FB_EcGetConfSlaves

FB_EcGetConfSlaves 1:

The function block FB_EcGetConfSlaves can be used to read a list of configured slaves from the EtherCAT master object directory.

Inputs

VAR_INPUT
    sNetId              : T_AmsNetId; 
    pArrEcConfSlaveInfo : POINTER TO ARRAY[0..EC_MAX_SLAVES] OF ST_EcSlaveConfigData;
    cbBufLen            : UDINT; 
    bExecute            : BOOL;
    tTimeout            : TIME := DEFAULT_ADS_TIMEOUT; 
END_VAR

Name	Type	Description
sNetId	T_AmsNetId	String containing the AMS network ID of the EtherCAT master device. (Type: T_AmsNetId)
pArrEcConf SlaveInfo	POINTER TO ARRAY [0..EC_MAX_SLAVES] OF ST_EcSlaveConfigData	Address of an array of structures of type ST_EcSlaveConfigData, into which data of each configured slave are to be written.
cbBufLen	UDINT	Maximum available buffer size (in bytes) for the data to be read
bExecute	BOOL	The function block is activated by a positive edge at this input.
tTimeout	TIME	Maximum time allowed for the execution of the function block.

Outputs

VAR_OUTPUT
    bBusy   : BOOL;
    bError  : BOOL;
    nErrId  : UDINT;
    nSlaves : UINT;
END_VAR

Name	Type	Description
bBusy	BOOL	This output is set when the function block is activated, and remains set until a feedback is received.
bError	BOOL	This output is set after the bBusy output has been reset when an error occurs in the transmission of the command.
nErrId	UDINT	Supplies the ADS error code associated with the most recently executed command if the bError output is set. Error 1798 (0x706) indicates a null pointer at the buffer address. Error 1797 (0x705) indicates inadequate buffer size.
nSlaves	UINT	Returns the number of configured slaves.

Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT v3.1.0	PC or CX (x86, x64, ARM)	Tc2_EtherCAT