src/charging-station/ocpp/1.6/OCPP16RequestService.ts

   1 import { ACElectricUtils, DCElectricUtils } from '../../../utils/ElectricUtils';
   2 import { AuthorizeRequest, OCPP16AuthorizeResponse, OCPP16StartTransactionResponse, OCPP16StopTransactionReason, OCPP16StopTransactionResponse, StartTransactionRequest, StopTransactionRequest } from '../../../types/ocpp/1.6/Transaction';
   3 import { CurrentOutType, VoltageOut } from '../../../types/ChargingStationTemplate';
   4 import { HeartbeatRequest, OCPP16BootNotificationRequest, OCPP16IncomingRequestCommand, OCPP16RequestCommand, StatusNotificationRequest } from '../../../types/ocpp/1.6/Requests';
   5 import { MeterValueUnit, MeterValuesRequest, OCPP16MeterValue, OCPP16MeterValueMeasurand, OCPP16MeterValuePhase } from '../../../types/ocpp/1.6/MeterValues';
   6
   7 import Constants from '../../../utils/Constants';
   8 import MeasurandPerPhaseSampledValueTemplates from '../../../types/MeasurandPerPhaseSampledValueTemplates';
   9 import MeasurandValues from '../../../types/MeasurandValues';
  10 import { MessageType } from '../../../types/ocpp/MessageType';
  11 import { OCPP16BootNotificationResponse } from '../../../types/ocpp/1.6/Responses';
  12 import { OCPP16ChargePointErrorCode } from '../../../types/ocpp/1.6/ChargePointErrorCode';
  13 import { OCPP16ChargePointStatus } from '../../../types/ocpp/1.6/ChargePointStatus';
  14 import { OCPP16ServiceUtils } from './OCPP16ServiceUtils';
  15 import OCPPError from '../../OcppError';
  16 import OCPPRequestService from '../OCPPRequestService';
  17 import Utils from '../../../utils/Utils';
  18 import logger from '../../../utils/Logger';
  19
  20 export default class OCPP16RequestService extends OCPPRequestService {
  21   public async sendHeartbeat(): Promise<void> {
  22     try {
  23       const payload: HeartbeatRequest = {};
  24       await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.HEARTBEAT);
  25     } catch (error) {
  26       this.handleRequestError(OCPP16RequestCommand.HEARTBEAT, error);
  27     }
  28   }
  29
  30   public async sendBootNotification(chargePointModel: string, chargePointVendor: string, chargeBoxSerialNumber?: string, firmwareVersion?: string,
  31       chargePointSerialNumber?: string, iccid?: string, imsi?: string, meterSerialNumber?: string, meterType?: string): Promise<OCPP16BootNotificationResponse> {
  32     try {
  33       const payload: OCPP16BootNotificationRequest = {
  34         chargePointModel,
  35         chargePointVendor,
  36         ...!Utils.isUndefined(chargeBoxSerialNumber) && { chargeBoxSerialNumber },
  37         ...!Utils.isUndefined(chargePointSerialNumber) && { chargePointSerialNumber },
  38         ...!Utils.isUndefined(firmwareVersion) && { firmwareVersion },
  39         ...!Utils.isUndefined(iccid) && { iccid },
  40         ...!Utils.isUndefined(imsi) && { imsi },
  41         ...!Utils.isUndefined(meterSerialNumber) && { meterSerialNumber },
  42         ...!Utils.isUndefined(meterType) && { meterType }
  43       };
  44       return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.BOOT_NOTIFICATION) as OCPP16BootNotificationResponse;
  45     } catch (error) {
  46       this.handleRequestError(OCPP16RequestCommand.BOOT_NOTIFICATION, error);
  47     }
  48   }
  49
  50   public async sendStatusNotification(connectorId: number, status: OCPP16ChargePointStatus,
  51       errorCode: OCPP16ChargePointErrorCode = OCPP16ChargePointErrorCode.NO_ERROR): Promise<void> {
  52     try {
  53       const payload: StatusNotificationRequest = {
  54         connectorId,
  55         errorCode,
  56         status,
  57       };
  58       await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.STATUS_NOTIFICATION);
  59     } catch (error) {
  60       this.handleRequestError(OCPP16RequestCommand.STATUS_NOTIFICATION, error);
  61     }
  62   }
  63
  64   public async sendAuthorize(idTag?: string): Promise<OCPP16AuthorizeResponse> {
  65     try {
  66       const payload: AuthorizeRequest = {
