X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fcharging-station%2Focpp%2F1.6%2FOCPP16RequestService.ts;h=5cd71f426278f051bca58b17a1c5ad316def3d69;hb=c0f4be747574980ada77fd4be1c691637fa69347;hp=96502b3cc9b81b9a7082fabd63cee87478ae0727;hpb=bb80986b8d8724de94e2b307aef9b63c45cdfce3;p=e-mobility-charging-stations-simulator.git

diff --git a/src/charging-station/ocpp/1.6/OCPP16RequestService.ts b/src/charging-station/ocpp/1.6/OCPP16RequestService.ts
index 96502b3c..5cd71f42 100644
--- a/src/charging-station/ocpp/1.6/OCPP16RequestService.ts
+++ b/src/charging-station/ocpp/1.6/OCPP16RequestService.ts
@@ -1,327 +1,791 @@
-import { AuthorizeRequest, OCPP16AuthorizeResponse, OCPP16StartTransactionResponse, OCPP16StopTransactionReason, OCPP16StopTransactionResponse, StartTransactionRequest, StopTransactionRequest } from '../../../types/ocpp/1.6/Transaction';
-import { HeartbeatRequest, OCPP16BootNotificationRequest, OCPP16IncomingRequestCommand, OCPP16RequestCommand, StatusNotificationRequest } from '../../../types/ocpp/1.6/Requests';
-import { MeterValue, MeterValueLocation, MeterValuePhase, MeterValueUnit, MeterValuesRequest, OCPP16MeterValueMeasurand, OCPP16SampledValue } from '../../../types/ocpp/1.6/MeterValues';
+// Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
 
-import { ACElectricUtils } from '../../../utils/ElectricUtils';
+import { ACElectricUtils, DCElectricUtils } from '../../../utils/ElectricUtils';
+import {
+  AuthorizeRequest,
+  OCPP16AuthorizeResponse,
+  OCPP16StartTransactionResponse,
+  OCPP16StopTransactionReason,
+  OCPP16StopTransactionResponse,
+  StartTransactionRequest,
+  StopTransactionRequest,
+} from '../../../types/ocpp/1.6/Transaction';
+import { CurrentType, Voltage } from '../../../types/ChargingStationTemplate';
+import {
+  DiagnosticsStatusNotificationRequest,
+  HeartbeatRequest,
+  OCPP16BootNotificationRequest,
+  OCPP16RequestCommand,
+  StatusNotificationRequest,
+} from '../../../types/ocpp/1.6/Requests';
+import MeasurandPerPhaseSampledValueTemplates, {
+  SampledValueTemplate,
+} from '../../../types/MeasurandPerPhaseSampledValueTemplates';
+import {
+  MeterValueUnit,
+  MeterValuesRequest,
+  OCPP16MeterValue,
+  OCPP16MeterValueMeasurand,
+  OCPP16MeterValuePhase,
+} from '../../../types/ocpp/1.6/MeterValues';
+
+import type ChargingStation from '../../ChargingStation';
 import Constants from '../../../utils/Constants';
+import { ErrorType } from '../../../types/ocpp/ErrorType';
 import MeasurandValues from '../../../types/MeasurandValues';
-import { MessageType } from '../../../types/ocpp/MessageType';
 import { OCPP16BootNotificationResponse } from '../../../types/ocpp/1.6/Responses';
 import { OCPP16ChargePointErrorCode } from '../../../types/ocpp/1.6/ChargePointErrorCode';
 import { OCPP16ChargePointStatus } from '../../../types/ocpp/1.6/ChargePointStatus';
-import { OCPP16StandardParametersKey } from '../../../types/ocpp/1.6/Configuration';
-import OCPPError from '../../OcppError';
+import { OCPP16DiagnosticsStatus } from '../../../types/ocpp/1.6/DiagnosticsStatus';
+import { OCPP16ServiceUtils } from './OCPP16ServiceUtils';
+import OCPPError from '../../../exception/OCPPError';
 import OCPPRequestService from '../OCPPRequestService';
-import { PowerOutType } from '../../../types/ChargingStationTemplate';
+import type OCPPResponseService from '../OCPPResponseService';
+import { SendParams } from '../../../types/ocpp/Requests';
 import Utils from '../../../utils/Utils';
 import logger from '../../../utils/Logger';
 
+const moduleName = 'OCPP16RequestService';
+
 export default class OCPP16RequestService extends OCPPRequestService {
-  public async sendHeartbeat(): Promise<void> {
-    try {
-      const payload: HeartbeatRequest = {};
-      await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.HEARTBEAT);
-    } catch (error) {
-      this.handleRequestError(OCPP16RequestCommand.HEARTBEAT, error);
+  public constructor(chargingStation: ChargingStation, ocppResponseService: OCPPResponseService) {
+    if (new.target?.name === moduleName) {
+      throw new TypeError(`Cannot construct ${new.target?.name} instances directly`);
     }
+    super(chargingStation, ocppResponseService);
   }
 
-  public async sendBootNotification(chargePointModel: string, chargePointVendor: string, chargeBoxSerialNumber?: string, firmwareVersion?: string, chargePointSerialNumber?: string, iccid?: string, imsi?: string, meterSerialNumber?: string, meterType?: string): Promise<OCPP16BootNotificationResponse> {
-    try {
-      const payload: OCPP16BootNotificationRequest = {
-        chargePointModel,
-        chargePointVendor,
-        ...!Utils.isUndefined(chargeBoxSerialNumber) && { chargeBoxSerialNumber },
-        ...!Utils.isUndefined(chargePointSerialNumber) && { chargePointSerialNumber },
-        ...!Utils.isUndefined(firmwareVersion) && { firmwareVersion },
-        ...!Utils.isUndefined(iccid) && { iccid },
-        ...!Utils.isUndefined(imsi) && { imsi },
-        ...!Utils.isUndefined(meterSerialNumber) && { meterSerialNumber },
-        ...!Utils.isUndefined(meterType) && { meterType }
-      };
-      return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.BOOT_NOTIFICATION) as OCPP16BootNotificationResponse;
-    } catch (error) {
-      this.handleRequestError(OCPP16RequestCommand.BOOT_NOTIFICATION, error);
-    }
+  public async sendHeartbeat(params?: SendParams): Promise<void> {
+    const payload: HeartbeatRequest = {};
+    await this.sendMessage(Utils.generateUUID(), payload, OCPP16RequestCommand.HEARTBEAT, params);
   }
 
-  public async sendStatusNotification(connectorId: number, status: OCPP16ChargePointStatus,
-      errorCode: OCPP16ChargePointErrorCode = OCPP16ChargePointErrorCode.NO_ERROR): Promise<void> {
-    try {
-      const payload: StatusNotificationRequest = {
-        connectorId,
-        errorCode,
-        status,
-      };
-      await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.STATUS_NOTIFICATION);
-    } catch (error) {
-      this.handleRequestError(OCPP16RequestCommand.STATUS_NOTIFICATION, error);
-    }
+  public async sendBootNotification(
+    chargePointModel: string,
+    chargePointVendor: string,
+    chargeBoxSerialNumber?: string,
+    firmwareVersion?: string,
+    chargePointSerialNumber?: string,
+    iccid?: string,
+    imsi?: string,
+    meterSerialNumber?: string,
+    meterType?: string,
+    params?: SendParams
+  ): Promise<OCPP16BootNotificationResponse> {
+    const payload: OCPP16BootNotificationRequest = {
+      chargePointModel,
+      chargePointVendor,
+      ...(!Utils.isUndefined(chargeBoxSerialNumber) && { chargeBoxSerialNumber }),
+      ...(!Utils.isUndefined(chargePointSerialNumber) && { chargePointSerialNumber }),
+      ...(!Utils.isUndefined(firmwareVersion) && { firmwareVersion }),
+      ...(!Utils.isUndefined(iccid) && { iccid }),
+      ...(!Utils.isUndefined(imsi) && { imsi }),
