RecvStartTransaction

RecvStartTransaction 1:

With this method, an OCPP server receives a Start Transaction request from an OCPP client. To respond to the request, the method RespStartTransaction must be called.

RecvStartTransaction 2:

Syntax

METHOD RecvStartTransaction : BOOL
VAR_INPUT
    hStationId     : UDINT;
END_VAR
VAR_OUTPUT
    hMessageId     : T_OCPP_MessageId;
    sIdTag         : T_OCPP1_IdToken;
    nConnectorId   : UDINT;
    nMeterStart    : UDINT;
    nReservationId : UDINT;
    nTimestamp     : ULINT;
END_VAR

Return value

Name	Type	Description
RecvStartTransaction	BOOL	The method returns the return value TRUE if the call was successful. A method call is also considered successfully completed in the event of an error.

Inputs

Name	Type	Description
hStationId	UDINT	Identifier of the OCPP client in the instance of the OCPP server.

Outputs

Name	Type	Description
hMessageId	T_OCPP_MessageId	MessageId of the received message.
sIdTag	T_OCPP1_IdToken	ID token with which the transaction is to be started.
nConnectorId	UDINT	ID of the Connector of a Charge Point.
nMeterStart	UDINT	Value in watt-hours at the start of the transaction.
nReservationId	UDINT	Optional reservation ID.
nTimestamp	ULINT	Date and time at the start of the transaction.

Possible errors are output at the outputs bError and hrErrorCode of the function block instance.