FB_DALIV2SetShortAddress
The function block FB_DALIV2SetShortAddress is used to assign a (new) short address to one or more control gears. Valid short addresses lie in the range between 0 and 63. If 255 is specified as the short address, the short address in the control gear is deleted.
If you want to give a short address to a device that does not yet have one, you must transmit the command as a broadcast (eAddrType = eDALIV2AddrTypeBroadcast). This gives all control gears connected to the DALI terminal the short address nNewShortAddress. This includes the control gears that previously did not have a short address.
Inputs
VAR_INPUT
bStart : BOOL;
nAddr : BYTE;
eAddrType : E_DALIV2AddrType := eDALIV2AddrTypeShort;
nNewShortAddress : BYTE;
END_VARName | Type | Description |
|---|---|---|
bStart | BOOL | The function block is activated by a positive edge at this input. |
nAddr | BYTE | The address of a device or of a group |
eAddrType | Short address, group address or broadcast | |
nNewShortAddress | BYTE | New short address (0-63) or mask (255) |
Inputs/outputs
VAR_IN_OUT
stCommandBuffer : ST_DALIV2CommandBuffer;
END_VARName | Type | Description |
|---|---|---|
stCommandBuffer | ST_DALIV2CommandBuffer | Reference to the internal structure for communication with FB_KL6811Communication (KL6811) or FB_KL6821Communication (KL6821). |
Outputs
VAR_OUTPUT
bBusy : BOOL;
bError : BOOL;
nErrorId : UDINT;
END_VARName | Type | Description |
|---|---|---|
bBusy | BOOL | When the function block is activated the output is set, and it remains active until execution of the command has been completed. |
bError | BOOL | 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 nErrorId. Is reset to FALSE by the execution of a command at the inputs. |
nErrorId | UDINT | Contains the command-specific error code of the most recently executed command. Is reset to 0 by the execution of a command at the inputs (see error codes). |
Requirements
Development Environment | PLC library to include |
|---|---|
TwinCAT from v3.1.4020.14 | Tc2_DALI from v3.4.3.0 |