+      ...(!Utils.isUndefined(meterSerialNumber) && { meterSerialNumber }),
+      ...(!Utils.isUndefined(meterType) && { meterType }),
+    };
+    return (await this.sendMessage(
+      Utils.generateUUID(),
+      payload,
+      OCPP16RequestCommand.BOOT_NOTIFICATION,
+      { ...params, skipBufferingOnError: true }
+    )) as OCPP16BootNotificationResponse;
   }
 
-  public async sendAuthorize(idTag?: string): Promise<OCPP16AuthorizeResponse> {
-    try {
-      const payload: AuthorizeRequest = {
-        ...!Utils.isUndefined(idTag) ? { idTag } : { idTag: Constants.TRANSACTION_DEFAULT_TAGID },
-      };
-      return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.AUTHORIZE) as OCPP16AuthorizeResponse;
-    } catch (error) {
-      this.handleRequestError(OCPP16RequestCommand.AUTHORIZE, error);
-    }
+  public async sendStatusNotification(
+    connectorId: number,
+    status: OCPP16ChargePointStatus,
+    errorCode: OCPP16ChargePointErrorCode = OCPP16ChargePointErrorCode.NO_ERROR
+  ): Promise<void> {
+    const payload: StatusNotificationRequest = {
+      connectorId,
+      errorCode,
+      status,
+    };
+    await this.sendMessage(Utils.generateUUID(), payload, OCPP16RequestCommand.STATUS_NOTIFICATION);
   }
 
-  public async sendStartTransaction(connectorId: number, idTag?: string): Promise<OCPP16StartTransactionResponse> {
-    try {
-      const payload: StartTransactionRequest = {
-        connectorId,
-        ...!Utils.isUndefined(idTag) ? { idTag } : { idTag: Constants.TRANSACTION_DEFAULT_TAGID },
-        meterStart: 0,
-        timestamp: new Date().toISOString(),
-      };
-      return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.START_TRANSACTION) as OCPP16StartTransactionResponse;
-    } catch (error) {
-      this.handleRequestError(OCPP16RequestCommand.START_TRANSACTION, error);
-    }
+  public async sendAuthorize(
+    connectorId: number,
+    idTag?: string
+  ): Promise<OCPP16AuthorizeResponse> {
+    const payload: AuthorizeRequest = {
+      ...(!Utils.isUndefined(idTag) ? { idTag } : { idTag: Constants.DEFAULT_IDTAG }),
+    };
+    this.chargingStation.getConnectorStatus(connectorId).authorizeIdTag = idTag;
+    return (await this.sendMessage(
+      Utils.generateUUID(),
+      payload,
+      OCPP16RequestCommand.AUTHORIZE
+    )) as OCPP16AuthorizeResponse;
   }
 
-  public async sendStopTransaction(transactionId: number, meterStop: number, idTag?: string,
-      reason: OCPP16StopTransactionReason = OCPP16StopTransactionReason.NONE): Promise<OCPP16StopTransactionResponse> {
-    try {
-      const payload: StopTransactionRequest = {
-        transactionId,
-        ...!Utils.isUndefined(idTag) && { idTag },
-        meterStop: meterStop,
-        timestamp: new Date().toISOString(),
-        ...reason && { reason },
-      };
-      return await this.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.STOP_TRANSACTION) as OCPP16StartTransactionResponse;
-    } catch (error) {
-      this.handleRequestError(OCPP16RequestCommand.STOP_TRANSACTION, error);
+  public async sendStartTransaction(
+    connectorId: number,
+    idTag?: string
+  ): Promise<OCPP16StartTransactionResponse> {
+    const payload: StartTransactionRequest = {
+      connectorId,
+      ...(!Utils.isUndefined(idTag) ? { idTag } : { idTag: Constants.DEFAULT_IDTAG }),
+      meterStart: this.chargingStation.getEnergyActiveImportRegisterByConnectorId(connectorId),
+      timestamp: new Date().toISOString(),
+    };
+    return (await this.sendMessage(
+      Utils.generateUUID(),
+      payload,
+      OCPP16RequestCommand.START_TRANSACTION
+    )) as OCPP16StartTransactionResponse;
+  }
+
+  public async sendStopTransaction(
+    transactionId: number,
+    meterStop: number,
+    idTag?: string,
+    reason: OCPP16StopTransactionReason = OCPP16StopTransactionReason.NONE
+  ): Promise<OCPP16StopTransactionResponse> {
+    let connectorId: number;
+    for (const id of this.chargingStation.connectors.keys()) {
+      if (id > 0 && this.chargingStation.getConnectorStatus(id)?.transactionId === transactionId) {
+        connectorId = id;
+        break;
+      }
     }
+    const transactionEndMeterValue = OCPP16ServiceUtils.buildTransactionEndMeterValue(
+      this.chargingStation,
+      connectorId,
+      meterStop
+    );
+    // FIXME: should be a callback, each OCPP commands implementation must do only one job
+    this.chargingStation.getBeginEndMeterValues() &&
+      this.chargingStation.getOcppStrictCompliance() &&
+      !this.chargingStation.getOutOfOrderEndMeterValues() &&
+      (await this.sendTransactionEndMeterValues(
+        connectorId,
+        transactionId,
+        transactionEndMeterValue
+      ));
+    const payload: StopTransactionRequest = {
+      transactionId,
+      ...(!Utils.isUndefined(idTag) && { idTag }),
+      meterStop,
+      timestamp: new Date().toISOString(),
+      ...(reason && { reason }),
+      ...(this.chargingStation.getTransactionDataMeterValues() && {
+        transactionData: OCPP16ServiceUtils.buildTransactionDataMeterValues(
+          this.chargingStation.getConnectorStatus(connectorId).transactionBeginMeterValue,
+          transactionEndMeterValue
+        ),
+      }),
+    };
+    return (await this.sendMessage(
+      Utils.generateUUID(),
+      payload,
+      OCPP16RequestCommand.STOP_TRANSACTION
+    )) as OCPP16StartTransactionResponse;
   }
 
-  // eslint-disable-next-line consistent-this
-  public async sendMeterValues(connectorId: number, transactionId: number, interval: number, self: OCPPRequestService, debug = false): Promise<void> {
-    try {
-      const meterValue: MeterValue = {
-        timestamp: new Date().toISOString(),
-        sampledValue: [],
-      };
-      const meterValuesTemplate: OCPP16SampledValue[] = self.chargingStation.getConnector(connectorId).MeterValues;
-      for (let index = 0; index < meterValuesTemplate.length; index++) {
-        const connector = self.chargingStation.getConnector(connectorId);
-        // SoC measurand
-        if (meterValuesTemplate[index].measurand && meterValuesTemplate[index].measurand === OCPP16MeterValueMeasurand.STATE_OF_CHARGE && self.chargingStation.getConfigurationKey(OCPP16StandardParametersKey.MeterValuesSampledData).value.includes(OCPP16MeterValueMeasurand.STATE_OF_CHARGE)) {
-          meterValue.sampledValue.push({
-            ...!Utils.isUndefined(meterValuesTemplate[index].unit) ? { unit: meterValuesTemplate[index].unit } : { unit: MeterValueUnit.PERCENT },
-            ...!Utils.isUndefined(meterValuesTemplate[index].context) && { context: meterValuesTemplate[index].context },
-            measurand: meterValuesTemplate[index].measurand,
-            ...!Utils.isUndefined(meterValuesTemplate[index].location) ? { location: meterValuesTemplate[index].location } : { location: MeterValueLocation.EV },
