cariflex/tools/EVerest-main/docs/source/reference/EVerest_API/powermeter_API.yaml

---
asyncapi: 3.0.0
id: 'pionix:de:everest:powermeter_API'
info:
  title: 'EVerest API definition for powermeters'
  version: 1.0.0
  description: >-
    API for EVerest API clients implementing powermeter.

  license:
    name: Apache-2.0
    url: https://opensource.org/licenses/Apache-2.0
  tags:
    - name: EVerest
    - name: powermeter
servers:
  default:
    pathname: 'everest_api/1/powermeter/{module_id}'
    host: 'localhost:1883'
    description: default local MQTT
    protocol: mqtt
    variables:
      module_id:
        description: The ID of the module as defined in the EVerest config file.
defaultContentType: application/json


channels:
  receive_request_start_transaction:
    address: 'e2m/start_transaction'
    messages:
      receive_request_start_transaction:
        $ref: '#/components/messages/receive_request_start_transaction'
  send_reply_start_transaction:
    address: null
    description: Dynamically defined channel. Used to reply to a start_transaction message.
    messages:
      send_reply_start_transaction:
        $ref: '#/components/messages/send_reply_start_transaction'
  receive_request_stop_transaction:
    address: 'e2m/stop_transaction'
    messages:
      receive_request_stop_transaction:
        $ref: '#/components/messages/receive_request_stop_transaction'
  send_reply_stop_transaction:
    title: 'Reply stop transaction'
    address: null
    description: Dynamically defined channel. Used to reply to a stop_transaction message.
    messages:
      send_reply_stop_transaction:
        $ref: '#/components/messages/send_reply_stop_transaction'

  send_powermeter_values:
    address: 'm2e/powermeter_values'
    messages:
      send_powermeter_values:
        $ref: '#/components/messages/send_powermeter_values'
  send_public_key_ocmf:
    address: 'm2e/public_key_ocmf'
    messages:
      send_public_key_ocmf:
        $ref: '#/components/messages/send_public_key_ocmf'


  receive_heartbeat:
    address: 'e2m/heartbeat'
    messages:
      receive_heartbeat:
        $ref: '#/components/messages/receive_heartbeat'
  send_communication_check:
    address: 'm2e/communication_check'
    messages:
      send_communication_check:
        $ref: '#/components/messages/send_communication_check'



operations:
  receive_request_start_transaction:
    title: 'Request start transaction'
    summary: Request to reply.
    action: receive
    description: This operation is used to handle the request to start a new transaction on the powermeter (for signed metering according to German Eichrecht).
    channel:
      $ref: '#/channels/receive_request_start_transaction'
    reply:
      address:
        location: "$message.header#/replyTo"
      channel:
        $ref: '#/channels/send_reply_start_transaction'
  send_reply_start_transaction:
    title: 'Send reply for start transaction'
    summary: Request to reply.
    description: This operation is used to handle the request to start a new transaction on the powermeter (for signed metering according to German Eichrecht).
    action: send
    channel:
      $ref: '#/channels/send_reply_start_transaction'
  receive_request_stop_transaction:
    title: 'Request stop transaction'
    summary: Request to reply.
    description: This operation is used to handle the request to stop the transaction on the powermeter and ask for the signed metering information in a reply.
    action: receive
    channel:
      $ref: '#/channels/receive_request_stop_transaction'
    reply:
      address:
        location: "$message.header#/replyTo"
      channel:
        $ref: '#/channels/send_reply_stop_transaction'
  send_reply_stop_transaction:
    title: 'Send reply for stop transaction'
    summary: Request to reply.
    description: This operation is used to handle the request to stop the transaction on the powermeter and ask for the signed metering information in a reply.
    action: send
    channel:
      $ref: '#/channels/send_reply_stop_transaction'

  send_powermeter_values:
    title: 'Send powermeter values'
    summary: 'Direction: Module to EVerest'
    description: This operation is used to send a dataset of measured values. The timestamp and the imported energy (in Wh) are required. Other values are optional.
    action: send
    channel:
      $ref: '#/channels/send_powermeter_values'
  send_public_key_ocmf:
    title: 'Send the public key'
    action: send
    channel:
      $ref: '#/channels/send_public_key_ocmf'


