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Id

Read TwinCAT TIA
Network REST Client ActiveClients One client

ns=2;s=DEPRAG Smart/Network/HTTP/REST/ActiveClients/0/Id

Unique identification of the REST client.

Examples:

In addition to the parameters already explained, the following variables must be created / transferred for the implementation in TwinCAT 3:

Beckhoff parameter:

    bHttpReadId
    A boolean variable that can be used to trigger the execution of the ReadId command.
    OutputHttpReadId
    A DINT variable in which the Id for the calls to the REST API is stored.
    hrHttpReadId
    This can be used to monitor the execution of the command. Error codes have the type HRESULT.
    fbHttpRest
    An instance of the "FB_HttpRest" function block supplied with the DEPRAG Smart library.
    ClientId
    A String(255) variable that specifies the client that should execute the command.
    ConnectionHandle
    "ConnectionHandle" received when establishing a connection between DEPRAG Smart Server and your OPC UA client. 


VAR
     bHttpReadId   : BOOL;
     OutputHttpReadId : DINT;
     hrHttpReadId  : HRESULT;

     fbHttpRest   : FB_HttpRest;
END_VAR


hrHttpReadId := fbHttpRest.ReadId(
       bExecute    := bHttpReadId,
       ConnectionHandle  := depragSmartConnection.ConnectionHandle,
       ClientId   := '0',
       Output    => OutputHttpReadId);
IF hrHttpReadId <> S_FALSE THEN 
     bHttpReadId := FALSE;
END_IF

For examples and explanations regarding the calls of nodes via Siemens TIA Portal please refer to the sub-menu "Siemens TIA Portal" in section "Getting Started".