  67         ...!Utils.isUndefined(idTag) ? { idTag } : { idTag: Constants.TRANSACTION_DEFAULT_IDTAG },
  68       };
  69       return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.AUTHORIZE) as OCPP16AuthorizeResponse;
  70     } catch (error) {
  71       this.handleRequestError(OCPP16RequestCommand.AUTHORIZE, error);
  72     }
  73   }
  74
  75   public async sendStartTransaction(connectorId: number, idTag?: string): Promise<OCPP16StartTransactionResponse> {
  76     try {
  77       const payload: StartTransactionRequest = {
  78         connectorId,
  79         ...!Utils.isUndefined(idTag) ? { idTag } : { idTag: Constants.TRANSACTION_DEFAULT_IDTAG },
  80         meterStart: this.chargingStation.getEnergyActiveImportRegisterByConnectorId(connectorId),
  81         timestamp: new Date().toISOString(),
  82       };
  83       return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.START_TRANSACTION) as OCPP16StartTransactionResponse;
  84     } catch (error) {
  85       this.handleRequestError(OCPP16RequestCommand.START_TRANSACTION, error);
  86     }
  87   }
  88
  89   public async sendStopTransaction(transactionId: number, meterStop: number, idTag?: string,
  90       reason: OCPP16StopTransactionReason = OCPP16StopTransactionReason.NONE): Promise<OCPP16StopTransactionResponse> {
  91     try {
  92       let connectorId: number;
  93       for (const connector in this.chargingStation.connectors) {
  94         if (Utils.convertToInt(connector) > 0 && this.chargingStation.getConnector(Utils.convertToInt(connector))?.transactionId === transactionId) {
  95           connectorId = Utils.convertToInt(connector);
  96         }
  97       }
  98       const transactionEndMeterValue = OCPP16ServiceUtils.buildTransactionEndMeterValue(this.chargingStation, connectorId, meterStop);
  99       // FIXME: should be a callback, each OCPP commands implementation must do only one job
 100       (this.chargingStation.getBeginEndMeterValues() && !this.chargingStation.getOutOfOrderEndMeterValues())
 101         && await this.sendTransactionEndMeterValues(connectorId, transactionId, transactionEndMeterValue);
 102       const payload: StopTransactionRequest = {
 103         transactionId,
 104         ...!Utils.isUndefined(idTag) && { idTag },
 105         meterStop,
 106         timestamp: new Date().toISOString(),
 107         ...reason && { reason },
 108         ...this.chargingStation.getTransactionDataMeterValues() && { transactionData: OCPP16ServiceUtils.buildTransactionDataMeterValues(this.chargingStation.getConnector(connectorId).transactionBeginMeterValue, transactionEndMeterValue) },
 109       };
 110       return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.STOP_TRANSACTION) as OCPP16StartTransactionResponse;
 111     } catch (error) {
 112       this.handleRequestError(OCPP16RequestCommand.STOP_TRANSACTION, error);
 113     }
 114   }
 115
 116   // eslint-disable-next-line consistent-this
 117   public async sendMeterValues(connectorId: number, transactionId: number, interval: number, self: OCPPRequestService, debug = false): Promise<void> {
 118     try {
 119       const meterValue: OCPP16MeterValue = {
 120         timestamp: new Date().toISOString(),
 121         sampledValue: [],
 122       };
 123       const connector = self.chargingStation.getConnector(connectorId);
 124       // SoC measurand
 125       const socSampledValueTemplate = self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.STATE_OF_CHARGE);
 126       if (socSampledValueTemplate) {
 127         meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(socSampledValueTemplate, Utils.getRandomInt(100)));
 128         const sampledValuesIndex = meterValue.sampledValue.length - 1;
 129         if (Utils.convertToInt(meterValue.sampledValue[sampledValuesIndex].value) > 100 || debug) {
 130           logger.error(`${self.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/100`);
 131         }
 132       }
 133       // Voltage measurand
 134       const voltageSampledValueTemplate = self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.VOLTAGE);
