FB_EcCoeSdoReadEx

VAR_INPUT

VAR_INPUT
    sNetId          : T_AmsNetId; (* AmsNetId of the EtherCAT master device.*)
    nSlaveAddr      : UINT; (* Address of the slave device.*)
    nSubIndex       : BYTE; (* CANopen Sdo subindex.*)
    nIndex          : WORD; (* CANopen Sdo index.*)
    pDstBuf         : DWORD; (* Contains the address of the buffer for the received data. *)
    cbBufLen        : UDINT; (* Contains the max. number of bytes to be received. *)
    bExecute        : BOOL; (* Function block execution is triggered by a rising edge at this input.*)
    tTimeout        : TIME := DEFAULT_ADS_TIMEOUT;(* States the time before the function is cancelled. *)
    bCompleteAccess : BOOL; (* access complete object*)
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 to which the SDO upload command should be sent.

nSubIndex:Sub-index of the object that is to be read.

nIndex: Index of the object that is to be read.

pDstBuf:The address (pointer) of the receive buffer.

cbBufLen:The maximum available buffer size for the data to be read, in bytes.

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

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

bCompleteAccess: With bCompleteAccess := TRUE the complete parameter with all sub indexes is being read.

VAR_OUTPUT

VAR_OUTPUT
    bBusy       : BOOL;
    bError      : BOOL;
    nErrId      : UDINT;
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.

Requirements