FB_DALI103VerifyShortAddress

The function block checks whether the variable shortAddress matches the value nShortAddress for all selected DALI control devices.

DALI control devices are selected if the DALI command INITIALISE (see FB_DALI103Initialise) was executed previously. The DALI commands SEARCHADDRH, SEARCHADDRM and SEARCHADDRL are called internally.

This function block is required if addressing of the DALI control devices is to be implemented in the PLC. The function block FB_DALI103Addressing can be used to assign the addresses from the PLC.

The output bAnswer only contains a valid value if the function block was executed without errors (bError = FALSE).

	The function block cannot be used when using the KL6811.

Inputs

VAR_INPUT
  bStart            : BOOL;
  eCommandPriority  : E_DALICommandPriority := E_DALICommandPriority.Middle;
  nShortAddress     : BYTE;
END_VAR

Name	Type	Description
bStart	BOOL	Execution of the DALI commands is triggered via a positive edge at this input.
eCommandPriority	E_DALICommandPriority	Priority (low, middle low, middle, middle high, high) with which the DALI commands are sent.

	The command priorities are supported by the KL6821 from the firmware version BD.

Name	Type	Description
nShortAddress	BYTE	Short address with which the own short address is compared

Outputs

VAR_OUTPUT
  bError                  : BOOL;
  ipResultMessage         : I_TcMessage;
  bBusy                   : BOOL;
  bAnswer                 : BOOL;
END_VAR

Name	Type	Description
bError	BOOL	This output is switched to TRUE if an error occurs during the execution. Further information about the error can be queried via the variable ipResultMessage. The output is set to FALSE again as soon as bBusy switches to TRUE.
ipResultMessage	I_TcMessage	Interface pointer (see error evaluation) that can be used to obtain detailed information about the processing of the function block (see runtime messages). The interface pointer is valid after bBusy has changed from TRUE to FALSE.
bBusy	BOOL	The output is set as soon as execution of the DALI commands has commenced. It remains active until all DALI commands have been processed.
bAnswer	BOOL	Is TRUE if nShortAddress is equal to its own short address.

Properties

Name	Type	Access	Initial value	Description
ipDALICommunication	I_DALICommunication	Get,Set	0	Interface Pointer to the communication block (see Transfer of the reference to the communication block).

Requirements

Development environment	required PLC library
TwinCAT from v3.1.4022.29	Tc3_DALI from v3.1.4.0