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 { CurrentType, Voltage } from '../../../types/ChargingStationTemplate';
   4 import { DiagnosticsStatusNotificationRequest, 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 { OCPP16DiagnosticsStatus } from '../../../types/ocpp/1.6/DiagnosticsStatus';
  15 import { OCPP16ServiceUtils } from './OCPP16ServiceUtils';
  16 import OCPPError from '../../OCPPError';
  17 import OCPPRequestService from '../OCPPRequestService';
  18 import Utils from '../../../utils/Utils';
  19 import logger from '../../../utils/Logger';
  20
  21 export default class OCPP16RequestService extends OCPPRequestService {
  22   public async sendHeartbeat(): Promise<void> {
  23     try {
  24       const payload: HeartbeatRequest = {};
  25       await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.HEARTBEAT);
  26     } catch (error) {
  27       this.handleRequestError(OCPP16RequestCommand.HEARTBEAT, error);
  28     }
  29   }
  30
  31   public async sendBootNotification(chargePointModel: string, chargePointVendor: string, chargeBoxSerialNumber?: string, firmwareVersion?: string,
  32       chargePointSerialNumber?: string, iccid?: string, imsi?: string, meterSerialNumber?: string, meterType?: string): Promise<OCPP16BootNotificationResponse> {
  33     try {
  34       const payload: OCPP16BootNotificationRequest = {
  35         chargePointModel,
  36         chargePointVendor,
  37         ...!Utils.isUndefined(chargeBoxSerialNumber) && { chargeBoxSerialNumber },
  38         ...!Utils.isUndefined(chargePointSerialNumber) && { chargePointSerialNumber },
  39         ...!Utils.isUndefined(firmwareVersion) && { firmwareVersion },
  40         ...!Utils.isUndefined(iccid) && { iccid },
  41         ...!Utils.isUndefined(imsi) && { imsi },
  42         ...!Utils.isUndefined(meterSerialNumber) && { meterSerialNumber },
  43         ...!Utils.isUndefined(meterType) && { meterType }
  44       };
  45       return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.BOOT_NOTIFICATION) as OCPP16BootNotificationResponse;
  46     } catch (error) {
  47       this.handleRequestError(OCPP16RequestCommand.BOOT_NOTIFICATION, error);
  48     }
  49   }
  50
  51   public async sendStatusNotification(connectorId: number, status: OCPP16ChargePointStatus,
  52       errorCode: OCPP16ChargePointErrorCode = OCPP16ChargePointErrorCode.NO_ERROR): Promise<void> {
  53     try {
  54       const payload: StatusNotificationRequest = {
  55         connectorId,
  56         errorCode,
  57         status,
  58       };
  59       await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.STATUS_NOTIFICATION);
  60     } catch (error) {
  61       this.handleRequestError(OCPP16RequestCommand.STATUS_NOTIFICATION, error);
  62     }
  63   }
  64
  65   public async sendAuthorize(connectorId: number, idTag?: string): Promise<OCPP16AuthorizeResponse> {
  66     try {
  67       const payload: AuthorizeRequest = {
  68         ...!Utils.isUndefined(idTag) ? { idTag } : { idTag: Constants.TRANSACTION_DEFAULT_IDTAG },
  69       };
  70       this.chargingStation.getConnector(connectorId).authorizeIdTag = idTag;
  71       return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.AUTHORIZE) as OCPP16AuthorizeResponse;
  72     } catch (error) {
  73       this.handleRequestError(OCPP16RequestCommand.AUTHORIZE, error);
  74     }
  75   }
  76
  77   public async sendStartTransaction(connectorId: number, idTag?: string): Promise<OCPP16StartTransactionResponse> {
  78     try {
  79       const payload: StartTransactionRequest = {
  80         connectorId,
  81         ...!Utils.isUndefined(idTag) ? { idTag } : { idTag: Constants.TRANSACTION_DEFAULT_IDTAG },
  82         meterStart: this.chargingStation.getEnergyActiveImportRegisterByConnectorId(connectorId),
  83         timestamp: new Date().toISOString(),
  84       };
  85       return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.START_TRANSACTION) as OCPP16StartTransactionResponse;
  86     } catch (error) {
