✕
✕

Id

Read TwinCAT TIA
Devices Multi-vendor devices Open Protocol devices OpenProtocolDevices One device

ns=2;s=DEPRAG Smart/Devices/General/OpenProtocol/OpenProtocolDevices/0/Id

Unique list index to retrieve the device in the list of OpenProtocolDevices.

Examples:

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

Beckhoff parameter:

    bOpenProtocolReadId
    A boolean variable that can be used to trigger the execution of the ReadId command.
    OutputOpenProtocolReadId
    A variable of type "DINT" into which the return value of the Id property is written.
    hrOpenProtocolReadId
    This can be used to monitor the execution of the command. Error codes have the type "HRESULT".
    fbOpenProtocol
    An instance of the "FB_OpenProtocol" function block supplied with the DEPRAG Smart library.
    sDeviceId
    A DINT value that identifies the device in the list of devices registered with the DEPRAG Smart OPC UA Server.
    ConnectionHandle
    "ConnectionHandle" received when establishing a connection between DEPRAG Smart Server and your OPC UA client. 


VAR
       bOpenProtocolReadId    : BOOL;
       OutputOpenProtocolReadId  : DINT;
       hrOpenProtocolReadId   : HRESULT;

       fbOpenProtocol   : FB_OpenProtocol;
END_VAR

hrOpenProtocolReadId := fbOpenProtocol.ReadId(
       bExecute    := bOpenProtocolReadId,
       ConnectionHandle  := depragSmartConnection.ConnectionHandle,
       sDeviceId   := '0',
       Output    => OutputOpenProtocolReadId);
IF hrOpenProtocolReadId <> S_FALSE THEN 
       bOpenProtocolReadId := 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".