FB_DALIV2xSendDALICommand

The function block FB_DALIV2xSendDALICommand is used 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.

In contrast to the function block FB_DALIV2SendDALICommand, this function block is also able to control DALI control devices (sensors).

Inputs

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;
END_VAR

Name	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	E_DALIV2AddrType	Short address, group address or broadcast
nInstAddr	BYTE	Address of the instance within the device
eInstAddrType	E_DALIV2InstAddrType	Defines the meaning of the variable nInstAddr for addressing the instance (e.g. by instance number, instance type,...).
eCommandPriority	E_DALIV2CommandPriority	Priority (high, medium or low) with which the command is processed by the library.
nCommand	INT	Number of the DALI command to be sent
nCommand01	BYTE	Parameter for the value transfer
nCommand02	DINT	Parameter for the value transfer
bWaitingForDALISlaveResponse	BOOL	If FALSE, the system does not wait for the response from the DALI device. Its application makes no sense in connection with any kind of query command.
bRepeatCommand	BOOL	Decides whether the command is to be sent twice in succession.
bSuppressResponseBuffer	BOOL	If TRUE, the internal buffer is not filled with the response from the function block FB_KL6811Communication (KL6811) or FB_KL6821Communication (KL6821).
nDeviceType	BYTE	Identifier for the device type (see table below)
nOptions	DWORD	Reserved for future developments.
eDataFrameType	E_DALIV2DataFrameType	Output format of the DALI command (eDALIV2DataFrameType24Bit, eDALIV2DataFrameType16Bit or eDALIV2DataFrameTypeOsram)

Identifiers 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

Inputs/outputs

VAR_IN_OUT
  stCommandBuffer : ST_DALIV2CommandBuffer;
END_VAR

Name	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;
  arrResponseData : ARRAY [0..3] OF BYTE;
END_VAR

Name	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).
arrResponseData	ARRAY OF BYTE	The value received from the DALI device if a query command was invoked.

Requirements

Development Environment	PLC library to include
TwinCAT from v3.1.4022.4	Tc2_DALI from v3.6.2.0