  receive_heartbeat:
    title: 'Receive heartbeat'
    action: receive
    channel:
      $ref: '#/channels/receive_heartbeat'
  send_communication_check:
    title: 'Send communication check'
    action: send
    channel:
      $ref: '#/channels/send_communication_check'


components:
  messages:
    receive_request_start_transaction:
      name: start_transaction_req
      title: 'Start transaction request message'
      summary: The start transaction request message contains the required input parameter for starting an OCMF transaction. These values will be included in the signed OCMF packet of the stop transaction reply.
      contentType: application/json
      payload:
        type: object
        additionalProperties: true
        required:
          - payload
        properties:
          headers:
            type: object
            properties:
              replyTo:
                type: string
                description: 'The topic to which to send the reply. If this information is missing, the command will still be accepted, but no response will be sent.'
          payload:
            $ref: '#/components/schemas/StartTransactionRequest'
    send_reply_start_transaction:
      name: start_transaction_reply
      title: 'Start transaction reply message'
      summary: The start transaction reply message contains the request status. It indicates whether the transaction could be started successfully or not. Further values may be added to the message depending on the value of the status.
      contentType: application/json
      payload:
        $ref: '#/components/schemas/StartTransactionReply'
      examples:
        - summary: ""
          payload:
            status: "OK"
            error: "string"
            transaction_min_stop_time: "2019-08-24T14:15:22Z"
            transaction_max_stop_time: "2019-08-24T14:15:22Z"
    receive_request_stop_transaction:
      name: stop_transaction_req
      title: 'Stop transaction request message'
      summary: The stop transaction request message contains the transaction id to stop the corresponding transaction.
      contentType: application/json
      payload:
        type: object
        additionalProperties: true
        required:
          - payload
        properties:
          headers:
            type: object
            properties:
              replyTo:
                type: string
                description: 'The topic to which to send the reply. If this information is missing, the command will still be accepted, but no response will be sent.'
          payload:
            type: object
            additionalProperties: true
            required:
              - transaction_id
            properties:
              transaction_id:
                type: string
                description: 'Transaction id received in start transaction request.'
    send_reply_stop_transaction:
      name: stop_transaction_reply
      title: 'Stop transaction reply message'
      summary: The stop transaction reply message contains the request status. It indicates whether the transaction could be stopped successfully or not. If successful the signed meter value report must be provided in this message too.
      contentType: application/json
      payload:
        $ref: '#/components/schemas/StopTransactionReply'
      examples:
        - summary: ""
          payload:
            status: OK
            signed_meter_value:
              signed_meter_data: string
              signing_method: string
              encoding_method: string
              public_key: string
              timestamp: '2019-08-24T14:15:22Z'
            error: string

    send_powermeter_values:
      name: send_powermeter_values
      title: 'Send powermeter values'
      summary: The send powermeter values message contains the measured dataset. It requires a timestamp and the imported energy in Wh at least. Other values are optional.
      contentType: application/json
      payload:
        $ref: '#/components/schemas/Powermeter'
      examples:
        - summary: ""
          payload:
            current_A:
              L1: 0
              L2: 0
              L3: 0
              N: 0
            energy_Wh_import:
              L1: 0
              L2: 0
              L3: 0
              total: 0
            frequency_Hz:
              L1: 50.099517822265625
              L2: 50.099517822265625
              L3: 50.099517822265625
            meter_id: THE_POWERMETER
            phase_seq_error: false
            power_W:
              L1: 0
              L2: 0
              L3: 0
              total: 0
            timestamp: '2024-09-27T07:21:14.127Z'
            voltage_V:
              L1: 228.47914123535156
              L2: 228.47914123535156
              L3: 228.47914123535156
    send_public_key_ocmf:
      name: send_public_key_ocmf
      title: 'Send the public key'
      summary: Provide the public key used to sign the OCMF data
      contentType: application/json
      payload:
        $ref: '#/components/schemas/SendPublicKeyOCMF'
      examples:
        - summary: ""
          payload:
            "THE_KEY"


    receive_heartbeat:
      name: receive_heartbeat
      title: 'Receive heartbeat'
      summary: Heartbeat produced by EVerest as configured via cfg_heartbeat_interval_ms in the EVerest configuration
      contentType: application/json
      payload:
        $ref: '#/components/schemas/HeartBeatId'
      examples:
        - summary: "Heartbeat"
          payload: 42

