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Tasmota/tasmota/xnrg_13_fif_le01mr.ino

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/*
xnrg_13_fif_le01mr.ino - F&F LE-01MR energy meter with Modbus interface - support for Tasmota
Copyright (C) 2020 Przemyslaw Wistuba
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_LE01MR
/*********************************************************************************************\
* F&F LE-01MR - This is a single phase energy meter with rs485 modbus interface
* (and bidirectional energy counting - enabled by RS485).
* It measure: Active energy imported AE+ [kWh] , Reactive energy imported RE+ [kvarh],
* Voltage V [V], Current I [A], Frequency F [Hz], power factor (aka "cos-phi"),
* Active power P [kW], Reactive power Q [kVAr], Apparent power S [kVA],
* *Active energy exported AE- [kWh] (when meter is switched to bi-directional counting then
* reactive energy imported register contains value of Active energy exported).
*
* Meter descriptions at manufacturer page (english version have some description errors):
* EN: https://www.fif.com.pl/en/usage-electric-power-meters/517-electricity-consumption-meter-le-01mr.html
* PL: https://www.fif.com.pl/pl/liczniki-zuzycia-energii-elektrycznej/517-licznik-zuzycia-energii-le-01mr.html
*
* Note about communication settings: The meter must be reconfigured to use baudrate 2400 (or 9600) *without*
* parity bit - by default the meter is configured to 9600 8E1
* (Frame format: "EVEN 1") . To make those changes, use LE-Config
* software (can be found in download tab in product page - link above)
* and USB-RS485 dongle (those cheap ~2$ from ali works fine)
*
* Register descriptions (not all, only those that are being read):
*
* /----------------------------------- Register address
* | /-------------------------- Registers count
* | | /---------------------- Datatype and size
* | | | /----------------- Resolution (or multiplier)
* | | | | /---------- Unit
* | | | | | /---- Description
* 0x0130 1 U16 0.01 Hz Frequency
* 0x0131 1 U16 0.01 V Voltage
* 0x0139 2 U32 0.001 A Current
* 0x0140 2 U32 0.001 kW Active power
* 0x0148 2 U32 0.001 kvar Reactive power
* 0x0150 2 U32 0.001 kVA Apparent power
* 0x0158 1 S16 0.001 - Power factor
* 0xA000 2 U32 0.01 kWh Active energy imported
* 0xA01E 2 U32 0.01 kvarh Reactive energy imported
*
* Datatype: S = signed int, U = unsigend int,
* U32 - the first (lower) register contains high word,
* second register contains lower word of 32bit dword:
* value_32bit = (register+0)<<16 | (register+1);
* /or/ val32bit = (reg+0)*65536 + (reg+1);
*
* Note about MQTT/JSON: In fields "ENERGY.TotalActive" and "ENERGY.TotalReactive" there are
* counters values directly from the meter (without Tasmota calculation,
* energy used calculated by Tasmota is in Total/Today fields ).
* Filed "ENERGY.Period" is always zero.
\*********************************************************************************************/
#define XNRG_13 13
// can be user defined in my_user_config.h
#ifndef LE01MR_SPEED
#define LE01MR_SPEED 2400 // default LE01MR Modbus speed
#endif
// can be user defined in my_user_config.h
#ifndef LE01MR_ADDR
#define LE01MR_ADDR 1 // default LE01MR Modbus address
#endif
#include <TasmotaModbus.h>
TasmotaModbus *FifLEModbus;
const uint8_t le01mr_table_sz = 9;
const uint16_t le01mr_register_addresses[] {
// IDX (reg count/datatype) [unit]
0x0130, // 00 . LE01MR_FREQUENCY (1/U16) [Hz]
0x0131, // 01 . LE01MR_VOLTAGE (1/U16) [V]
0x0158, // 02 . LE01MR_POWER_FACTOR (1/S16)
0x0139, // 03 . LE01MR_CURRENT (2/U32) [A]
0x0140, // 04 . LE01MR_ACTIVE_POWER (2/U32) [kW]
0x0148, // 05 . LE01MR_REACTIVE_POWER (2/U32) [kvar]
0x0150, // 06 . LE01MR_APPARENT_POWER (2/U32) [kVA]
0xA000, // 07 . LE01MR_TOTAL_ACTIVE_ENERGY (2/U32) [kWh]
0xA01E // 08 . LE01MR_TOTAL_REACTIVE_ENERGY (2/U32) [kvarh]
};
struct LE01MR {
float total_active = 0;
float total_reactive = 0;
uint8_t read_state = 0;
uint8_t send_retry = 0;
uint8_t start_address_count = le01mr_table_sz;
} Le01mr;
/*********************************************************************************************/
void FifLEEvery250ms(void)
{
bool data_ready = FifLEModbus->ReceiveReady();
if (data_ready) {
uint8_t buffer[14]; // At least 9
uint8_t reg_count = 2;
