# Transmission of meter readings from LF — MSB-MELO view The LF or NB transmits the meter reading to the MSB of the metering location that was assigned to the metering location at the time of the reading. ## Process flow from the perspective of the MSB (MSB-MELO) \nSystem diagram: Übermittlung von Zählerständen vom LF — view of MSB\n\n\nCustomer backend system\n\nMACO APP · MSB (Messlokat…\n\nMarket partner\n\n\n\n1. Zählerstand\n(Messlokation)\n\nLF\n\nAS4\n13017\n\nLoad data for the incoming\ncheck\n\n\n3 read APIs called\n\nAPI\nlisted at the step\n\nAPERAK check: MSCONS\n\n\nCreate transaction\n\n\nCreate process data\n\nAPI\n\nLoad data for processing\n\n\n2 read APIs called\n\nAPI\nlisted at the step\n"} gesamt={"\nSequence diagram: Übermittlung von Zählerständen vom LF — view of MSB\n\n\nBackend (customer)\n\n\nMACO APP · MSB (Messlokat…\n\n\nLF\n\n\n1. Zählerstand (Messlokation)\nAS4 · PI 13017\n\nCreate transaction\nCreate process data\n"} titel="MSB-MELO" /> ## Process steps ### Meter reading (metering location)
**Check identifiers** - [13017](/en/schnittstellen/202604/pruefi/MSCONS/PI_13017) — Meter reading (electricity) · AS4
**Flow**
  1. Message from **LF** · AS4
  2. **Load data for the incoming check** - [Read market location](/en/api/202604/backend-lesen/getmarketlocationbasic#marktlokation-lesen) `GET /getMarketLocationBasic` Try it - [Read metering location](/en/api/202604/backend-lesen/getmeterlocationbasic#messlokation-lesen) `GET /getMeterLocationBasic` Try it - [Read meter](/en/api/202604/backend-lesen/getcounterbasic#zahler-lesen) `GET /getCounterBasic` Try it
  3. **APERAK checks** - `13017` → `MSCONS`
  4. **Write endpoint** - Transaction created — [Create process data](/en/api/202604/backend-schreiben-msb/createprocessdata#prozessdaten-erstellen) `POST /createProcessData` Try it out Creates a new transaction in the backend with the data of the incoming message.
  5. **Load data for processing** - `LESEN_ENERGIEMENGE_ZAEHLERSTAND_BASIS` - [Read meter](/en/api/202604/backend-lesen/getcounterbasic#zahler-lesen) `GET /getCounterBasic` Try it
## Process information Wording of the consolidated version, profile ch. 2.9.1.1, p. 58.
  1. ### Preconditions - The MSB of the metering location knows the metering location. - As part of a reading for kME without RLM or mME, the LF or NB has a self-recorded meter reading or a meter reading from a customer reading.
  2. ### Results The meter reading previously plausibility-checked by the MSB of the metering location is only transmitted to the MSB of the market location once a trigger for transmission (chapter 2.5.5. “Presentation of the values to be transmitted”) exists.
  3. ### First message **LF** sends “Meter reading (metering location)” (step 1). From here on, it is the turn of the party involved on this page.
  4. ### Objective The LF or NB has transmitted the meter reading to the MSB of the metering location.
## Other views of the process The same process through the eyes of the other parties involved: the same steps, each read from their point of view. - [View LF](/en/prozessdoku/202604/LF/WiM-Teil2-uebermittlung-von-zaehlerstaenden-vom-lf) — LF *The steps are the **possible** messages of this process, not a sequence — the source lists neither conditions nor alternatives. The small box on the step names the own view on the left: with **←** it receives, with **→** it sends. Collapsed steps run between other market partners.* These read accesses are not listed in the API catalogue of this format version; the step therefore shows only their command, without address and without button. Applies to: [1](#schritt-1)