 135       if (voltageSampledValueTemplate) {
 136         const voltageSampledValueTemplateValue = voltageSampledValueTemplate.value ? parseInt(voltageSampledValueTemplate.value) : self.chargingStation.getVoltageOut();
 137         const fluctuationPercent = voltageSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT;
 138         const voltageMeasurandValue = Utils.getRandomFloatFluctuatedRounded(voltageSampledValueTemplateValue, fluctuationPercent);
 139         if (self.chargingStation.getNumberOfPhases() !== 3 || (self.chargingStation.getNumberOfPhases() === 3 && self.chargingStation.getMainVoltageMeterValues())) {
 140           meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(voltageSampledValueTemplate, voltageMeasurandValue));
 141         }
 142         const defaultVoltagePhaseLineToLineMeasurandValue = Utils.getRandomFloatFluctuatedRounded(VoltageOut.VOLTAGE_400, fluctuationPercent);
 143         for (let phase = 1; self.chargingStation.getNumberOfPhases() === 3 && phase <= self.chargingStation.getNumberOfPhases(); phase++) {
 144           const phaseLineToNeutralValue = `L${phase}-N`;
 145           const voltagePhaseLineToNeutralSampledValueTemplate = self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.VOLTAGE,
 146             phaseLineToNeutralValue as OCPP16MeterValuePhase);
 147           let voltagePhaseLineToNeutralMeasurandValue: number;
 148           if (voltagePhaseLineToNeutralSampledValueTemplate) {
 149             const voltagePhaseLineToNeutralSampledValueTemplateValue = voltagePhaseLineToNeutralSampledValueTemplate.value ? parseInt(voltagePhaseLineToNeutralSampledValueTemplate.value) : self.chargingStation.getVoltageOut();
 150             const fluctuationPhaseToNeutralPercent = voltagePhaseLineToNeutralSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT;
 151             voltagePhaseLineToNeutralMeasurandValue = Utils.getRandomFloatFluctuatedRounded(voltagePhaseLineToNeutralSampledValueTemplateValue, fluctuationPhaseToNeutralPercent);
 152           }
 153           meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(voltagePhaseLineToNeutralSampledValueTemplate ?? voltageSampledValueTemplate,
 154             voltagePhaseLineToNeutralMeasurandValue ?? voltageMeasurandValue, null, phaseLineToNeutralValue as OCPP16MeterValuePhase));
 155           const phaseLineToLineValue = `L${phase}-L${(phase + 1) % self.chargingStation.getNumberOfPhases() !== 0 ? (phase + 1) % self.chargingStation.getNumberOfPhases() : self.chargingStation.getNumberOfPhases()}`;
 156           const voltagePhaseLineToLineSampledValueTemplate = self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.VOLTAGE, phaseLineToLineValue as OCPP16MeterValuePhase);
 157           let voltagePhaseLineToLineMeasurandValue: number;
 158           if (voltagePhaseLineToLineSampledValueTemplate) {
 159             const voltagePhaseLineToLineSampledValueTemplateValue = voltagePhaseLineToLineSampledValueTemplate.value ? parseInt(voltagePhaseLineToLineSampledValueTemplate.value) : VoltageOut.VOLTAGE_400;
 160             const fluctuationPhaseLineToLinePercent = voltagePhaseLineToLineSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT;
 161             voltagePhaseLineToLineMeasurandValue = Utils.getRandomFloatFluctuatedRounded(voltagePhaseLineToLineSampledValueTemplateValue, fluctuationPhaseLineToLinePercent);
 162           }
 163           meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(voltagePhaseLineToLineSampledValueTemplate ?? voltageSampledValueTemplate,
 164             voltagePhaseLineToLineMeasurandValue ?? defaultVoltagePhaseLineToLineMeasurandValue, null, phaseLineToLineValue as OCPP16MeterValuePhase));
 165         }
 166       }
 167       // Power.Active.Import measurand
 168       const powerSampledValueTemplate = self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT);
 169       let powerPerPhaseSampledValueTemplates: MeasurandPerPhaseSampledValueTemplates = {};
 170       if (self.chargingStation.getNumberOfPhases() === 3) {