  87       this.handleRequestError(OCPP16RequestCommand.START_TRANSACTION, error);
  88     }
  89   }
  90
  91   public async sendStopTransaction(transactionId: number, meterStop: number, idTag?: string,
  92       reason: OCPP16StopTransactionReason = OCPP16StopTransactionReason.NONE): Promise<OCPP16StopTransactionResponse> {
  93     try {
  94       let connectorId: number;
  95       for (const connector in this.chargingStation.connectors) {
  96         if (Utils.convertToInt(connector) > 0 && this.chargingStation.getConnector(Utils.convertToInt(connector))?.transactionId === transactionId) {
  97           connectorId = Utils.convertToInt(connector);
  98           break;
  99         }
 100       }
 101       const transactionEndMeterValue = OCPP16ServiceUtils.buildTransactionEndMeterValue(this.chargingStation, connectorId, meterStop);
 102       // FIXME: should be a callback, each OCPP commands implementation must do only one job
 103       (this.chargingStation.getBeginEndMeterValues() && !this.chargingStation.getOutOfOrderEndMeterValues())
 104         && await this.sendTransactionEndMeterValues(connectorId, transactionId, transactionEndMeterValue);
 105       const payload: StopTransactionRequest = {
 106         transactionId,
 107         ...!Utils.isUndefined(idTag) && { idTag },
 108         meterStop,
 109         timestamp: new Date().toISOString(),
 110         ...reason && { reason },
 111         ...this.chargingStation.getTransactionDataMeterValues() && { transactionData: OCPP16ServiceUtils.buildTransactionDataMeterValues(this.chargingStation.getConnector(connectorId).transactionBeginMeterValue, transactionEndMeterValue) },
 112       };
 113       return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.STOP_TRANSACTION) as OCPP16StartTransactionResponse;
 114     } catch (error) {
 115       this.handleRequestError(OCPP16RequestCommand.STOP_TRANSACTION, error);
 116     }
 117   }
 118
 119   // eslint-disable-next-line consistent-this
 120   public async sendMeterValues(connectorId: number, transactionId: number, interval: number, debug = false): Promise<void> {
 121     try {
 122       const meterValue: OCPP16MeterValue = {
 123         timestamp: new Date().toISOString(),
 124         sampledValue: [],
 125       };
 126       const connector = this.chargingStation.getConnector(connectorId);
 127       // SoC measurand
 128       const socSampledValueTemplate = this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.STATE_OF_CHARGE);
 129       if (socSampledValueTemplate) {
 130         const socSampledValueTemplateValue = socSampledValueTemplate.value
 131           ? Utils.getRandomFloatFluctuatedRounded(parseInt(socSampledValueTemplate.value), socSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 132           : Utils.getRandomInt(100);
 133         meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(socSampledValueTemplate, socSampledValueTemplateValue));
 134         const sampledValuesIndex = meterValue.sampledValue.length - 1;
 135         if (Utils.convertToInt(meterValue.sampledValue[sampledValuesIndex].value) > 100 || debug) {
 136           logger.error(`${this.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/100`);
 137         }
 138       }
 139       // Voltage measurand
 140       const voltageSampledValueTemplate = this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.VOLTAGE);
 141       if (voltageSampledValueTemplate) {
 142         const voltageSampledValueTemplateValue = voltageSampledValueTemplate.value ? parseInt(voltageSampledValueTemplate.value) : this.chargingStation.getVoltageOut();
 143         const fluctuationPercent = voltageSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT;
 144         const voltageMeasurandValue = Utils.getRandomFloatFluctuatedRounded(voltageSampledValueTemplateValue, fluctuationPercent);
 145         if (this.chargingStation.getNumberOfPhases() !== 3 || (this.chargingStation.getNumberOfPhases() === 3 && this.chargingStation.getMainVoltageMeterValues())) {