if (Le01mr.read_state < 3) {
reg_count=1;
}
uint32_t error = FifLEModbus->ReceiveBuffer(buffer, reg_count);
AddLogBuffer(LOG_LEVEL_DEBUG_MORE, buffer, FifLEModbus->ReceiveCount());
if (error) {
AddLog_P2(LOG_LEVEL_DEBUG, PSTR("FiF-LE: LE01MR Modbus error %d"), error);
} else {
Energy.data_valid[0] = 0;
// SA=Slave Address, FC=Function Code, BC=Byte Count, B3..B0=Data byte, Ch Cl = crc16 checksum
// U32 registers:
// 00 01 02 03 04 05 06 07 08
// SA FC BC B3 B2 B1 B0 Cl Ch
// 01 03 04 00 00 00 72 7A 16 = REG[B3..B2=0x0139,B1..B0=0x013A] 114 = 0.114 A
// 01 03 04 00 00 00 B0 FB 87 = REG[B3..B2=0xA01E,B1..B0=0xA01F] 176 = 1.76 kvarh
// U16/S16 registers:
// 00 01 02 03 04 05 06
// SA FC BC B1 B0 Cl Ch
// 01 03 02 5B 02 02 B5 = REG[B1..B0=0x0131] 23298 = 232.98 V
// 01 03 02 03 E8 B8 FA = REG[B1..B0=0x0158] 1000 = 1.000 (power factor)
// there are 3 data types used:
// U16 - uint16_t
// U32 - uint32_t
// S16 - int16_t
// everything drop into uint32 value, but depending on register ther will be 2 or 4 bytes
uint32_t value_buff = 0;
// for register table items 0..2 use 2 bytes (U16)
if (Le01mr.read_state >= 0 && Le01mr.read_state < 3) { //
value_buff = ((uint32_t)buffer[3])<<8 | buffer[4];
} else {
value_buff = ((uint32_t)buffer[3])<<24 | ((uint32_t)buffer[4])<<16 | ((uint32_t)buffer[5])<<8 | buffer[6];
}
switch(Le01mr.read_state) {
case 0:
Energy.frequency[0] = value_buff * 0.01f; // 5000 => 50.00
break;
case 1:
Energy.voltage[0] = value_buff * 0.01f; // 23298 => 232.98 V
break;
case 2:
Energy.power_factor[0] = ((int16_t)value_buff) * 0.001f; // 1000 => 1.000 //note: I never saw this negative...
break;
case 3:
Energy.current[0] = value_buff * 0.001f; // 114 => 0.114 A
break;
case 4:
Energy.active_power[0] = value_buff * 1.0f; // P [W]
break;
case 5:
Energy.reactive_power[0] = value_buff * 1.0f; // Q [var]
break;
case 6:
Energy.apparent_power[0] = value_buff * 1.0f; // S [VA]
break;
case 7:
Le01mr.total_active = value_buff * 0.01f; // [kWh]
break;
case 8:
Le01mr.total_reactive = value_buff * 0.01f; // [kvarh] 176 => 1.76
break;
}
Le01mr.read_state++;
if (Le01mr.read_state == Le01mr.start_address_count) {
Le01mr.read_state = 0;
EnergyUpdateTotal(Le01mr.total_active, true);
}
}
} // end data ready
if (0 == Le01mr.send_retry || data_ready) {
uint8_t reg_count = 2;
Le01mr.send_retry = 5;
// some registers are 1reg in size
if (Le01mr.read_state < 3) reg_count=1;
// send request
FifLEModbus->Send(LE01MR_ADDR, 0x03, le01mr_register_addresses[Le01mr.read_state], reg_count);
} else {
Le01mr.send_retry--;
}
}
void FifLESnsInit(void)
{
FifLEModbus = new TasmotaModbus(pin[GPIO_LE01MR_RX], pin[GPIO_LE01MR_TX]);
uint8_t result = FifLEModbus->Begin(LE01MR_SPEED);
if (result) {
if (2 == result) { ClaimSerial(); }
} else {
energy_flg = ENERGY_NONE;
}
}
void FifLEDrvInit(void)
{
if ((pin[GPIO_LE01MR_RX] < 99) && (pin[GPIO_LE01MR_TX] < 99)) {
energy_flg = XNRG_13;
}
}
void FifLEReset(void)
{
Le01mr.total_active = 0;
Le01mr.total_reactive = 0;
}
#ifdef USE_WEBSERVER
const char HTTP_ENERGY_LE01MR[] PROGMEM =
"{s}" D_TOTAL_ACTIVE "{m}%s " D_UNIT_KILOWATTHOUR "{e}"
"{s}" D_TOTAL_REACTIVE "{m}%s " D_UNIT_KWARH "{e}"
;
#endif // USE_WEBSERVER
void FifLEShow(bool json)
{
char total_reactive_chr[FLOATSZ];
dtostrfd(Le01mr.total_reactive, Settings.flag2.energy_resolution, total_reactive_chr);
char total_active_chr[FLOATSZ];
dtostrfd(Le01mr.total_active, Settings.flag2.energy_resolution, total_active_chr);
if (json) {
ResponseAppend_P(PSTR(",\"" D_JSON_TOTAL_ACTIVE "\":%s,\"" D_JSON_TOTAL_REACTIVE "\":%s"),
total_active_chr, total_reactive_chr);
#ifdef USE_WEBSERVER
} else {
WSContentSend_PD(HTTP_ENERGY_LE01MR, total_active_chr, total_reactive_chr);
#endif // USE_WEBSERVER
}
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xnrg13(uint8_t function)
{
bool result = false;
switch (function) {
case FUNC_EVERY_250_MSECOND:
if (uptime > 4) {
FifLEEvery250ms();
}
break;
case FUNC_JSON_APPEND:
FifLEShow(1);
break;
#ifdef USE_WEBSERVER
case FUNC_WEB_SENSOR:
FifLEShow(0);
break;
#endif // USE_WEBSERVER
case FUNC_ENERGY_RESET:
FifLEReset();
break;
case FUNC_INIT:
FifLESnsInit();
break;
case FUNC_PRE_INIT:
FifLEDrvInit();
break;
}
return result;
}
#endif // USE_LE01MR
#endif // USE_ENERGY_SENSOR
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