-            ...!Utils.isUndefined(meterValuesTemplate[index].value) ? { value: meterValuesTemplate[index].value } : { value: Utils.getRandomInt(100).toString() },
-          });
-          const sampledValuesIndex = meterValue.sampledValue.length - 1;
-          if (Utils.convertToInt(meterValue.sampledValue[sampledValuesIndex].value) > 100 || debug) {
-            logger.error(`${self.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ? meterValue.sampledValue[sampledValuesIndex].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/100`);
-          }
-        // Voltage measurand
-        } else if (meterValuesTemplate[index].measurand && meterValuesTemplate[index].measurand === OCPP16MeterValueMeasurand.VOLTAGE && self.chargingStation.getConfigurationKey(OCPP16StandardParametersKey.MeterValuesSampledData).value.includes(OCPP16MeterValueMeasurand.VOLTAGE)) {
-          const voltageMeasurandValue = Utils.getRandomFloatRounded(self.chargingStation.getVoltageOut() + self.chargingStation.getVoltageOut() * 0.1, self.chargingStation.getVoltageOut() - self.chargingStation.getVoltageOut() * 0.1);
-          meterValue.sampledValue.push({
-            ...!Utils.isUndefined(meterValuesTemplate[index].unit) ? { unit: meterValuesTemplate[index].unit } : { unit: MeterValueUnit.VOLT },
-            ...!Utils.isUndefined(meterValuesTemplate[index].context) && { context: meterValuesTemplate[index].context },
-            measurand: meterValuesTemplate[index].measurand,
-            ...!Utils.isUndefined(meterValuesTemplate[index].location) && { location: meterValuesTemplate[index].location },
-            ...!Utils.isUndefined(meterValuesTemplate[index].value) ? { value: meterValuesTemplate[index].value } : { value: voltageMeasurandValue.toString() },
-          });
-          for (let phase = 1; self.chargingStation.getNumberOfPhases() === 3 && phase <= self.chargingStation.getNumberOfPhases(); phase++) {
-            let phaseValue: string;
-            if (self.chargingStation.getVoltageOut() >= 0 && self.chargingStation.getVoltageOut() <= 250) {
-              phaseValue = `L${phase}-N`;
-            } else if (self.chargingStation.getVoltageOut() > 250) {
-              phaseValue = `L${phase}-L${(phase + 1) % self.chargingStation.getNumberOfPhases() !== 0 ? (phase + 1) % self.chargingStation.getNumberOfPhases() : self.chargingStation.getNumberOfPhases()}`;
-            }
-            meterValue.sampledValue.push({
-              ...!Utils.isUndefined(meterValuesTemplate[index].unit) ? { unit: meterValuesTemplate[index].unit } : { unit: MeterValueUnit.VOLT },
-              ...!Utils.isUndefined(meterValuesTemplate[index].context) && { context: meterValuesTemplate[index].context },
-              measurand: meterValuesTemplate[index].measurand,
-              ...!Utils.isUndefined(meterValuesTemplate[index].location) && { location: meterValuesTemplate[index].location },
-              ...!Utils.isUndefined(meterValuesTemplate[index].value) ? { value: meterValuesTemplate[index].value } : { value: voltageMeasurandValue.toString() },
-              phase: phaseValue as MeterValuePhase,
-            });
-          }
-        // Power.Active.Import measurand
-        } else if (meterValuesTemplate[index].measurand && meterValuesTemplate[index].measurand === OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT && self.chargingStation.getConfigurationKey(OCPP16StandardParametersKey.MeterValuesSampledData).value.includes(OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT)) {
-          // FIXME: factor out powerDivider checks
-          if (Utils.isUndefined(self.chargingStation.stationInfo.powerDivider)) {
-            const errMsg = `${self.chargingStation.logPrefix()} MeterValues measurand ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: powerDivider is undefined`;
-            logger.error(errMsg);
-            throw Error(errMsg);
-          } else if (self.chargingStation.stationInfo.powerDivider && self.chargingStation.stationInfo.powerDivider <= 0) {
-            const errMsg = `${self.chargingStation.logPrefix()} MeterValues measurand ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: powerDivider have zero or below value ${self.chargingStation.stationInfo.powerDivider}`;
-            logger.error(errMsg);
-            throw Error(errMsg);
-          }
-          const errMsg = `${self.chargingStation.logPrefix()} MeterValues measurand ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: Unknown ${self.chargingStation.getPowerOutType()} powerOutType in template file ${self.chargingStation.stationTemplateFile}, cannot calculate ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER} measurand value`;
-          const powerMeasurandValues = {} as MeasurandValues;
-          const maxPower = Math.round(self.chargingStation.stationInfo.maxPower / self.chargingStation.stationInfo.powerDivider);
-          const maxPowerPerPhase = Math.round((self.chargingStation.stationInfo.maxPower / self.chargingStation.stationInfo.powerDivider) / self.chargingStation.getNumberOfPhases());
-          switch (self.chargingStation.getPowerOutType()) {
-            case PowerOutType.AC:
-              if (Utils.isUndefined(meterValuesTemplate[index].value)) {
-                powerMeasurandValues.L1 = Utils.getRandomFloatRounded(maxPowerPerPhase);
-                powerMeasurandValues.L2 = 0;
-                powerMeasurandValues.L3 = 0;
-                if (self.chargingStation.getNumberOfPhases() === 3) {
-                  powerMeasurandValues.L2 = Utils.getRandomFloatRounded(maxPowerPerPhase);
-                  powerMeasurandValues.L3 = Utils.getRandomFloatRounded(maxPowerPerPhase);
-                }
-                powerMeasurandValues.allPhases = Utils.roundTo(powerMeasurandValues.L1 + powerMeasurandValues.L2 + powerMeasurandValues.L3, 2);
-              }
-              break;
-            case PowerOutType.DC:
-              if (Utils.isUndefined(meterValuesTemplate[index].value)) {
-                powerMeasurandValues.allPhases = Utils.getRandomFloatRounded(maxPower);
-              }
-              break;
-            default:
-              logger.error(errMsg);
-              throw Error(errMsg);
-          }
-          meterValue.sampledValue.push({
-            ...!Utils.isUndefined(meterValuesTemplate[index].unit) ? { unit: meterValuesTemplate[index].unit } : { unit: MeterValueUnit.WATT },
-            ...!Utils.isUndefined(meterValuesTemplate[index].context) && { context: meterValuesTemplate[index].context },
-            measurand: meterValuesTemplate[index].measurand,
-            ...!Utils.isUndefined(meterValuesTemplate[index].location) && { location: meterValuesTemplate[index].location },
-            ...!Utils.isUndefined(meterValuesTemplate[index].value) ? { value: meterValuesTemplate[index].value } : { value: powerMeasurandValues.allPhases.toString() },
-          });
