FB_DALIV2xSendDALICommand

FB_DALIV2xSendDALICommand 1:

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