export_active[0] = (float)((buffer[offset] << 24) + (buffer[offset +1] << 16) + (buffer[offset +2] << 8) + buffer[offset +3]) / 100.0; // 429496.729 kW
float import_active = (float)((buffer[offset +4] << 24) + (buffer[offset +5] << 16) + (buffer[offset +6] << 8) + buffer[offset +7]) / 100.0; // 429496.729 kW
EnergyUpdateTotal(import_active, true); // 484.708 kWh
}
} // end data ready
if (0 == Dds2382_send_retry || data_ready) {
Dds2382_send_retry = 5;
Dds2382Modbus->Send(DDS2382_ADDR, 0x03, 0, 18);
} else {
Dds2382_send_retry--;
}
}
void Dds2382SnsInit(void)
{
Dds2382Modbus = new TasmotaModbus(Pin(GPIO_DDS2382_RX), Pin(GPIO_DDS2382_TX));
uint8_t result = Dds2382Modbus->Begin(DDS2382_SPEED);
if (result) {
if (2 == result) { ClaimSerial(); }
} else {
TasmotaGlobal.energy_driver = ENERGY_NONE;
}
}
void Dds2382DrvInit(void)
{
if (PinUsed(GPIO_DDS2382_RX) && PinUsed(GPIO_DDS2382_TX)) {
TasmotaGlobal.energy_driver = XNRG_09;
}
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xnrg09(uint8_t function)
{
bool result = false;
switch (function) {
case FUNC_ENERGY_EVERY_SECOND:
if (TasmotaGlobal.uptime > 4) { Dds2382EverySecond(); }
break;
case FUNC_INIT:
Dds2382SnsInit();
break;
case FUNC_PRE_INIT:
Dds2382DrvInit();
break;
}
return result;
}
#endif // USE_DDS2382
#endif // USE_ENERGY_SENSOR