 171         powerPerPhaseSampledValueTemplates = {
 172           L1: self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT, OCPP16MeterValuePhase.L1_N),
 173           L2: self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT, OCPP16MeterValuePhase.L2_N),
 174           L3: self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT, OCPP16MeterValuePhase.L3_N),
 175         };
 176       }
 177       if (powerSampledValueTemplate) {
 178         OCPP16ServiceUtils.checkMeasurandPowerDivider(self.chargingStation, powerSampledValueTemplate.measurand);
 179         const errMsg = `${self.chargingStation.logPrefix()} MeterValues measurand ${powerSampledValueTemplate.measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: Unknown ${self.chargingStation.getCurrentOutType()} currentOutType in template file ${self.chargingStation.stationTemplateFile}, cannot calculate ${powerSampledValueTemplate.measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER} measurand value`;
 180         const powerMeasurandValues = {} as MeasurandValues;
 181         const unitDivider = powerSampledValueTemplate?.unit === MeterValueUnit.KILO_WATT ? 1000 : 1;
 182         const maxPower = Math.round(self.chargingStation.stationInfo.maxPower / self.chargingStation.stationInfo.powerDivider);
 183         const maxPowerPerPhase = Math.round((self.chargingStation.stationInfo.maxPower / self.chargingStation.stationInfo.powerDivider) / self.chargingStation.getNumberOfPhases());
 184         switch (self.chargingStation.getCurrentOutType()) {
 185           case CurrentOutType.AC:
 186             if (self.chargingStation.getNumberOfPhases() === 3) {
 187               const defaultFluctuatedPowerPerPhase = powerSampledValueTemplate.value
 188                 && Utils.getRandomFloatFluctuatedRounded(parseInt(powerSampledValueTemplate.value) / self.chargingStation.getNumberOfPhases(), powerSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 189               const phase1FluctuatedValue = powerPerPhaseSampledValueTemplates?.L1?.value
 190                 && Utils.getRandomFloatFluctuatedRounded(parseInt(powerPerPhaseSampledValueTemplates.L1.value), powerPerPhaseSampledValueTemplates.L1.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 191               const phase2FluctuatedValue = powerPerPhaseSampledValueTemplates?.L2?.value
 192                 && Utils.getRandomFloatFluctuatedRounded(parseInt(powerPerPhaseSampledValueTemplates.L2.value), powerPerPhaseSampledValueTemplates.L2.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 193               const phase3FluctuatedValue = powerPerPhaseSampledValueTemplates?.L3?.value
 194                 && Utils.getRandomFloatFluctuatedRounded(parseInt(powerPerPhaseSampledValueTemplates.L3.value), powerPerPhaseSampledValueTemplates.L3.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 195               powerMeasurandValues.L1 = (phase1FluctuatedValue ?? defaultFluctuatedPowerPerPhase) ?? Utils.getRandomFloatRounded(maxPowerPerPhase / unitDivider);
 196               powerMeasurandValues.L2 = (phase2FluctuatedValue ?? defaultFluctuatedPowerPerPhase) ?? Utils.getRandomFloatRounded(maxPowerPerPhase / unitDivider);
 197               powerMeasurandValues.L3 = (phase3FluctuatedValue ?? defaultFluctuatedPowerPerPhase) ?? Utils.getRandomFloatRounded(maxPowerPerPhase / unitDivider);
 198             } else {
 199               powerMeasurandValues.L1 = powerSampledValueTemplate.value
 200                 ? Utils.getRandomFloatFluctuatedRounded(parseInt(powerSampledValueTemplate.value), powerSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 201                 : Utils.getRandomFloatRounded(maxPower / unitDivider);
 202               powerMeasurandValues.L2 = 0;
 203               powerMeasurandValues.L3 = 0;
 204             }
 205             powerMeasurandValues.allPhases = Utils.roundTo(powerMeasurandValues.L1 + powerMeasurandValues.L2 + powerMeasurandValues.L3, 2);
 206             break;
 207           case CurrentOutType.DC:
 208             powerMeasurandValues.allPhases = powerSampledValueTemplate.value