    send_communication_check:
      name: send_communication_check
      title: 'Send communication check'
      summary: Signal to EVerest that communication is good or check shall be stopped
      contentType: application/json
      payload:
        $ref: '#/components/schemas/CommunicationCheck'
      examples:
        - summary: ""
          payload:
            true


  schemas:
    OCMFIdentificationFlags:
      description: |
        - RFID_NONE: No assignment via RFID
        - RFID_PLAIN: Assignment via external RFID card reader
        - RFID_RELATED: Assignment via protected RFID card reader
        - RFID_PSK: A previously known shared key (pre-shared key) was used, e.g. with a secured RFID card.
        - OCPP_NONE: No user assignment by OCPP
        - OCPP_RS: Assignment by OCPP RemoteStart method
        - OCPP_AUTH: Assignment by OCPP Authorize method
        - OCPP_RS_TLS: Assignment by OCPP RemoteStart method, obtained via a secured TLS connection.
        - OCPP_AUTH_TLS: Assignment by OCPP Authorize method, obtained via a secured TLS connection.
        - OCPP_CACHE: Assignment by authorization cache of OCPP
        - OCPP_WHITELIST: Assignment by whitelist from OCPP
        - OCPP_CERTIFIED: A certificate of the backend was used which certifies the user mapping.
        - ISO15118_NONE: no user assignment by ISO 15118
        - ISO15118_PNC: Plug & Charge was used
        - PLMN_NONE: no user assignment
        - PLMN_RING: call
        - PLMN_SMS: short message
      type: string
      enum:
        - RFID_NONE
        - RFID_PLAIN
        - RFID_RELATED
        - RFID_PSK
        - OCPP_NONE
        - OCPP_RS
        - OCPP_AUTH
        - OCPP_RS_TLS
        - OCPP_AUTH_TLS
        - OCPP_CACHE
        - OCPP_WHITELIST
        - OCPP_CERTIFIED
        - ISO15118_NONE
        - ISO15118_PNC
        - PLMN_NONE
        - PLMN_RING
        - PLMN_SMS
    OCMFIdentificationLevel:
      description: |
        - NONE: There is no user assignment. The other data for user assignment have no significance.
        - HEARSAY: The assignment is unsecured; e.g. by reading an RFID UID.
        - TRUSTED: The mapping can be trusted to some extent, but there is no absolute reliability. Example: Authorization by backend.
        - VERIFIED: The assignment has been verified by the signature component and special measures.
        - CERTIFIED: The assignment was verified by the signature component using a cryptographic signature that certifies the assignment.
        - SECURE: The mapping was established by a secure feature (e.g. secure RFID card, ISO 15118 with plug and charge, etc.).
        - MISMATCH: Error; UIDs do not match.
        - INVALID: Error; certificate not correct (check negative).
        - OUTDATED: Error; referenced trust certificate expired.
        - UNKNOWN: Certificate could not be successfully verified (no matching trust certificate found).
      type: string
      enum:
        - NONE
        - HEARSAY
        - TRUSTED
        - VERIFIED
        - CERTIFIED
        - SECURE
        - MISMATCH
        - INVALID
        - OUTDATED
        - UNKNOWN
    OCMFIdentificationType:
      description: |
        - NONE: No assignment available
        - DENIED: Assignment currently not available (due to two-factor authorization)
        - UNDEFINED: Type not specified
        - ISO14443: UID of an RFID card according to ISO 14443. Represented as 4 or 7 bytes in hexadecimal notation.
        - ISO15693: UID of an RFID card according to ISO 15693. Represented as 8 bytes in hexadecimal notation.
        - EMAID: Electro-Mobility-Account-ID according to ISO/IEC 15118 (string with length 14 or 15)
        - EVCCID: ID of an electric vehicle according to ISO/IEC 15118 (maximum length 6 characters)
        - EVCOID: EV Contract ID according to DIN 91286.
        - ISO7812: Identification card format according to ISO/IEC 7812 (credit and bank cards, etc.)
        - CARD_TXN_NR: Card transaction number (CardTxNbr) for a payment with credit or bank card used in a terminal at the charging point.
        - CENTRAL: Centrally generated ID. No exact format defined, can be e.g. a UUID. (OCPP 2.0)
        - CENTRAL_1: Centrally generated ID, e.g. by start via SMS. No exact format defined. (until OCPP 1.6)
        - CENTRAL_2: Centrally generated ID, e.g. by operator start. No exact format defined. (until OCPP 1.6)
        - LOCAL: Locally generated ID. No exact format defined, might be e.g. a UUID. (OCPP 2.0)
        - LOCAL_1: Locally generated ID, e.g. ID generated internally by the charge point. No exact format defined. (until OCPP 1.6)
        - LOCAL_2: Locally generated ID, for other cases. No exact format defined. (until OCPP 1.6)
        - PHONE_NUMBER: International phone number with leading "+".
        - KEY_CODE: User-related private key code. No exact format defined.
      type: string
      enum:
        - NONE
        - DENIED
        - UNDEFINED
        - ISO14443
        - ISO15693
        - EMAID
        - EVCCID
        - EVCOID
        - ISO7812
        - CARD_TXN_NR
        - CENTRAL
        - CENTRAL_1
        - CENTRAL_2
        - LOCAL
        - LOCAL_1
        - LOCAL_2
        - PHONE_NUMBER
        - KEY_CODE
    OCMFUserIdentificationStatus:
      description: |
        General status for user assignment
        - ASSIGNED: user successfully assigned
        - NOT_ASSIGNED: user not assigned
      type: string
      enum:
        - ASSIGNED
        - NOT_ASSIGNED
    Powermeter:
      description: Measured dataset (AC or DC)
      type: object
      additionalProperties: true
      required:
        - timestamp
        - energy_Wh_import
      properties:
        timestamp:
          description: Timestamp of measurement
          type: string
          format: date-time
        meter_id:
          description: A (user defined) meter id (e.g. id printed on the case)
          type: string
        phase_seq_error:
          description: "AC only: true for 3 phase rotation error (ccw)"
          type: boolean
        energy_Wh_import:
          description: Imported energy in Wh (from grid)
          type: object
          $ref: '#/components/schemas/units/types/Energy'
        energy_Wh_export:
          description: Exported energy in Wh (to grid)
          type: object
          $ref: '#/components/schemas/units/types/Energy'
        power_W:
          description:
            Instantaneous power in Watt. Negative values are exported, positive
            values imported Energy.
          type: object
          $ref: '#/components/schemas/units/types/Power'
        voltage_V:
          description: Voltage in Volts
          type: object
          $ref: '#/components/schemas/units/types/Voltage'
        VAR:
          description: Reactive power VAR
          type: object
          $ref: '#/components/schemas/units/types/ReactivePower'
        current_A:
          description: Current in ampere
          type: object
          $ref: '#/components/schemas/units/types/Current'
        frequency_Hz:
          description: Grid frequency in Hertz
          type: object
          $ref: '#/components/schemas/units/types/Frequency'
        # Extension for individual signed meter values
        energy_Wh_import_signed:
          description: Imported energy in Wh (from grid)
          type: object
          $ref: '#/components/schemas/units_signed/types/Energy'
        energy_Wh_export_signed:
          description: Exported energy in Wh (to grid)
          type: object
          $ref: '#/components/schemas/units_signed/types/Energy'
        power_W_signed:
          description:
            Instantaneous power in Watt. Negative values are exported, positive
            values imported Energy.
          type: object
          $ref: '#/components/schemas/units_signed/types/Power'
        voltage_V_signed:
          description: Voltage in Volts
          type: object
          $ref: '#/components/schemas/units_signed/types/Voltage'
        VAR_signed:
          description: Reactive power VAR
          type: object
          $ref: '#/components/schemas/units_signed/types/ReactivePower'
        current_A_signed:
          description: Current in ampere
          type: object
          $ref: '#/components/schemas/units_signed/types/Current'
        frequency_Hz_signed:
          description: Grid frequency in Hertz
          type: object
          $ref: '#/components/schemas/units_signed/types/Frequency'
        signed_meter_value:
          description: >-
            Signed collection of instantaneous meter values if supported by the meter.
            This is intended for meters that only support signing a collection of meter values.
          type: object
          $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
        temperatures:
          description: >-
            An array of temperature sensors expressed in C, their definition and meaning is product specific
          type: array
          items:
            type: object
            $ref: '#/components/schemas/Temperature'
    SendPublicKeyOCMF:
      type: string
      description: "The public key as string used to sign the OCMF data"
    StartTransactionReply:
      description: Return value when a transaction is started.
      type: object
      additionalProperties: true
      required:
        - status
      properties:
        status:
          description: Response status that indicates whether the transaction start request could successfully be performed.
          $ref: '#/components/schemas/TransactionStatus'
        error:
          description: If status is not OK, a verbose error message.
          type: string
        transaction_min_stop_time:
          description: Earliest point in time the started transaction can be stopped again (if a minimum duration is required by the meter); yields a RFC3339 timestamp.
          type: string
          format: date-time
        transaction_max_stop_time:
          description:  Deadline for the transaction to be stopped again (if a minimum duration is required by the meter); yields a RFC3339 timestamp.
          type: string
          format: date-time
    StartTransactionRequest:
      type: object
      additionalProperties: true
      required:
        - evse_id
        - transaction_id
        - identification_status
        - identification_type
        - identification_flags
      properties:
        evse_id:
          description: Id of this EVSE
          type: string
        transaction_id:
          description: OCPP transaction UUID
          type: string
        identification_status:
          description: >-
            OCMF Identification Status (IS): General status for user assignment
          type: string
          $ref: '#/components/schemas/OCMFUserIdentificationStatus'
        identification_level:
          description: >-
            OCMF Identification Level (IL): Encoded overall status of the user assignment
          type: string
          $ref: '#/components/schemas/OCMFIdentificationLevel'
