FB_SoEReadMotorTemperature_ByDriveRef

FB_SoEReadMotorTemperature_ByDriveRef 1:

The functionblock FB_SoEReadMotorTemperature_ByDriveRef canbe used to read the temperatur of the motor (S-0-0383). If the motor does not contain a temperature sensor then the FB reports 0.0, means 0.0°C.  

VAR_INPUT

VAR_INPUT
    stDriveRef : ST_DriveRef; 
    bExecute   : BOOL; 
    tTimeout   : TIME := DEFAULT_ADS_TIMEOUT;
END_VAR

stDriveRef: The drive reference can be linked in the System Manager between PLC and drive. The link can be done to an instance of the ST_PlcDriveRef. The structure ST_PlcDriveRef contains the NetID as byte array. The byte array can be converted to a string. See ST_DriveRef.

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

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

VAR_OUTPUT

VAR_OUTPUT
    bBusy             : BOOL;
    bError            : BOOL;
    iAdsErrId         : UINT;
    iSercosErrId      : UINT;
    dwAttribute       : DWORD;
    fMotorTemperature : REAL;
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 attribut of the Sercos parameter.

fMotorTemperature: Supplies the motor temperature (i.e. 30.5 means 30.5°C). If the motor does not contain a temperature sensor thenthe value is 0.0, means 0.0°C.

Sample

fbReadMotorTemp : FB_SoEReadMotorTemperature_ByDriveRef;
bReadMotorTemp : BOOL;
fMotorTemperature : REAL;
stPlcDriveRef AT %I* : ST_PlcDriveRef;
stDriveRef           : ST_DriveRef;
IF bInit THEN
    stDriveRef.sNetId     := F_CreateAmsNetId(stPlcDriveRef.aNetId);
    stDriveRef.nSlaveAddr := stPlcDriveRef.nSlaveAddr;
    stDriveRef.nDriveNo   := stPlcDriveRef.nDriveNo;
    stDriveRef.nDriveType := stPlcDriveRef.nDriveType;

    IF (stDriveRef.sNetId <> '') AND (stDriveRef.nSlaveAddr <> 0) THEN
        bInit := FALSE;
    END_IF
END_IF

IF bReadMotorTemp AND NOT bInit THEN
    fbReadMotorTemp(
        stDriveRef := stDriveRef,
        bExecute := TRUE,
        tTimeout := DEFAULT_ADS_TIMEOUT,
        fMotorTemperature=>fMotorTemperature
    );

    IF NOT fbReadMotorTemp.bBusy THEN
        fbReadMotorTemp(stDriveRef := stDriveRef, bExecute := FALSE);
        bReadMotorTemp := FALSE;
    END_IF
END_IF