FB_SMISendSMICommand

VAR_INPUT

bStart                  : BOOL;
dwAddr                  : DWORD := 0;
eAddrType               : E_SMIAddrType := eSMIAddrTypeAddress;
dwAddrOption            : DWORD := 0;
eCommandPriority        : E_SMICommandPriority := eSMICommandPriorityMiddle;
eCommandType            : E_SMICommandType := eSMICommandTypeWrite;
eResponseFormat         : E_SMIResponseFormat := eSMIResponseFormatDiagnosis;
arrIdentificationBytes  : ARRAY [0..2] OF BYTE;
arrParameters           : ARRAY [0..2] OF DWORD;
bSuppressResponseBuffer : BOOL := FALSE;
dwOptions               : DWORD := 0; 

bStart: The function block is activated by a positive edge at this input.

dwAddr: manufacturer code (0-15), address of a device (0-15), bit field (16 bits) for the group addressing or slave ID (32-bit key ID). This input has no meaning if a collective call (broadcast) is sent.

eAddrType: defines whether the dwAddr input is to be evaluated as a manufacturer code, the address of a device (see E_SMIAddrType), for group addressing or as a slave ID.

dwAddrOption: if the SMI device is addressed by slave ID (eAddrType = eSMIAddrTypeSlaveId), then the manufacturer code must be specified via this input.

eCommandPriority: priority (high, medium or low) with which the command is processed by the PLC library (see E_SMICommandPriority).

eCommandType: Command type: Write/Read (see E_SMICommandType). This parameter affects bit 5 of the start byte of the SMI telegram.

eResponseFormat: ResponseFormat: Special diagnostic formats/standard (see E_SMIResponseFormat). This parameter affects bit 6 of the start byte of the SMI telegram.

arrIdentificationBytes: an SMI telegram can consist of up to 3 blocks. Each block possesses an identifier byte. Each block possesses an identifier byte.

arrParameters: an SMI telegram can consist of up to 3 blocks. Each block possesses up to four value bytes. The value bytes of the individual blocks are defined by this array.

bSuppressResponseBuffer: if this input is set to TRUE the internal software buffer is not filled with the responses from the FB_KL6831KL6841Communication() block.

dwOptions: reserved for future expansions.

VAR_OUTPUT

bBusy                        : BOOL;
bError                       : BOOL;
udiErrorId                   : UDINT;
arrResponseData              : ARRAY [0..7] OF BYTE;
byResponseDataLength         : BYTE;
byResponseIdentificationByte : BYTE;

bBusy: When the function block is activated the output is set, and it remains active until execution of the command has been completed.

bError: This output is switched to TRUE as soon as an error occurs during the execution of a command. The command-specific error code is contained in udiErrorId. The output is set back to FALSE by the reactivation of the function block via the bStart input.

udiErrorId: Contains the command-specific error code of the most recently executed command. It is set back to 0 by the reactivation of the function block via the bStart input (see error codes).

arrResponseData: the data received from the SMI devices.

byResponseDataLength: the length of the data received in bytes.

byResponseIdentificationByte: the identifier byte received.

VAR_IN_OUT

stCommandBuffer : ST_SMICommandBuffer; 

stCommandBuffer: reference to the structure for communication (buffer) with the FB_KL6831KL6841Communication() function block (see ST_SMICommandBuffer).

Prerequisites