-          const sampledValuesIndex = meterValue.sampledValue.length - 1;
-          if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxPower || debug) {
-            logger.error(`${self.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ? meterValue.sampledValue[sampledValuesIndex].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/${maxPower}`);
-          }
-          for (let phase = 1; self.chargingStation.getNumberOfPhases() === 3 && phase <= self.chargingStation.getNumberOfPhases(); phase++) {
-            const phaseValue = `L${phase}-N`;
-            meterValue.sampledValue.push({
-              ...!Utils.isUndefined(meterValuesTemplate[index].unit) ? { unit: meterValuesTemplate[index].unit } : { unit: MeterValueUnit.WATT },
-              ...!Utils.isUndefined(meterValuesTemplate[index].context) && { context: meterValuesTemplate[index].context },
-              ...!Utils.isUndefined(meterValuesTemplate[index].measurand) && { measurand: meterValuesTemplate[index].measurand },
-              ...!Utils.isUndefined(meterValuesTemplate[index].location) && { location: meterValuesTemplate[index].location },
-              ...!Utils.isUndefined(meterValuesTemplate[index].value) ? { value: meterValuesTemplate[index].value } : { value: powerMeasurandValues[`L${phase}`] as string },
-              phase: phaseValue as MeterValuePhase,
-            });
-          }
-        // Current.Import measurand
-        } else if (meterValuesTemplate[index].measurand && meterValuesTemplate[index].measurand === OCPP16MeterValueMeasurand.CURRENT_IMPORT && self.chargingStation.getConfigurationKey(OCPP16StandardParametersKey.MeterValuesSampledData).value.includes(OCPP16MeterValueMeasurand.CURRENT_IMPORT)) {
-          // FIXME: factor out powerDivider checks
-          if (Utils.isUndefined(self.chargingStation.stationInfo.powerDivider)) {
-            const errMsg = `${self.chargingStation.logPrefix()} MeterValues measurand ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: powerDivider is undefined`;
-            logger.error(errMsg);
-            throw Error(errMsg);
-          } else if (self.chargingStation.stationInfo.powerDivider && self.chargingStation.stationInfo.powerDivider <= 0) {
-            const errMsg = `${self.chargingStation.logPrefix()} MeterValues measurand ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: powerDivider have zero or below value ${self.chargingStation.stationInfo.powerDivider}`;
-            logger.error(errMsg);
-            throw Error(errMsg);
-          }
-          const errMsg = `${self.chargingStation.logPrefix()} MeterValues measurand ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: Unknown ${self.chargingStation.getPowerOutType()} powerOutType in template file ${self.chargingStation.stationTemplateFile}, cannot calculate ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER} measurand value`;
-          const currentMeasurandValues: MeasurandValues = {} as MeasurandValues;
-          let maxAmperage: number;
-          switch (self.chargingStation.getPowerOutType()) {
-            case PowerOutType.AC:
-              maxAmperage = ACElectricUtils.amperagePerPhaseFromPower(self.chargingStation.getNumberOfPhases(), self.chargingStation.stationInfo.maxPower / self.chargingStation.stationInfo.powerDivider, self.chargingStation.getVoltageOut());
-              if (Utils.isUndefined(meterValuesTemplate[index].value)) {
-                currentMeasurandValues.L1 = Utils.getRandomFloatRounded(maxAmperage);
-                currentMeasurandValues.L2 = 0;
-                currentMeasurandValues.L3 = 0;
-                if (self.chargingStation.getNumberOfPhases() === 3) {
-                  currentMeasurandValues.L2 = Utils.getRandomFloatRounded(maxAmperage);
-                  currentMeasurandValues.L3 = Utils.getRandomFloatRounded(maxAmperage);
-                }
-                currentMeasurandValues.allPhases = Utils.roundTo((currentMeasurandValues.L1 + currentMeasurandValues.L2 + currentMeasurandValues.L3) / self.chargingStation.getNumberOfPhases(), 2);
-              }
-              break;
-            case PowerOutType.DC:
-              maxAmperage = ACElectricUtils.amperageTotalFromPower(self.chargingStation.stationInfo.maxPower / self.chargingStation.stationInfo.powerDivider, self.chargingStation.getVoltageOut());
-              if (Utils.isUndefined(meterValuesTemplate[index].value)) {
-                currentMeasurandValues.allPhases = Utils.getRandomFloatRounded(maxAmperage);
-              }
-              break;
-            default:
-              logger.error(errMsg);
-              throw Error(errMsg);
-          }
-          meterValue.sampledValue.push({
-            ...!Utils.isUndefined(meterValuesTemplate[index].unit) ? { unit: meterValuesTemplate[index].unit } : { unit: MeterValueUnit.AMP },
-            ...!Utils.isUndefined(meterValuesTemplate[index].context) && { context: meterValuesTemplate[index].context },
-            measurand: meterValuesTemplate[index].measurand,
-            ...!Utils.isUndefined(meterValuesTemplate[index].location) && { location: meterValuesTemplate[index].location },
-            ...!Utils.isUndefined(meterValuesTemplate[index].value) ? { value: meterValuesTemplate[index].value } : { value: currentMeasurandValues.allPhases.toString() },
-          });
-          const sampledValuesIndex = meterValue.sampledValue.length - 1;
-          if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxAmperage || debug) {
-            logger.error(`${self.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ? meterValue.sampledValue[sampledValuesIndex].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/${maxAmperage}`);
-          }
-          for (let phase = 1; self.chargingStation.getNumberOfPhases() === 3 && phase <= self.chargingStation.getNumberOfPhases(); phase++) {
-            const phaseValue = `L${phase}`;
-            meterValue.sampledValue.push({
-              ...!Utils.isUndefined(meterValuesTemplate[index].unit) ? { unit: meterValuesTemplate[index].unit } : { unit: MeterValueUnit.AMP },
-              ...!Utils.isUndefined(meterValuesTemplate[index].context) && { context: meterValuesTemplate[index].context },
-              ...!Utils.isUndefined(meterValuesTemplate[index].measurand) && { measurand: meterValuesTemplate[index].measurand },
-              ...!Utils.isUndefined(meterValuesTemplate[index].location) && { location: meterValuesTemplate[index].location },
-              ...!Utils.isUndefined(meterValuesTemplate[index].value) ? { value: meterValuesTemplate[index].value } : { value: currentMeasurandValues[phaseValue] as string },
-              phase: phaseValue as MeterValuePhase,
-            });
-          }
-        // Energy.Active.Import.Register measurand (default)
-        } else if (!meterValuesTemplate[index].measurand || meterValuesTemplate[index].measurand === OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER) {