 209               ? Utils.getRandomFloatFluctuatedRounded(parseInt(powerSampledValueTemplate.value), powerSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 210               : Utils.getRandomFloatRounded(maxPower / unitDivider);
 211             break;
 212           default:
 213             logger.error(errMsg);
 214             throw Error(errMsg);
 215         }
 216         meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(powerSampledValueTemplate, powerMeasurandValues.allPhases));
 217         const sampledValuesIndex = meterValue.sampledValue.length - 1;
 218         const maxPowerRounded = Utils.roundTo(maxPower / unitDivider, 2);
 219         if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxPowerRounded || debug) {
 220           logger.error(`${self.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/${maxPowerRounded}`);
 221         }
 222         for (let phase = 1; self.chargingStation.getNumberOfPhases() === 3 && phase <= self.chargingStation.getNumberOfPhases(); phase++) {
 223           const phaseValue = `L${phase}-N`;
 224           meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(powerPerPhaseSampledValueTemplates[`L${phase}`] ?? powerSampledValueTemplate, powerMeasurandValues[`L${phase}`], null,
 225             phaseValue as OCPP16MeterValuePhase));
 226           const sampledValuesPerPhaseIndex = meterValue.sampledValue.length - 1;
 227           const maxPowerPerPhaseRounded = Utils.roundTo(maxPowerPerPhase / unitDivider, 2);
 228           if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesPerPhaseIndex].value) > maxPowerPerPhaseRounded || debug) {
 229             logger.error(`${self.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesPerPhaseIndex].measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: phase ${meterValue.sampledValue[sampledValuesPerPhaseIndex].phase}, connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesPerPhaseIndex].value}/${maxPowerPerPhaseRounded}`);
 230           }
 231         }
 232       }
 233       // Current.Import measurand
 234       const currentSampledValueTemplate = self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.CURRENT_IMPORT);
 235       let currentPerPhaseSampledValueTemplates: MeasurandPerPhaseSampledValueTemplates = {};
 236       if (self.chargingStation.getNumberOfPhases() === 3) {
 237         currentPerPhaseSampledValueTemplates = {
 238           L1: self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.CURRENT_IMPORT, OCPP16MeterValuePhase.L1),
 239           L2: self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.CURRENT_IMPORT, OCPP16MeterValuePhase.L2),
 240           L3: self.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.CURRENT_IMPORT, OCPP16MeterValuePhase.L3),
 241         };
 242       }
 243       if (currentSampledValueTemplate) {
 244         OCPP16ServiceUtils.checkMeasurandPowerDivider(self.chargingStation, currentSampledValueTemplate.measurand);
 245         const errMsg = `${self.chargingStation.logPrefix()} MeterValues measurand ${currentSampledValueTemplate.measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: Unknown ${self.chargingStation.getCurrentOutType()} currentOutType in template file ${self.chargingStation.stationTemplateFile}, cannot calculate ${currentSampledValueTemplate.measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER} measurand value`;
 246         const currentMeasurandValues: MeasurandValues = {} as MeasurandValues;
 247         let maxAmperage: number;
 248         switch (self.chargingStation.getCurrentOutType()) {
 249           case CurrentOutType.AC:
 250             maxAmperage = ACElectricUtils.amperagePerPhaseFromPower(self.chargingStation.getNumberOfPhases(), self.chargingStation.stationInfo.maxPower / self.chargingStation.stationInfo.powerDivider, self.chargingStation.getVoltageOut());
 251             if (self.chargingStation.getNumberOfPhases() === 3) {
 252               const defaultFluctuatedAmperagePerPhase = currentSampledValueTemplate.value
