FB_EcGetSlaveCrcError

FB_EcGetSlaveCrcError 1:

The function block FB_EcGetSlaveCrcError allows the CRC error counters of the individual ports (A, B and C) of a slave to be read. If the call is successful, the output variable crcError, whose type is ST_EcCrcError, contains the requested CRC error counter.  

The function block FB_EcGetSlaveCrcError can only be used with slaves with up to 3 ports (i.e. EK1100), the function block FB_EcGetSlaveCrcErrorEx can also be used with slaves with up to 4 ports (i.e. EK1122).

VAR_INPUT

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

sNetId: This is a string that contains the AMS network identifier of the EtherCAT master device.

nSlaveAddr:  Fixed address of the EtherCAT slave, whose CRC error counter should be read.

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;
    nErrId      : UDINT;
    crcError    : ST_EcCrcError;     
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.

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

crcErrorCRC error counter of all ports.

Example of an implementation in ST:

PROGRAM TEST_GetSlaveCrcError
VAR
    fbGetSlaveCrcError      : FB_EcGetSlaveCrcError;
    sNetId          : T_AmsNetId := '172.16.2.131.2.1';
    bExecute        : BOOL;
    crcError        : ST_EcCrcError;
    nSlaveAddr          : UINT := 1001;
    bError          : BOOL;
    nErrId          : UDINT;
END_VAR
fbGetSlaveCrcError(sNetId:= sNetId, nSlaveAddr:= nSlaveAddr, bExecute:=bExecute);
crcError:=fbGetSlaveCrcError.crcError;
bError:=fbGetSlaveCrcError.bError;
nErrId:=fbGetSlaveCrcError.nErrId;

Requirements

Development environment

Target system type

PLC libraries to be linked

TwinCAT v2.10.0 or higher

PC or CX (x86)

TcEtherCAT.lib
( Standard.Lib; TcBase.Lib; TcSystem.Lib, TcUtilities.Lib are included automatically )

TwinCAT v2.10.0 Build >= 1301 or higher

CX (ARM)