-          // FIXME: factor out powerDivider checks
-          if (Utils.isUndefined(self.chargingStation.stationInfo.powerDivider)) {
-            const errMsg = `${self.chargingStation.logPrefix()} MeterValues measurand ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: powerDivider is undefined`;
-            logger.error(errMsg);
-            throw Error(errMsg);
-          } else if (self.chargingStation.stationInfo.powerDivider && self.chargingStation.stationInfo.powerDivider <= 0) {
-            const errMsg = `${self.chargingStation.logPrefix()} MeterValues measurand ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: powerDivider have zero or below value ${self.chargingStation.stationInfo.powerDivider}`;
-            logger.error(errMsg);
-            throw Error(errMsg);
-          }
-          if (Utils.isUndefined(meterValuesTemplate[index].value)) {
-            const measurandValue = Utils.getRandomInt(self.chargingStation.stationInfo.maxPower / (self.chargingStation.stationInfo.powerDivider * 3600000) * interval);
-            // Persist previous value in connector
-            if (connector && !Utils.isNullOrUndefined(connector.lastEnergyActiveImportRegisterValue) && connector.lastEnergyActiveImportRegisterValue >= 0) {
-              connector.lastEnergyActiveImportRegisterValue += measurandValue;
-            } else {
-              connector.lastEnergyActiveImportRegisterValue = 0;
-            }
+  public async sendMeterValues(
+    connectorId: number,
+    transactionId: number,
+    interval: number,
+    debug = false
+  ): Promise<void> {
+    const meterValue: OCPP16MeterValue = {
+      timestamp: new Date().toISOString(),
+      sampledValue: [],
+    };
+    const connector = this.chargingStation.getConnectorStatus(connectorId);
+    // SoC measurand
+    const socSampledValueTemplate = this.chargingStation.getSampledValueTemplate(
+      connectorId,
+      OCPP16MeterValueMeasurand.STATE_OF_CHARGE
+    );
+    if (socSampledValueTemplate) {
+      const socSampledValueTemplateValue = socSampledValueTemplate.value
+        ? Utils.getRandomFloatFluctuatedRounded(
+            parseInt(socSampledValueTemplate.value),
+            socSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT
+          )
+        : Utils.getRandomInteger(100);
+      meterValue.sampledValue.push(
+        OCPP16ServiceUtils.buildSampledValue(socSampledValueTemplate, socSampledValueTemplateValue)
+      );
+      const sampledValuesIndex = meterValue.sampledValue.length - 1;
+      if (Utils.convertToInt(meterValue.sampledValue[sampledValuesIndex].value) > 100 || debug) {
+        logger.error(
+          `${this.chargingStation.logPrefix()} MeterValues measurand ${
+            meterValue.sampledValue[sampledValuesIndex].measurand ??
+            OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER
+          }: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${
+            meterValue.sampledValue[sampledValuesIndex].value
+          }/100`
+        );
+      }
+    }
+    // Voltage measurand
+    const voltageSampledValueTemplate = this.chargingStation.getSampledValueTemplate(
+      connectorId,
+      OCPP16MeterValueMeasurand.VOLTAGE
+    );
+    if (voltageSampledValueTemplate) {
+      const voltageSampledValueTemplateValue = voltageSampledValueTemplate.value
+        ? parseInt(voltageSampledValueTemplate.value)
+        : this.chargingStation.getVoltageOut();
+      const fluctuationPercent =
+        voltageSampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT;
+      const voltageMeasurandValue = Utils.getRandomFloatFluctuatedRounded(
+        voltageSampledValueTemplateValue,
+        fluctuationPercent
+      );
+      if (
+        this.chargingStation.getNumberOfPhases() !== 3 ||
+        (this.chargingStation.getNumberOfPhases() === 3 &&
+          this.chargingStation.getMainVoltageMeterValues())
+      ) {
+        meterValue.sampledValue.push(
+          OCPP16ServiceUtils.buildSampledValue(voltageSampledValueTemplate, voltageMeasurandValue)
+        );
+      }
+      for (
+        let phase = 1;
+        this.chargingStation.getNumberOfPhases() === 3 &&
+        phase <= this.chargingStation.getNumberOfPhases();
+        phase++
+      ) {
+        const phaseLineToNeutralValue = `L${phase}-N`;
+        const voltagePhaseLineToNeutralSampledValueTemplate =
+          this.chargingStation.getSampledValueTemplate(
+            connectorId,
+            OCPP16MeterValueMeasurand.VOLTAGE,
+            phaseLineToNeutralValue as OCPP16MeterValuePhase
+          );
+        let voltagePhaseLineToNeutralMeasurandValue: number;
+        if (voltagePhaseLineToNeutralSampledValueTemplate) {
+          const voltagePhaseLineToNeutralSampledValueTemplateValue =
+            voltagePhaseLineToNeutralSampledValueTemplate.value
+              ? parseInt(voltagePhaseLineToNeutralSampledValueTemplate.value)
+              : this.chargingStation.getVoltageOut();
+          const fluctuationPhaseToNeutralPercent =
+            voltagePhaseLineToNeutralSampledValueTemplate.fluctuationPercent ??
+            Constants.DEFAULT_FLUCTUATION_PERCENT;
+          voltagePhaseLineToNeutralMeasurandValue = Utils.getRandomFloatFluctuatedRounded(
+            voltagePhaseLineToNeutralSampledValueTemplateValue,
+            fluctuationPhaseToNeutralPercent
+          );
+        }
+        meterValue.sampledValue.push(
+          OCPP16ServiceUtils.buildSampledValue(
+            voltagePhaseLineToNeutralSampledValueTemplate ?? voltageSampledValueTemplate,
+            voltagePhaseLineToNeutralMeasurandValue ?? voltageMeasurandValue,
+            null,
+            phaseLineToNeutralValue as OCPP16MeterValuePhase
+          )
+        );
+        if (this.chargingStation.getPhaseLineToLineVoltageMeterValues()) {
+          const phaseLineToLineValue = `L${phase}-L${
+            (phase + 1) % this.chargingStation.getNumberOfPhases() !== 0
+              ? (phase + 1) % this.chargingStation.getNumberOfPhases()
+              : this.chargingStation.getNumberOfPhases()
+          }`;
+          const voltagePhaseLineToLineSampledValueTemplate =
+            this.chargingStation.getSampledValueTemplate(
+              connectorId,
+              OCPP16MeterValueMeasurand.VOLTAGE,
+              phaseLineToLineValue as OCPP16MeterValuePhase
+            );
+          let voltagePhaseLineToLineMeasurandValue: number;
+          if (voltagePhaseLineToLineSampledValueTemplate) {
+            const voltagePhaseLineToLineSampledValueTemplateValue =
+              voltagePhaseLineToLineSampledValueTemplate.value
+                ? parseInt(voltagePhaseLineToLineSampledValueTemplate.value)
+                : Voltage.VOLTAGE_400;
+            const fluctuationPhaseLineToLinePercent =
+              voltagePhaseLineToLineSampledValueTemplate.fluctuationPercent ??