 253                 && Utils.getRandomFloatFluctuatedRounded(parseInt(currentSampledValueTemplate.value), currentSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 254               const phase1FluctuatedValue = currentPerPhaseSampledValueTemplates?.L1?.value
 255                 && Utils.getRandomFloatFluctuatedRounded(parseInt(currentPerPhaseSampledValueTemplates.L1.value), currentPerPhaseSampledValueTemplates.L1.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 256               const phase2FluctuatedValue = currentPerPhaseSampledValueTemplates?.L2?.value
 257                 && Utils.getRandomFloatFluctuatedRounded(parseInt(currentPerPhaseSampledValueTemplates.L2.value), currentPerPhaseSampledValueTemplates.L2.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 258               const phase3FluctuatedValue = currentPerPhaseSampledValueTemplates?.L3?.value
 259                 && Utils.getRandomFloatFluctuatedRounded(parseInt(currentPerPhaseSampledValueTemplates.L3.value), currentPerPhaseSampledValueTemplates.L3.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 260               currentMeasurandValues.L1 = (phase1FluctuatedValue ?? defaultFluctuatedAmperagePerPhase) ?? Utils.getRandomFloatRounded(maxAmperage);
 261               currentMeasurandValues.L2 = (phase2FluctuatedValue ?? defaultFluctuatedAmperagePerPhase) ?? Utils.getRandomFloatRounded(maxAmperage);
 262               currentMeasurandValues.L3 = (phase3FluctuatedValue ?? defaultFluctuatedAmperagePerPhase) ?? Utils.getRandomFloatRounded(maxAmperage);
 263             } else {
 264               currentMeasurandValues.L1 = currentSampledValueTemplate.value
 265                 ? Utils.getRandomFloatFluctuatedRounded(parseInt(currentSampledValueTemplate.value), currentSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 266                 : Utils.getRandomFloatRounded(maxAmperage);
 267               currentMeasurandValues.L2 = 0;
 268               currentMeasurandValues.L3 = 0;
 269             }
 270             currentMeasurandValues.allPhases = Utils.roundTo((currentMeasurandValues.L1 + currentMeasurandValues.L2 + currentMeasurandValues.L3) / self.chargingStation.getNumberOfPhases(), 2);
 271             break;
 272           case CurrentOutType.DC:
 273             maxAmperage = DCElectricUtils.amperage(self.chargingStation.stationInfo.maxPower / self.chargingStation.stationInfo.powerDivider, self.chargingStation.getVoltageOut());
 274             currentMeasurandValues.allPhases = currentSampledValueTemplate.value
 275               ? Utils.getRandomFloatFluctuatedRounded(parseInt(currentSampledValueTemplate.value), currentSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 276               : Utils.getRandomFloatRounded(maxAmperage);
 277             break;
 278           default:
 279             logger.error(errMsg);
 280             throw Error(errMsg);
 281         }
 282         meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(currentSampledValueTemplate, currentMeasurandValues.allPhases));
 283         const sampledValuesIndex = meterValue.sampledValue.length - 1;
 284         if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxAmperage || debug) {
 285           logger.error(`${self.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/${maxAmperage}`);
 286         }
 287         for (let phase = 1; self.chargingStation.getNumberOfPhases() === 3 && phase <= self.chargingStation.getNumberOfPhases(); phase++) {
 288           const phaseValue = `L${phase}`;
 289           meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(currentPerPhaseSampledValueTemplates[phaseValue] ?? currentSampledValueTemplate,
 290             currentMeasurandValues[phaseValue], null, phaseValue as OCPP16MeterValuePhase));
 291           const sampledValuesPerPhaseIndex = meterValue.sampledValue.length - 1;
 292           if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesPerPhaseIndex].value) > maxAmperage || debug) {
