IOF_SER_IDN_Write

VAR_INPUT

VAR_INPUT
    sNetId    : T_AmsNetId;
    nIDN      : UINT; (* S: 0******* ********, P: 1******* ******** *)
    bExecute  : BOOL;
    nPort     : UINT;
    nAttrib   : DWORD;
    cbLen     : UDINT;
    dwSrcAddr : PVOID;
    tTimeout  : TIME := DEFAULT_ADS_TIMEOUT;
END_VAR

sNetId: The network address of the TwinCAT computer on which the ADS command is to be executed can be entered here (type: T_AmsNetId). If it is to be run on the local computer, an empty string can be entered.

nIDN: contains the Sercos parameter number to be accessed for writing. nIDN must lie between 0 and 32767 for S-parameters and between 32768 and 65535 for P-parameters.

bExecute: the block is activated by a positive edge at this input.

nPort: The port number nPort is assigned by the TwinCAT system during the hardware configuration.

nAttrib: Attribute of the parameter, if known. If nAttrib = 0, IOF_SER_IDN_Write first reads the parameter attribute of the drive before the value is written to the parameter of the drive.

cbLen: Length of the data buffer containing the value.

dwSrcAddr: Address of the data buffer containing the value.

tTimeout: States the length of the timeout that may not be exceeded during execution of the command.

VAR_OUTPUT

VAR_OUTPUT
    nAttribRd : DWORD;
    sAttrib   : ST_SercosParamAttrib;
    bBusy     : BOOL;
    bError    : BOOL;
    nErrId    : UDINT;
END_VAR

nAttribRd: Attribute of the parameter; can be saved for the next access (nAttrib) to the parameter.

sAttrib: contains the attribute nAttribRd of the Sercos parameter, broken down into individual variables (type: ST_SercosParamAttrib).

bBusy: When the function block is activated this output is set. It remains set until a feedback is received.

bError: If an error should occur during the transfer of the command, then this output is set once the bBusy output was reset.

nErrId: Supplies the ADS error number when the ERR output is set.

Requirements