 146           meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(voltageSampledValueTemplate, voltageMeasurandValue));
 147         }
 148         for (let phase = 1; this.chargingStation.getNumberOfPhases() === 3 && phase <= this.chargingStation.getNumberOfPhases(); phase++) {
 149           const phaseLineToNeutralValue = `L${phase}-N`;
 150           const voltagePhaseLineToNeutralSampledValueTemplate = this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.VOLTAGE,
 151             phaseLineToNeutralValue as OCPP16MeterValuePhase);
 152           let voltagePhaseLineToNeutralMeasurandValue: number;
 153           if (voltagePhaseLineToNeutralSampledValueTemplate) {
 154             const voltagePhaseLineToNeutralSampledValueTemplateValue = voltagePhaseLineToNeutralSampledValueTemplate.value ? parseInt(voltagePhaseLineToNeutralSampledValueTemplate.value) : this.chargingStation.getVoltageOut();
 155             const fluctuationPhaseToNeutralPercent = voltagePhaseLineToNeutralSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT;
 156             voltagePhaseLineToNeutralMeasurandValue = Utils.getRandomFloatFluctuatedRounded(voltagePhaseLineToNeutralSampledValueTemplateValue, fluctuationPhaseToNeutralPercent);
 157           }
 158           meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(voltagePhaseLineToNeutralSampledValueTemplate ?? voltageSampledValueTemplate,
 159             voltagePhaseLineToNeutralMeasurandValue ?? voltageMeasurandValue, null, phaseLineToNeutralValue as OCPP16MeterValuePhase));
 160           if (this.chargingStation.getPhaseLineToLineVoltageMeterValues()) {
 161             const phaseLineToLineValue = `L${phase}-L${(phase + 1) % this.chargingStation.getNumberOfPhases() !== 0 ? (phase + 1) % this.chargingStation.getNumberOfPhases() : this.chargingStation.getNumberOfPhases()}`;
 162             const voltagePhaseLineToLineSampledValueTemplate = this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.VOLTAGE, phaseLineToLineValue as OCPP16MeterValuePhase);
 163             let voltagePhaseLineToLineMeasurandValue: number;
 164             if (voltagePhaseLineToLineSampledValueTemplate) {
 165               const voltagePhaseLineToLineSampledValueTemplateValue = voltagePhaseLineToLineSampledValueTemplate.value ? parseInt(voltagePhaseLineToLineSampledValueTemplate.value) : Voltage.VOLTAGE_400;
 166               const fluctuationPhaseLineToLinePercent = voltagePhaseLineToLineSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT;
 167               voltagePhaseLineToLineMeasurandValue = Utils.getRandomFloatFluctuatedRounded(voltagePhaseLineToLineSampledValueTemplateValue, fluctuationPhaseLineToLinePercent);
 168             }
 169             const defaultVoltagePhaseLineToLineMeasurandValue = Utils.getRandomFloatFluctuatedRounded(Voltage.VOLTAGE_400, fluctuationPercent);
 170             meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(voltagePhaseLineToLineSampledValueTemplate ?? voltageSampledValueTemplate,
 171               voltagePhaseLineToLineMeasurandValue ?? defaultVoltagePhaseLineToLineMeasurandValue, null, phaseLineToLineValue as OCPP16MeterValuePhase));
 172           }
 173         }
 174       }
 175       // Power.Active.Import measurand
 176       const powerSampledValueTemplate = this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT);
 177       let powerPerPhaseSampledValueTemplates: MeasurandPerPhaseSampledValueTemplates = {};
 178       if (this.chargingStation.getNumberOfPhases() === 3) {
 179         powerPerPhaseSampledValueTemplates = {
 180           L1: this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT, OCPP16MeterValuePhase.L1_N),
 181           L2: this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT, OCPP16MeterValuePhase.L2_N),
 182           L3: this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT, OCPP16MeterValuePhase.L3_N),
 183         };
 184       }
 185       if (powerSampledValueTemplate) {
 186         OCPP16ServiceUtils.checkMeasurandPowerDivider(this.chargingStation, powerSampledValueTemplate.measurand);
