FB_SoEReadDiagMessage

FB_SoEReadDiagMessage 1:

The functionblock FB_SoEReadDiagMessage can be used to read the diagnose message as a Sercos-String (S-0-0095).  

VAR_INPUT

VAR_INPUT
    sNetId   : T_AmsNetId := '';
    bExecute : BOOL;
    tTimeout : TIME := DEFAULT_ADS_TIMEOUT;
END_VAR

sNetId: A string containing the AMS network identifier of the PC.

bExecute: The block is activated by a rising edge at this input.

tTimeout: Maximum time allowed for the execution of the function block.

VAR_IN_OUT

VAR_IN_OUT
    Axis : NCTOPLC_AXLESTRUCT;(* reference to NC axis *)
END_VAR

Axis: Axis structure.

VAR_OUTPUT

VAR_OUTPUT
    bBusy         : BOOL;
    bError        : BOOL;
    iAdsErrId     : UINT;
    iSercosErrId  : UINT;
    sDiagMessage  : ST_SoE_String;
    dwAttribute   : DWORD;
END_VAR

bBusy: This output is set when the function block is activated, and remains set until an acknowledgement is received.

bError: This output is set up after the bBusy output has been reset if there has been an error in transmission of the command.

iAdsErrId: Supplies the ADS error code associated with the most recently executed command if the bError output is set.

iSercosErrId: Supplies the Sercos error code associated with the most recently executed command if the bError output is set.

dwAttribute: Supplies the Sercos parameter attribute.

sDiagMessage: Supplies the diagnostic message.

Sample

fbDiagMessage : FB_SoEReadDiagMessage;
bDiagMessage  : BOOL;
sDiagMessage  : ST_SoE_String;

(* NcAxis *)
stNcToPlc AT %I* : NCTOPLC_AXLESTRUCT;
IF bDiagMessage THEN
    fbDiagMessage(
        Axis     := stNcToPlc,
        bExecute := TRUE,
        tTimeout := DEFAULT_ADS_TIMEOUT,
        sDiagMessage=> sDiagMessage
    );
    IF NOT fbDiagMessage.bBusy THEN
        fbDiagMessage(Axis := stNcToPlc, bExecute := FALSE);
        bDiagMessage := FALSE;
    END_IF
END_IF