        identification_flags:
          description: >-
            OCMF Identification Flags (IF): Detailed statements about the user assignment, represented by one or more identifiers
          type: array
          items:
            type: string
            $ref: '#/components/schemas/OCMFIdentificationFlags'
          minItems: 0
          maxItems: 4
        identification_type:
          description: >-
            OCMF Identification Type (IT): Type of identification data
          type: string
          $ref: '#/components/schemas/OCMFIdentificationType'
        identification_data:
          description: >-
            OCMF Identification Data (ID): The actual identification data e.g. a hex-coded UID according to ISO 14443.
          type: string
        tariff_text:
          description: >-
            A textual description used to identify a unique tariff.
            This field is intended for the tariff designation in "Direct Payment" use case.
          type: string
          minLength: 0
          maxLength: 250
    StopTransactionReply:
      description: Report returned when a signed transaction is requested to stop. If successful, includes the signed meter value object. In case of an error, an additional error message can be provided.
      type: object
      additionalProperties: true
      required:
        - status
      properties:
        status:
          description: Response status that indicates whether the transaction stop request could successfully be performed.
          $ref: '#/components/schemas/TransactionStatus'
        start_signed_meter_value:
          description: The signed meter value report for start of transaction. Needs to be filled if meter provides separate values for start and stop.
          type: object
          $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
        signed_meter_value:
          description: The signed meter value report of the stopped transaction. Must be provided if status is OK.
          type: object
          $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
        error:
          description: If status is not OK, a verbose error message.
          type: string
    Temperature:
      description: Temperature sensor expressed in C and a description (vendor specific) allowing to identify its purpose or meaning
      type: object
      additionalProperties: true
      required:
        - temperature
      properties:
        temperature:
          description: The temperature of the sensor measured in C
          type: number
        identification:
          description: A (vendor specific) ID if required
          type: string
        location:
          description: Location of the measurement
          type: string
    TransactionStatus:
      description: Status of a start or stop transaction - used in start or stop transaction reply.
      type: string
      enum:
          - OK
          - NOT_SUPPORTED
          - UNEXPECTED_ERROR
    units:
      description: Unit types
      types:
        Current:
          description: Current in Ampere
          type: object
          additionalProperties: true
          properties:
            DC:
              description: DC current
              type: number
            L1:
              description: AC L1 value only
              type: number
            L2:
              description: AC L2 value only
              type: number
            L3:
              description: AC L3 value only
              type: number
            N:
              description: AC Neutral value only
              type: number
        Voltage:
          description: Voltage in Volt
          type: object
          additionalProperties: true
          properties:
            DC:
              description: DC voltage
              type: number
            L1:
              description: AC L1 value only
              type: number
            L2:
              description: AC L2 value only
              type: number
            L3:
              description: AC L3 value only
              type: number
        Frequency:
          description: "AC only: Frequency in Hertz"
          type: object
          additionalProperties: true
          required:
            - L1
          properties:
            L1:
              description: AC L1 value
              type: number
            L2:
              description: AC L2 value
              type: number
            L3:
              description: AC L3 value
              type: number
        Power:
          description:
            Instantaneous power in Watt. Negative values are exported, positive
            values imported Energy.
          type: object
          additionalProperties: true
          required:
            - total
          properties:
            total:
              description: DC / AC Sum value
              type: number
            L1:
              description: AC L1 value only
              type: number
            L2:
              description: AC L2 value only
              type: number
            L3:
              description: AC L3 value only
              type: number
        Energy:
          description: Energy in Wh.
          type: object
          additionalProperties: true
          required:
            - total
          properties:
            total:
              description: DC / AC Sum value (which is relevant for billing)
              type: number
            L1:
              description: AC L1 value only