 187         const errMsg = `${this.chargingStation.logPrefix()} MeterValues measurand ${powerSampledValueTemplate.measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: Unknown ${this.chargingStation.getCurrentOutType()} currentOutType in template file ${this.chargingStation.stationTemplateFile}, cannot calculate ${powerSampledValueTemplate.measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER} measurand value`;
 188         const powerMeasurandValues = {} as MeasurandValues;
 189         const unitDivider = powerSampledValueTemplate?.unit === MeterValueUnit.KILO_WATT ? 1000 : 1;
 190         const maxPower = Math.round(this.chargingStation.stationInfo.maxPower / this.chargingStation.stationInfo.powerDivider);
 191         const maxPowerPerPhase = Math.round((this.chargingStation.stationInfo.maxPower / this.chargingStation.stationInfo.powerDivider) / this.chargingStation.getNumberOfPhases());
 192         switch (this.chargingStation.getCurrentOutType()) {
 193           case CurrentType.AC:
 194             if (this.chargingStation.getNumberOfPhases() === 3) {
 195               const defaultFluctuatedPowerPerPhase = powerSampledValueTemplate.value
 196                 && Utils.getRandomFloatFluctuatedRounded(parseInt(powerSampledValueTemplate.value) / this.chargingStation.getNumberOfPhases(), powerSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 197               const phase1FluctuatedValue = powerPerPhaseSampledValueTemplates?.L1?.value
 198                 && Utils.getRandomFloatFluctuatedRounded(parseInt(powerPerPhaseSampledValueTemplates.L1.value), powerPerPhaseSampledValueTemplates.L1.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 199               const phase2FluctuatedValue = powerPerPhaseSampledValueTemplates?.L2?.value
 200                 && Utils.getRandomFloatFluctuatedRounded(parseInt(powerPerPhaseSampledValueTemplates.L2.value), powerPerPhaseSampledValueTemplates.L2.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 201               const phase3FluctuatedValue = powerPerPhaseSampledValueTemplates?.L3?.value
 202                 && Utils.getRandomFloatFluctuatedRounded(parseInt(powerPerPhaseSampledValueTemplates.L3.value), powerPerPhaseSampledValueTemplates.L3.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 203               powerMeasurandValues.L1 = (phase1FluctuatedValue ?? defaultFluctuatedPowerPerPhase) ?? Utils.getRandomFloatRounded(maxPowerPerPhase / unitDivider);
 204               powerMeasurandValues.L2 = (phase2FluctuatedValue ?? defaultFluctuatedPowerPerPhase) ?? Utils.getRandomFloatRounded(maxPowerPerPhase / unitDivider);
 205               powerMeasurandValues.L3 = (phase3FluctuatedValue ?? defaultFluctuatedPowerPerPhase) ?? Utils.getRandomFloatRounded(maxPowerPerPhase / unitDivider);
 206             } else {
 207               powerMeasurandValues.L1 = powerSampledValueTemplate.value
 208                 ? Utils.getRandomFloatFluctuatedRounded(parseInt(powerSampledValueTemplate.value), powerSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 209                 : Utils.getRandomFloatRounded(maxPower / unitDivider);
 210               powerMeasurandValues.L2 = 0;
 211               powerMeasurandValues.L3 = 0;
 212             }
 213             powerMeasurandValues.allPhases = Utils.roundTo(powerMeasurandValues.L1 + powerMeasurandValues.L2 + powerMeasurandValues.L3, 2);
 214             break;
 215           case CurrentType.DC:
 216             powerMeasurandValues.allPhases = powerSampledValueTemplate.value
 217               ? Utils.getRandomFloatFluctuatedRounded(parseInt(powerSampledValueTemplate.value), powerSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 218               : Utils.getRandomFloatRounded(maxPower / unitDivider);
 219             break;
 220           default:
 221             logger.error(errMsg);
 222             throw new Error(errMsg);
 223         }
 224         meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(powerSampledValueTemplate, powerMeasurandValues.allPhases));
