FB_DALIV2xSendDALICommand
This function block is for the general sending of a DALI command, defined by command number and, if necessary, transfer parameter. Moreover, it is possible to set whether the command is sent twice in succession and whether to wait for a response. The latter can be used, for example, to realize a fast sequence of step-up commands.
Compared to the function block FB_DALIV2SendDALICommand(), this function block is also able to control DALI control units (sensors).
VAR_INPUT
bStart : BOOL;
nAddr : BYTE;
eAddrType : E_DALIV2AddrType := eDALIV2AddrTypeShort;
nInstAddr : BYTE := 0;
eInstAddrType : E_DALIV2InstAddrType := eDALIV2InstAddrTypeNumber;
eCommandPriority : E_DALIV2CommandPriority := eDALIV2CommandPriorityMiddle;
nCommand : INT := 0;
nParameter01 : BYTE := 0;
nParameter02 : DINT := 0;
bWaitingForDALISlaveResponse : BOOL := FALSE;
bRepeatCommand : BOOL := FALSE;
bSuppressResponseBuffer : BOOL := FALSE;
nDeviceType : BYTE := 0;
nOptions : DWORD := 0;
eDataFrameType : E_DALIV2DataFrameType := eDALIV2DataFrameType16Bit;
bStart: The function block is activated by a positive edge at this input.
nAddr: The address of a participating device or of a group.
eAddrType: Short address, group address or broadcast.
nInstAddr: Address of the instance within the device.
eInstAddrType: Defines the meaning of the variable nInstAddr for addressing the instance (e. g. by instance number, instance type,...)
eCommandPriority: Priority (high, medium or low) with which the command is processed by the library.
nCommand: Number of the DALI command to be sent.
nParameter01: Parameter for the value transfer.
nParameter02: Parameter for the value transfer.
bWaitingForDALISlaveResponse: If FALSE, the system does not wait for the answer from the DALI device. Its application makes no sense in connection with any kind of query command.
bRepeatCommand: Decides whether the command is to be sent twice in succession.
bSuppressResponseBuffer: If TRUE, the internal buffer is not filled with the response from the function block FB_DALIV2Communication() (KL6811) or FB_KL6821Communication() (KL6821).
nDeviceType: Identifier for the device type.
Value | Description |
---|---|
0 | Standard device |
1 | Device for emergency lighting. |
2 | Device for discharge lamps. |
3 | Device for low-voltage halogen lamps. |
4 | Device for dimming incandescent lamps. |
5 | Device for converting digital signals into DC signals. |
6 | Device for light emitting diodes (LEDs). |
7 | Device for switching functions. |
8 | Device for controlling the color/color temperature. |
9 | Sequencer. |
nOptions: reserved for future expansions.
eDataFrameType: Output format of the DALI command (eDALIV2DataFrameType24Bit, eDALIV2DataFrameType16Bit or eDALIV2DataFrameTypeOsram).
VAR_OUTPUT
bBusy : BOOL;
bError : BOOL;
nErrorId : UDINT;
arrResponseData : ARRAY [0..3] OF 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 nErrorId. Is reset to FALSE by the execution of a command at the inputs.
nErrorId: 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.
arrResponseData: The value received from the DALI device if a query command was invoked.
VAR_IN_OUT
stCommandBuffer : ST_DALIV2CommandBuffer;
stCommandBuffer: Reference to the internal structure for communication with the function blocks FB_DALIV2Communication() (KL6811) or FB_KL6821Communication() (KL6821).
Requirements
Development environment | Target system | Required libraries |
---|---|---|
TwinCAT 2.11 R3/x64 from build 2260 | PC/CX, BX or BC | TcDALIV2 library from V2.12.0 |