              type: number
            L2:
              description: AC L2 value only
              type: number
            L3:
              description: AC L3 value only
              type: number
        ReactivePower:
          description: Reactive power VAR
          type: object
          additionalProperties: true
          required:
            - total
          properties:
            total:
              description: VAR total
              type: number
            L1:
              description: VAR phase A
              type: number
            L2:
              description: VAR phase B
              type: number
            L3:
              description: VAR phase C
              type: number
    units_signed:
      description: Unit types signed
      types:
        SignedMeterValue:
          description: Representation of a signed meter value
          type: object
          additionalProperties: true
          required:
            - signed_meter_data
            - signing_method
            - encoding_method
          properties:
            signed_meter_data:
              description: Signed meter data (encoded in a string representation with eg. Base64)
              type: string
            signing_method:
              description: Method used to create the signature
              type: string
            encoding_method:
              description: Method used to encode the meter values before signing them
              type: string
            public_key:
              description: Public key (encoded in a string representation with eg. Base64)
              type: string
            timestamp:
              description: Timestamp of measurement
              type: string
              format: date-time
        Current:
          description: Current in Ampere
          type: object
          additionalProperties: true
          properties:
            DC:
              description: DC current
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L1:
              description: AC L1 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L2:
              description: AC L2 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L3:
              description: AC L3 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            N:
              description: AC Neutral value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
        Voltage:
          description: Voltage in Volt
          type: object
          additionalProperties: true
          properties:
            DC:
              description: DC voltage
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L1:
              description: AC L1 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L2:
              description: AC L2 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L3:
              description: AC L3 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
        Frequency:
          description: "AC only: Frequency in Hertz"
          type: object
          additionalProperties: true
          properties:
            L1:
              description: AC L1 value
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L2:
              description: AC L2 value
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L3:
              description: AC L3 value
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
        Power:
          description:
            Instantaneous power in Watt. Negative values are exported, positive
            values imported Energy.
          type: object
          additionalProperties: true
          properties:
            total:
              description: DC / AC Sum value
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L1:
              description: AC L1 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L2:
              description: AC L2 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L3:
              description: AC L3 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
        Energy:
          description: Energy in Wh.
          type: object
          additionalProperties: true
          properties:
            total:
              description: DC / AC Sum value (which is relevant for billing)
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L1:
              description: AC L1 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L2:
              description: AC L2 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L3:
              description: AC L3 value only
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
        ReactivePower:
          description: Reactive power VAR
          type: object
          additionalProperties: true
          properties:
            total:
              description: VAR total
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L1:
              description: VAR phase A
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L2:
              description: VAR phase B
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'
            L3:
              description: VAR phase C
              type: object
              $ref: '#/components/schemas/units_signed/types/SignedMeterValue'

    CommunicationCheck:
      type: boolean
      description: "Send 'true' at least every 'cfg_communication_check_to_s' seconds to signal module is alive. Send 'false' to stop communication check'"

    HeartBeatId:
      type: integer
      description: "64bit unsigned integer. The id of every heartbeat increases by 1 and overflows when the maximum representable value is reached"