 225         const sampledValuesIndex = meterValue.sampledValue.length - 1;
 226         const maxPowerRounded = Utils.roundTo(maxPower / unitDivider, 2);
 227         if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxPowerRounded || debug) {
 228           logger.error(`${this.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/${maxPowerRounded}`);
 229         }
 230         for (let phase = 1; this.chargingStation.getNumberOfPhases() === 3 && phase <= this.chargingStation.getNumberOfPhases(); phase++) {
 231           const phaseValue = `L${phase}-N`;
 232           meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(powerPerPhaseSampledValueTemplates[`L${phase}`] ?? powerSampledValueTemplate, powerMeasurandValues[`L${phase}`], null,
 233             phaseValue as OCPP16MeterValuePhase));
 234           const sampledValuesPerPhaseIndex = meterValue.sampledValue.length - 1;
 235           const maxPowerPerPhaseRounded = Utils.roundTo(maxPowerPerPhase / unitDivider, 2);
 236           if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesPerPhaseIndex].value) > maxPowerPerPhaseRounded || debug) {
 237             logger.error(`${this.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}`);
 238           }
 239         }
 240       }
 241       // Current.Import measurand
 242       const currentSampledValueTemplate = this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.CURRENT_IMPORT);
 243       let currentPerPhaseSampledValueTemplates: MeasurandPerPhaseSampledValueTemplates = {};
 244       if (this.chargingStation.getNumberOfPhases() === 3) {
 245         currentPerPhaseSampledValueTemplates = {
 246           L1: this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.CURRENT_IMPORT, OCPP16MeterValuePhase.L1),
 247           L2: this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.CURRENT_IMPORT, OCPP16MeterValuePhase.L2),
 248           L3: this.chargingStation.getSampledValueTemplate(connectorId, OCPP16MeterValueMeasurand.CURRENT_IMPORT, OCPP16MeterValuePhase.L3),
 249         };
 250       }
 251       if (currentSampledValueTemplate) {
 252         OCPP16ServiceUtils.checkMeasurandPowerDivider(this.chargingStation, currentSampledValueTemplate.measurand);
 253         const errMsg = `${this.chargingStation.logPrefix()} MeterValues measurand ${currentSampledValueTemplate.measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: Unknown ${this.chargingStation.getCurrentOutType()} currentOutType in template file ${this.chargingStation.stationTemplateFile}, cannot calculate ${currentSampledValueTemplate.measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER} measurand value`;
 254         const currentMeasurandValues: MeasurandValues = {} as MeasurandValues;
 255         let maxAmperage: number;
 256         switch (this.chargingStation.getCurrentOutType()) {
 257           case CurrentType.AC:
 258             maxAmperage = ACElectricUtils.amperagePerPhaseFromPower(this.chargingStation.getNumberOfPhases(), this.chargingStation.stationInfo.maxPower / this.chargingStation.stationInfo.powerDivider, this.chargingStation.getVoltageOut());
 259             if (this.chargingStation.getNumberOfPhases() === 3) {
 260               const defaultFluctuatedAmperagePerPhase = currentSampledValueTemplate.value
 261                 && Utils.getRandomFloatFluctuatedRounded(parseInt(currentSampledValueTemplate.value), currentSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 262               const phase1FluctuatedValue = currentPerPhaseSampledValueTemplates?.L1?.value
 263                 && Utils.getRandomFloatFluctuatedRounded(parseInt(currentPerPhaseSampledValueTemplates.L1.value), currentPerPhaseSampledValueTemplates.L1.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 264               const phase2FluctuatedValue = currentPerPhaseSampledValueTemplates?.L2?.value
 265                 && Utils.getRandomFloatFluctuatedRounded(parseInt(currentPerPhaseSampledValueTemplates.L2.value), currentPerPhaseSampledValueTemplates.L2.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 266               const phase3FluctuatedValue = currentPerPhaseSampledValueTemplates?.L3?.value
