FB_DALI102SetSearchAddress
The function block stores the value nSearchAddress in the searchAddress variable for all selected DALI control gears.
DALI control gears are selected if the DALI command INITIALIZE (see FB_DALI102Initialise) was executed previously.
The DALI commands SEARCHADDRH, SEARCHADDRM and SEARCHADDRL are called internally.
This function block is required if addressing of the DALI control gears is to be implemented in the PLC. The function block FB_DALI102Addressing can be used to assign the addresses from the PLC.
Inputs
VAR_INPUT
bStart : BOOL;
eCommandPriority : E_DALICommandPriority := E_DALICommandPriority.MiddleLow;
nSearchAddress : UDINT;
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 (see E_DALICommandPriority). |
 | eCommandPriority has no function with the KL6811. The DALI command priorities are supported by the KL6821 from the firmware version BD. |
Name | Type | Description |
|---|---|---|
nSearchAddress | UDINT | The value to be written to the searchAddress variable (16#00_00_00…16#FF_FF_FF). |
Outputs
VAR_OUTPUT
bError : BOOL;
ipResultMessage : I_TcMessage;
bBusy : 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. |
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 |