 293             logger.error(`${self.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesPerPhaseIndex].measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: phase ${meterValue.sampledValue[sampledValuesPerPhaseIndex].phase}, connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesPerPhaseIndex].value}/${maxAmperage}`);
 294           }
 295         }
 296       }
 297       // Energy.Active.Import.Register measurand (default)
 298       const energySampledValueTemplate = self.chargingStation.getSampledValueTemplate(connectorId);
 299       if (energySampledValueTemplate) {
 300         OCPP16ServiceUtils.checkMeasurandPowerDivider(self.chargingStation, energySampledValueTemplate.measurand);
 301         const unitDivider = energySampledValueTemplate?.unit === MeterValueUnit.KILO_WATT_HOUR ? 1000 : 1;
 302         const energyMeasurandValue = energySampledValueTemplate.value
 303           // Cumulate the fluctuated value around the static one
 304           ? Utils.getRandomFloatFluctuatedRounded(parseInt(energySampledValueTemplate.value), energySampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 305           : Utils.getRandomInt(self.chargingStation.stationInfo.maxPower / (self.chargingStation.stationInfo.powerDivider * 3600000) * interval);
 306         // Persist previous value on connector
 307         if (connector && !Utils.isNullOrUndefined(connector.energyActiveImportRegisterValue) && connector.energyActiveImportRegisterValue >= 0 &&
 308             !Utils.isNullOrUndefined(connector.transactionEnergyActiveImportRegisterValue) && connector.transactionEnergyActiveImportRegisterValue >= 0) {
 309           connector.energyActiveImportRegisterValue += energyMeasurandValue;
 310           connector.transactionEnergyActiveImportRegisterValue += energyMeasurandValue;
 311         } else {
 312           connector.energyActiveImportRegisterValue = 0;
 313           connector.transactionEnergyActiveImportRegisterValue = 0;
 314         }
 315         meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(energySampledValueTemplate,
 316           Utils.roundTo(self.chargingStation.getEnergyActiveImportRegisterByTransactionId(transactionId) / unitDivider, 4)));
 317         const sampledValuesIndex = meterValue.sampledValue.length - 1;
 318         const maxEnergy = Math.round(self.chargingStation.stationInfo.maxPower * 3600 / (self.chargingStation.stationInfo.powerDivider * interval));
 319         const maxEnergyRounded = Utils.roundTo(maxEnergy / unitDivider, 4);
 320         if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxEnergyRounded || debug) {
 321           logger.error(`${self.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/${maxEnergyRounded}`);
 322         }
 323       }
 324       const payload: MeterValuesRequest = {
 325         connectorId,
 326         transactionId,
 327         meterValue,
 328       };
 329       await self.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.METER_VALUES);
 330     } catch (error) {
 331       self.handleRequestError(OCPP16RequestCommand.METER_VALUES, error);
 332     }
 333   }
 334
 335   public async sendTransactionBeginMeterValues(connectorId: number, transactionId: number, beginMeterValue: OCPP16MeterValue): Promise<void> {
 336     const payload: MeterValuesRequest = {
 337       connectorId,
 338       transactionId,
 339       meterValue: beginMeterValue,
 340     };
 341     await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.METER_VALUES);
 342   }
 343
 344   public async sendTransactionEndMeterValues(connectorId: number, transactionId: number, endMeterValue: OCPP16MeterValue): Promise<void> {
 345     const payload: MeterValuesRequest = {
 346       connectorId,
 347       transactionId,
 348       meterValue: endMeterValue,
 349     };
 350     await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.METER_VALUES);
 351   }
 352
 353   public async sendError(messageId: string, error: OCPPError, commandName: OCPP16RequestCommand | OCPP16IncomingRequestCommand): Promise<unknown> {
 354     // Send error
 355     return this.sendMessage(messageId, error, MessageType.CALL_ERROR_MESSAGE, commandName);
 356   }
 357 }