 267                 && Utils.getRandomFloatFluctuatedRounded(parseInt(currentPerPhaseSampledValueTemplates.L3.value), currentPerPhaseSampledValueTemplates.L3.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT);
 268               currentMeasurandValues.L1 = (phase1FluctuatedValue ?? defaultFluctuatedAmperagePerPhase) ?? Utils.getRandomFloatRounded(maxAmperage);
 269               currentMeasurandValues.L2 = (phase2FluctuatedValue ?? defaultFluctuatedAmperagePerPhase) ?? Utils.getRandomFloatRounded(maxAmperage);
 270               currentMeasurandValues.L3 = (phase3FluctuatedValue ?? defaultFluctuatedAmperagePerPhase) ?? Utils.getRandomFloatRounded(maxAmperage);
 271             } else {
 272               currentMeasurandValues.L1 = currentSampledValueTemplate.value
 273                 ? Utils.getRandomFloatFluctuatedRounded(parseInt(currentSampledValueTemplate.value), currentSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 274                 : Utils.getRandomFloatRounded(maxAmperage);
 275               currentMeasurandValues.L2 = 0;
 276               currentMeasurandValues.L3 = 0;
 277             }
 278             currentMeasurandValues.allPhases = Utils.roundTo((currentMeasurandValues.L1 + currentMeasurandValues.L2 + currentMeasurandValues.L3) / this.chargingStation.getNumberOfPhases(), 2);
 279             break;
 280           case CurrentType.DC:
 281             maxAmperage = DCElectricUtils.amperage(this.chargingStation.stationInfo.maxPower / this.chargingStation.stationInfo.powerDivider, this.chargingStation.getVoltageOut());
 282             currentMeasurandValues.allPhases = currentSampledValueTemplate.value
 283               ? Utils.getRandomFloatFluctuatedRounded(parseInt(currentSampledValueTemplate.value), currentSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 284               : Utils.getRandomFloatRounded(maxAmperage);
 285             break;
 286           default:
 287             logger.error(errMsg);
 288             throw new Error(errMsg);
 289         }
 290         meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(currentSampledValueTemplate, currentMeasurandValues.allPhases));
 291         const sampledValuesIndex = meterValue.sampledValue.length - 1;
 292         if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxAmperage || debug) {
 293           logger.error(`${this.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/${maxAmperage}`);
 294         }
 295         for (let phase = 1; this.chargingStation.getNumberOfPhases() === 3 && phase <= this.chargingStation.getNumberOfPhases(); phase++) {
 296           const phaseValue = `L${phase}`;
 297           meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(currentPerPhaseSampledValueTemplates[phaseValue] ?? currentSampledValueTemplate,
 298             currentMeasurandValues[phaseValue], null, phaseValue as OCPP16MeterValuePhase));
 299           const sampledValuesPerPhaseIndex = meterValue.sampledValue.length - 1;
 300           if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesPerPhaseIndex].value) > maxAmperage || debug) {
 301             logger.error(`${this.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}`);
 302           }
 303         }
 304       }
 305       // Energy.Active.Import.Register measurand (default)
 306       const energySampledValueTemplate = this.chargingStation.getSampledValueTemplate(connectorId);
 307       if (energySampledValueTemplate) {
 308         OCPP16ServiceUtils.checkMeasurandPowerDivider(this.chargingStation, energySampledValueTemplate.measurand);
 309         const unitDivider = energySampledValueTemplate?.unit === MeterValueUnit.KILO_WATT_HOUR ? 1000 : 1;
 310         const energyMeasurandValue = energySampledValueTemplate.value
 311           // Cumulate the fluctuated value around the static one
 312           ? Utils.getRandomFloatFluctuatedRounded(parseInt(energySampledValueTemplate.value), energySampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT)