+              Constants.DEFAULT_FLUCTUATION_PERCENT;
+            voltagePhaseLineToLineMeasurandValue = Utils.getRandomFloatFluctuatedRounded(
+              voltagePhaseLineToLineSampledValueTemplateValue,
+              fluctuationPhaseLineToLinePercent
+            );
           }
-          meterValue.sampledValue.push({
-            ...!Utils.isUndefined(meterValuesTemplate[index].unit) ? { unit: meterValuesTemplate[index].unit } : { unit: MeterValueUnit.WATT_HOUR },
-            ...!Utils.isUndefined(meterValuesTemplate[index].context) && { context: meterValuesTemplate[index].context },
-            ...!Utils.isUndefined(meterValuesTemplate[index].measurand) && { measurand: meterValuesTemplate[index].measurand },
-            ...!Utils.isUndefined(meterValuesTemplate[index].location) && { location: meterValuesTemplate[index].location },
-            ...!Utils.isUndefined(meterValuesTemplate[index].value) ? { value: meterValuesTemplate[index].value } :
-              { value: connector.lastEnergyActiveImportRegisterValue.toString() },
-          });
-          const sampledValuesIndex = meterValue.sampledValue.length - 1;
-          const maxConsumption = Math.round(self.chargingStation.stationInfo.maxPower * 3600 / (self.chargingStation.stationInfo.powerDivider * interval));
-          if (Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxConsumption || debug) {
-            logger.error(`${self.chargingStation.logPrefix()} MeterValues measurand ${meterValue.sampledValue[sampledValuesIndex].measurand ? meterValue.sampledValue[sampledValuesIndex].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER}: connectorId ${connectorId}, transaction ${connector.transactionId}, value: ${meterValue.sampledValue[sampledValuesIndex].value}/${maxConsumption}`);
+          const defaultVoltagePhaseLineToLineMeasurandValue = Utils.getRandomFloatFluctuatedRounded(
+            Voltage.VOLTAGE_400,
+            fluctuationPercent
+          );
+          meterValue.sampledValue.push(
+            OCPP16ServiceUtils.buildSampledValue(
+              voltagePhaseLineToLineSampledValueTemplate ?? voltageSampledValueTemplate,
+              voltagePhaseLineToLineMeasurandValue ?? defaultVoltagePhaseLineToLineMeasurandValue,
+              null,
+              phaseLineToLineValue as OCPP16MeterValuePhase
+            )
+          );
+        }
+      }
+    }
+    // Power.Active.Import measurand
+    const powerSampledValueTemplate = this.chargingStation.getSampledValueTemplate(
+      connectorId,
+      OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT
+    );
+    let powerPerPhaseSampledValueTemplates: MeasurandPerPhaseSampledValueTemplates = {};
+    if (this.chargingStation.getNumberOfPhases() === 3) {
+      powerPerPhaseSampledValueTemplates = {
+        L1: this.chargingStation.getSampledValueTemplate(
+          connectorId,
+          OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT,
+          OCPP16MeterValuePhase.L1_N
+        ),
+        L2: this.chargingStation.getSampledValueTemplate(
+          connectorId,
+          OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT,
+          OCPP16MeterValuePhase.L2_N
+        ),
+        L3: this.chargingStation.getSampledValueTemplate(
+          connectorId,
+          OCPP16MeterValueMeasurand.POWER_ACTIVE_IMPORT,
+          OCPP16MeterValuePhase.L3_N
+        ),
+      };
+    }
+    if (powerSampledValueTemplate) {
+      OCPP16ServiceUtils.checkMeasurandPowerDivider(
+        this.chargingStation,
+        powerSampledValueTemplate.measurand
+      );
+      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`;
+      const powerMeasurandValues = {} as MeasurandValues;
+      const unitDivider = powerSampledValueTemplate?.unit === MeterValueUnit.KILO_WATT ? 1000 : 1;
+      const maxPower = Math.round(
+        this.chargingStation.stationInfo.maxPower / this.chargingStation.stationInfo.powerDivider
+      );
+      const maxPowerPerPhase = Math.round(
+        this.chargingStation.stationInfo.maxPower /
+          this.chargingStation.stationInfo.powerDivider /
+          this.chargingStation.getNumberOfPhases()
+      );
+      switch (this.chargingStation.getCurrentOutType()) {
+        case CurrentType.AC:
+          if (this.chargingStation.getNumberOfPhases() === 3) {
+            const defaultFluctuatedPowerPerPhase =
+              powerSampledValueTemplate.value &&
+              Utils.getRandomFloatFluctuatedRounded(
+                parseInt(powerSampledValueTemplate.value) /
+                  this.chargingStation.getNumberOfPhases(),
+                powerSampledValueTemplate.fluctuationPercent ??
+                  Constants.DEFAULT_FLUCTUATION_PERCENT
+              );
+            const phase1FluctuatedValue =
+              powerPerPhaseSampledValueTemplates?.L1?.value &&
+              Utils.getRandomFloatFluctuatedRounded(
+                parseInt(powerPerPhaseSampledValueTemplates.L1.value),
+                powerPerPhaseSampledValueTemplates.L1.fluctuationPercent ??
+                  Constants.DEFAULT_FLUCTUATION_PERCENT
+              );
+            const phase2FluctuatedValue =
+              powerPerPhaseSampledValueTemplates?.L2?.value &&
+              Utils.getRandomFloatFluctuatedRounded(
+                parseInt(powerPerPhaseSampledValueTemplates.L2.value),
+                powerPerPhaseSampledValueTemplates.L2.fluctuationPercent ??
+                  Constants.DEFAULT_FLUCTUATION_PERCENT
+              );
+            const phase3FluctuatedValue =
+              powerPerPhaseSampledValueTemplates?.L3?.value &&
+              Utils.getRandomFloatFluctuatedRounded(
+                parseInt(powerPerPhaseSampledValueTemplates.L3.value),
+                powerPerPhaseSampledValueTemplates.L3.fluctuationPercent ??
+                  Constants.DEFAULT_FLUCTUATION_PERCENT
+              );
+            powerMeasurandValues.L1 =
+              phase1FluctuatedValue ??
+              defaultFluctuatedPowerPerPhase ??
+              Utils.getRandomFloatRounded(maxPowerPerPhase / unitDivider);
+            powerMeasurandValues.L2 =
+              phase2FluctuatedValue ??
+              defaultFluctuatedPowerPerPhase ??
+              Utils.getRandomFloatRounded(maxPowerPerPhase / unitDivider);
+            powerMeasurandValues.L3 =
+              phase3FluctuatedValue ??
+              defaultFluctuatedPowerPerPhase ??
+              Utils.getRandomFloatRounded(maxPowerPerPhase / unitDivider);
+          } else {
+            powerMeasurandValues.L1 = powerSampledValueTemplate.value
+              ? Utils.getRandomFloatFluctuatedRounded(
+                  parseInt(powerSampledValueTemplate.value),
+                  powerSampledValueTemplate.fluctuationPercent ??
+                    Constants.DEFAULT_FLUCTUATION_PERCENT
+                )
+              : Utils.getRandomFloatRounded(maxPower / unitDivider);
+            powerMeasurandValues.L2 = 0;
+            powerMeasurandValues.L3 = 0;
           }
-        // Unsupported measurand
-        } else {
-          logger.info(`${self.chargingStation.logPrefix()} Unsupported MeterValues measurand ${meterValuesTemplate[index].measurand ? meterValuesTemplate[index].measurand : OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER} on connectorId ${connectorId}`);
+          powerMeasurandValues.allPhases = Utils.roundTo(
+            powerMeasurandValues.L1 + powerMeasurandValues.L2 + powerMeasurandValues.L3,
+            2
+          );
+          break;
+        case CurrentType.DC:
+          powerMeasurandValues.allPhases = powerSampledValueTemplate.value
+            ? Utils.getRandomFloatFluctuatedRounded(
+                parseInt(powerSampledValueTemplate.value),
+                powerSampledValueTemplate.fluctuationPercent ??
