Request

Request 1:

Calling this method triggers the asynchronous request.

Syntax

METHOD Request : HRESULT
VAR_INPUT
    eventClass : GUID;
    nEventId   : UDINT;
    nLangId    : DINT; // English(US)=1033 ; German(Germay)=1031
END_VAR

Request 2: Inputs

Name

Type

Description

eventClass

GUID

Specifies the event class.

nEventId

UDINT

ID of the event

nLangId

DINT

Specifies the language ID:

English (en-US) = 1033

German (de-DE) = 1031

The TcLcid enum can be used.

Request 3: Outputs

Name

Type

Description

Request

HRESULT

Returns possible error information.

S_OK if the query is successful.

ADS_E_INVALIDSTATE if the target system is in an invalid state.

ADS_E_NOMEMORY if no memory is available to store the result.

ADS_E_PENDING if the query is still pending.