 313           : Utils.getRandomInt(this.chargingStation.stationInfo.maxPower / (this.chargingStation.stationInfo.powerDivider * 3600000) * interval);
 314         // Persist previous value on connector
 315         if (connector && !Utils.isNullOrUndefined(connector.energyActiveImportRegisterValue) && connector.energyActiveImportRegisterValue >= 0 &&
 316             !Utils.isNullOrUndefined(connector.transactionEnergyActiveImportRegisterValue) && connector.transactionEnergyActiveImportRegisterValue >= 0) {
 317           connector.energyActiveImportRegisterValue += energyMeasurandValue;
 318           connector.transactionEnergyActiveImportRegisterValue += energyMeasurandValue;
 319         } else {
 320           connector.energyActiveImportRegisterValue = 0;
 321           connector.transactionEnergyActiveImportRegisterValue = 0;
 322         }
 323         meterValue.sampledValue.push(OCPP16ServiceUtils.buildSampledValue(energySampledValueTemplate,
 324           Utils.roundTo(this.chargingStation.getEnergyActiveImportRegisterByTransactionId(transactionId) / unitDivider, 4)));
 325         const sampledValuesIndex = meterValue.sampledValue.length - 1;
 326         const maxEnergy = Math.round(this.chargingStation.stationInfo.maxPower * 3600 / (this.chargingStation.stationInfo.powerDivider * interval));
 327         const maxEnergyRounded = Utils.roundTo(maxEnergy / unitDivider, 4);
 328         if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxEnergyRounded || debug) {
 329           logger.error(`${this.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ?? OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/${maxEnergyRounded}`);
 330         }
 331       }
 332       const payload: MeterValuesRequest = {
 333         connectorId,
 334         transactionId,
 335         meterValue,
 336       };
 337       await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.METER_VALUES);
 338     } catch (error) {
 339       this.handleRequestError(OCPP16RequestCommand.METER_VALUES, error);
 340     }
 341   }
 342
 343   public async sendTransactionBeginMeterValues(connectorId: number, transactionId: number, beginMeterValue: OCPP16MeterValue): Promise<void> {
 344     try {
 345       const payload: MeterValuesRequest = {
 346         connectorId,
 347         transactionId,
 348         meterValue: beginMeterValue,
 349       };
 350       await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.METER_VALUES);
 351     } catch (error) {
 352       this.handleRequestError(OCPP16RequestCommand.METER_VALUES, error);
 353     }
 354   }
 355
 356   public async sendTransactionEndMeterValues(connectorId: number, transactionId: number, endMeterValue: OCPP16MeterValue): Promise<void> {
 357     try {
 358       const payload: MeterValuesRequest = {
 359         connectorId,
 360         transactionId,
 361         meterValue: endMeterValue,
 362       };
 363       await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.METER_VALUES);
 364     } catch (error) {
 365       this.handleRequestError(OCPP16RequestCommand.METER_VALUES, error);
 366     }
 367   }
 368
 369   public async sendDiagnosticsStatusNotification(diagnosticsStatus: OCPP16DiagnosticsStatus): Promise<void> {
 370     try {
 371       const payload: DiagnosticsStatusNotificationRequest = {
 372         status: diagnosticsStatus
 373       };
 374       await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION);
 375     } catch (error) {
 376       this.handleRequestError(OCPP16RequestCommand.METER_VALUES, error);
 377     }
 378   }
 379
 380   public async sendError(messageId: string, error: OCPPError, commandName: OCPP16RequestCommand | OCPP16IncomingRequestCommand): Promise<unknown> {
 381     try {
 382       // Send error
 383       return this.sendMessage(messageId, error, MessageType.CALL_ERROR_MESSAGE, commandName);
 384     } catch (err) {
 385       this.handleRequestError(commandName as OCPP16RequestCommand, err);
 386     }
 387   }
 388 }