+                  Constants.DEFAULT_FLUCTUATION_PERCENT
+              )
+            : Utils.getRandomFloatRounded(maxPower / unitDivider);
+          break;
+        default:
+          logger.error(errMsg);
+          throw new OCPPError(ErrorType.INTERNAL_ERROR, errMsg, OCPP16RequestCommand.METER_VALUES);
+      }
+      meterValue.sampledValue.push(
+        OCPP16ServiceUtils.buildSampledValue(
+          powerSampledValueTemplate,
+          powerMeasurandValues.allPhases
+        )
+      );
+      const sampledValuesIndex = meterValue.sampledValue.length - 1;
+      const maxPowerRounded = Utils.roundTo(maxPower / unitDivider, 2);
+      if (
+        Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxPowerRounded ||
+        debug
+      ) {
+        logger.error(
+          `${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}`
+        );
+      }
+      for (
+        let phase = 1;
+        this.chargingStation.getNumberOfPhases() === 3 &&
+        phase <= this.chargingStation.getNumberOfPhases();
+        phase++
+      ) {
+        const phaseValue = `L${phase}-N`;
+        meterValue.sampledValue.push(
+          OCPP16ServiceUtils.buildSampledValue(
+            (powerPerPhaseSampledValueTemplates[`L${phase}`] as SampledValueTemplate) ??
+              powerSampledValueTemplate,
+            powerMeasurandValues[`L${phase}`] as number,
+            null,
+            phaseValue as OCPP16MeterValuePhase
+          )
+        );
+        const sampledValuesPerPhaseIndex = meterValue.sampledValue.length - 1;
+        const maxPowerPerPhaseRounded = Utils.roundTo(maxPowerPerPhase / unitDivider, 2);
+        if (
+          Utils.convertToFloat(meterValue.sampledValue[sampledValuesPerPhaseIndex].value) >
+            maxPowerPerPhaseRounded ||
+          debug
+        ) {
+          logger.error(
+            `${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}`
+          );
         }
       }
-      const payload: MeterValuesRequest = {
-        connectorId,
-        transactionId,
-        meterValue,
+    }
+    // Current.Import measurand
+    const currentSampledValueTemplate = this.chargingStation.getSampledValueTemplate(
+      connectorId,
+      OCPP16MeterValueMeasurand.CURRENT_IMPORT
+    );
+    let currentPerPhaseSampledValueTemplates: MeasurandPerPhaseSampledValueTemplates = {};
+    if (this.chargingStation.getNumberOfPhases() === 3) {
+      currentPerPhaseSampledValueTemplates = {
+        L1: this.chargingStation.getSampledValueTemplate(
+          connectorId,
+          OCPP16MeterValueMeasurand.CURRENT_IMPORT,
+          OCPP16MeterValuePhase.L1
+        ),
+        L2: this.chargingStation.getSampledValueTemplate(
+          connectorId,
+          OCPP16MeterValueMeasurand.CURRENT_IMPORT,
+          OCPP16MeterValuePhase.L2
+        ),
+        L3: this.chargingStation.getSampledValueTemplate(
+          connectorId,
+          OCPP16MeterValueMeasurand.CURRENT_IMPORT,
+          OCPP16MeterValuePhase.L3
+        ),
       };
-      await self.sendMessage(Utils.generateUUID(), payload, MessageType.CALL_MESSAGE, OCPP16RequestCommand.METER_VALUES);
-    } catch (error) {
-      self.handleRequestError(OCPP16RequestCommand.METER_VALUES, error);
     }
+    if (currentSampledValueTemplate) {
+      OCPP16ServiceUtils.checkMeasurandPowerDivider(
+        this.chargingStation,
+        currentSampledValueTemplate.measurand
+      );
+      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`;
+      const currentMeasurandValues: MeasurandValues = {} as MeasurandValues;
+      let maxAmperage: number;
+      switch (this.chargingStation.getCurrentOutType()) {
+        case CurrentType.AC:
+          maxAmperage = ACElectricUtils.amperagePerPhaseFromPower(
+            this.chargingStation.getNumberOfPhases(),
+            this.chargingStation.stationInfo.maxPower /
+              this.chargingStation.stationInfo.powerDivider,
+            this.chargingStation.getVoltageOut()
+          );
+          if (this.chargingStation.getNumberOfPhases() === 3) {
+            const defaultFluctuatedAmperagePerPhase =
+              currentSampledValueTemplate.value &&
+              Utils.getRandomFloatFluctuatedRounded(
+                parseInt(currentSampledValueTemplate.value),
+                currentSampledValueTemplate.fluctuationPercent ??
+                  Constants.DEFAULT_FLUCTUATION_PERCENT
+              );
+            const phase1FluctuatedValue =
+              currentPerPhaseSampledValueTemplates?.L1?.value &&
+              Utils.getRandomFloatFluctuatedRounded(
+                parseInt(currentPerPhaseSampledValueTemplates.L1.value),
+                currentPerPhaseSampledValueTemplates.L1.fluctuationPercent ??
+                  Constants.DEFAULT_FLUCTUATION_PERCENT
+              );
+            const phase2FluctuatedValue =
+              currentPerPhaseSampledValueTemplates?.L2?.value &&
+              Utils.getRandomFloatFluctuatedRounded(
+                parseInt(currentPerPhaseSampledValueTemplates.L2.value),
+                currentPerPhaseSampledValueTemplates.L2.fluctuationPercent ??
+                  Constants.DEFAULT_FLUCTUATION_PERCENT
+              );
+            const phase3FluctuatedValue =
+              currentPerPhaseSampledValueTemplates?.L3?.value &&
+              Utils.getRandomFloatFluctuatedRounded(
+                parseInt(currentPerPhaseSampledValueTemplates.L3.value),
+                currentPerPhaseSampledValueTemplates.L3.fluctuationPercent ??
+                  Constants.DEFAULT_FLUCTUATION_PERCENT
+              );
+            currentMeasurandValues.L1 =
+              phase1FluctuatedValue ??
+              defaultFluctuatedAmperagePerPhase ??
+              Utils.getRandomFloatRounded(maxAmperage);
+            currentMeasurandValues.L2 =
+              phase2FluctuatedValue ??
+              defaultFluctuatedAmperagePerPhase ??
+              Utils.getRandomFloatRounded(maxAmperage);
+            currentMeasurandValues.L3 =
+              phase3FluctuatedValue ??
+              defaultFluctuatedAmperagePerPhase ??
+              Utils.getRandomFloatRounded(maxAmperage);
+          } else {
+            currentMeasurandValues.L1 = currentSampledValueTemplate.value
+              ? Utils.getRandomFloatFluctuatedRounded(
+                  parseInt(currentSampledValueTemplate.value),
+                  currentSampledValueTemplate.fluctuationPercent ??
+                    Constants.DEFAULT_FLUCTUATION_PERCENT
+                )
+              : Utils.getRandomFloatRounded(maxAmperage);
+            currentMeasurandValues.L2 = 0;
+            currentMeasurandValues.L3 = 0;
+          }
+          currentMeasurandValues.allPhases = Utils.roundTo(
+            (currentMeasurandValues.L1 + currentMeasurandValues.L2 + currentMeasurandValues.L3) /
+              this.chargingStation.getNumberOfPhases(),
+            2
+          );
+          break;
+        case CurrentType.DC:
+          maxAmperage = DCElectricUtils.amperage(
+            this.chargingStation.stationInfo.maxPower /
+              this.chargingStation.stationInfo.powerDivider,
+            this.chargingStation.getVoltageOut()
+          );
+          currentMeasurandValues.allPhases = currentSampledValueTemplate.value
+            ? Utils.getRandomFloatFluctuatedRounded(
+                parseInt(currentSampledValueTemplate.value),
+                currentSampledValueTemplate.fluctuationPercent ??
+                  Constants.DEFAULT_FLUCTUATION_PERCENT
+              )
+            : Utils.getRandomFloatRounded(maxAmperage);
+          break;
+        default:
+          logger.error(errMsg);
+          throw new OCPPError(ErrorType.INTERNAL_ERROR, errMsg, OCPP16RequestCommand.METER_VALUES);
+      }
+      meterValue.sampledValue.push(
+        OCPP16ServiceUtils.buildSampledValue(
+          currentSampledValueTemplate,
+          currentMeasurandValues.allPhases
+        )
+      );
+      const sampledValuesIndex = meterValue.sampledValue.length - 1;
+      if (
+        Utils.convertToFloat(meterValue.sampledValue[sampledValuesIndex].value) > maxAmperage ||
+        debug
+      ) {
+        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}`
+        );
+      }
+      for (
+        let phase = 1;
+        this.chargingStation.getNumberOfPhases() === 3 &&
+        phase <= this.chargingStation.getNumberOfPhases();
+        phase++
+      ) {
+        const phaseValue = `L${phase}`;
+        meterValue.sampledValue.push(
+          OCPP16ServiceUtils.buildSampledValue(
+            (currentPerPhaseSampledValueTemplates[phaseValue] as SampledValueTemplate) ??
+              currentSampledValueTemplate,
+            currentMeasurandValues[phaseValue] as number,
+            null,
+            phaseValue as OCPP16MeterValuePhase
+          )
+        );
+        const sampledValuesPerPhaseIndex = meterValue.sampledValue.length - 1;
+        if (
+          Utils.convertToFloat(meterValue.sampledValue[sampledValuesPerPhaseIndex].value) >
+            maxAmperage ||
+          debug
+        ) {
+          logger.error(
+            `${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}`
+          );
+        }
+      }
+    }
+    // Energy.Active.Import.Register measurand (default)
+    const energySampledValueTemplate = this.chargingStation.getSampledValueTemplate(connectorId);
+    if (energySampledValueTemplate) {
+      OCPP16ServiceUtils.checkMeasurandPowerDivider(
+        this.chargingStation,
+        energySampledValueTemplate.measurand
+      );
+      const unitDivider =
+        energySampledValueTemplate?.unit === MeterValueUnit.KILO_WATT_HOUR ? 1000 : 1;
+      const maxEnergyRounded = Utils.roundTo(
+        ((this.chargingStation.stationInfo.maxPower /
+          this.chargingStation.stationInfo.powerDivider) *
+          interval) /
+          (3600 * 1000),
+        2
+      );
+      const energyValueRounded = energySampledValueTemplate.value
+        ? // Cumulate the fluctuated value around the static one
+          Utils.getRandomFloatFluctuatedRounded(
+            parseInt(energySampledValueTemplate.value),
+            energySampledValueTemplate.fluctuationPercent ?? Constants.DEFAULT_FLUCTUATION_PERCENT
+          )
+        : Utils.getRandomFloatRounded(maxEnergyRounded);
+      // Persist previous value on connector
+      if (
+        connector &&
+        !Utils.isNullOrUndefined(connector.energyActiveImportRegisterValue) &&
+        connector.energyActiveImportRegisterValue >= 0 &&
+        !Utils.isNullOrUndefined(connector.transactionEnergyActiveImportRegisterValue) &&
+        connector.transactionEnergyActiveImportRegisterValue >= 0
+      ) {
+        connector.energyActiveImportRegisterValue += energyValueRounded;
+        connector.transactionEnergyActiveImportRegisterValue += energyValueRounded;
+      } else {
+        connector.energyActiveImportRegisterValue = 0;
+        connector.transactionEnergyActiveImportRegisterValue = 0;
+      }
+      meterValue.sampledValue.push(
+        OCPP16ServiceUtils.buildSampledValue(
+          energySampledValueTemplate,
+          Utils.roundTo(
+            this.chargingStation.getEnergyActiveImportRegisterByTransactionId(transactionId) /
+              unitDivider,
+            2
+          )
+        )
+      );
+      const sampledValuesIndex = meterValue.sampledValue.length - 1;
+      if (energyValueRounded > maxEnergyRounded || debug) {
+        logger.error(
+          `${this.chargingStation.logPrefix()} MeterValues measurand ${
+            meterValue.sampledValue[sampledValuesIndex].measurand ??
+            OCPP16MeterValueMeasurand.ENERGY_ACTIVE_IMPORT_REGISTER
+          }: connectorId ${connectorId}, transaction ${
+            connector.transactionId
+          }, value: ${energyValueRounded}/${maxEnergyRounded}, duration: ${Utils.roundTo(
+            interval / (3600 * 1000),
+            4
+          )}h`
+        );
+      }
+    }
+    const payload: MeterValuesRequest = {
+      connectorId,
+      transactionId,
+      meterValue: [meterValue],
+    };
+    await this.sendMessage(Utils.generateUUID(), payload, OCPP16RequestCommand.METER_VALUES);
+  }
+
+  public async sendTransactionBeginMeterValues(
+    connectorId: number,
+    transactionId: number,
+    beginMeterValue: OCPP16MeterValue
+  ): Promise<void> {
+    const payload: MeterValuesRequest = {
+      connectorId,
+      transactionId,
+      meterValue: [beginMeterValue],
+    };
+    await this.sendMessage(Utils.generateUUID(), payload, OCPP16RequestCommand.METER_VALUES);
+  }
+
+  public async sendTransactionEndMeterValues(
+    connectorId: number,
+    transactionId: number,
+    endMeterValue: OCPP16MeterValue
+  ): Promise<void> {
+    const payload: MeterValuesRequest = {
+      connectorId,
+      transactionId,
+      meterValue: [endMeterValue],
+    };
+    await this.sendMessage(Utils.generateUUID(), payload, OCPP16RequestCommand.METER_VALUES);
   }
 
-  public async sendError(messageId: string, error: OCPPError, commandName: OCPP16RequestCommand | OCPP16IncomingRequestCommand): Promise<unknown> {
-    // Send error
-    return this.sendMessage(messageId, error, MessageType.CALL_ERROR_MESSAGE, commandName);
+  public async sendDiagnosticsStatusNotification(
+    diagnosticsStatus: OCPP16DiagnosticsStatus
+  ): Promise<void> {
+    const payload: DiagnosticsStatusNotificationRequest = {
+      status: diagnosticsStatus,
+    };
+    await this.sendMessage(
+      Utils.generateUUID(),
+      payload,
+      OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION
+    );
   }
 }