FB_KL6821Config

The function block FB_KL6821Config is used to configure the KL6821. The configuration is executed when the PLC program starts, or it can be triggered by a positive edge at the input bConfigurate. The parameters are stored in the respective registers of the KL6821 in a fail-safe manner. In addition, some general information, such as the firmware version, is read from the KL6821.

Example

The function block is called in the same task as the function block FB_KL6821Communication.

The function block FB_KL6821Config is linked to the process image of the KL6821. Once the configuration is complete, the function block FB_KL6821Communication receives the process values of the KL6821. DALI commands cannot be sent during configuration.

Sample: DALI_Sample_KL6821Config.zip

Inputs

VAR_INPUT
  bConfigurate           : BOOL := FALSE;
  eCommandKBusWatchdog   : E_DALIV2ConfigurationCommands := eDALIV2CommandDoNothing;
  eCommandDI1RisingEdge  : E_DALIV2ConfigurationCommands := eDALIV2CommandOff;
  eCommandDI1FallingEdge : E_DALIV2ConfigurationCommands := eDALIV2CommandDoNothing;
  eCommandDI2RisingEdge  : E_DALIV2ConfigurationCommands := eDALIV2CommandRecallMaxLevel;
  eCommandDI2FallingEdge : E_DALIV2ConfigurationCommands := eDALIV2CommandDoNothing;
  ePowerSupplyMode       : E_DALIV2PowerSupplyMode := eDALIV2PowerSupplyModeOn;
  nOptions               : DWORD := 0;
END_VAR

Name	Type	Description
bConfigurate	BOOL	Configuration of the bus terminal is started by a positive edge at this input.
eCommandKBusWatchdog	E_DALIV2ConfigurationCommands	Defines the DALI command that is sent as soon as the bus terminal is no longer addressed via the K-bus.
eCommandDI1RisingEdge	E_DALIV2ConfigurationCommands	Defines the DALI command that is sent as soon as a rising edge is detected at input 1 of the bus terminal.
eCommandDI1FallingEdge	E_DALIV2ConfigurationCommands	Defines the DALI command that is sent as soon as a falling edge is detected at input 1 of the bus terminal.
eCommandDI2RisingEdge	E_DALIV2ConfigurationCommands	Defines the DALI command that is sent as soon as a rising edge is detected at input 2 of the bus terminal.
eCommandDI2FallingEdge	E_DALIV2ConfigurationCommands	Defines the DALI command that is sent as soon as a falling edge is detected at input 2 of the bus terminal.
ePowerSupplyMode	E_DALIV2PowerSupplyMode	Defines the operation mode of the internal DALI power supply.
nOptions	DWORD	Reserved for future developments.

Inputs/outputs

VAR_IN_OUT
  stInDataTerminal         : ST_KL6821InData;
  stOutDataTerminal        : ST_KL6821OutData;
  stInData                 : ST_KL6821InData;
  stOutData                : ST_KL6821OutData;
END_VAR

Name	Type	Description
stInDataTerminal	ST_KL6821InData	Reference to the structure for communication with the KL6821
stOutDataTerminal	ST_KL6821InData	Reference to the structure for communication with the KL6821
stInData	ST_KL6821InData	Reference to the internal structure for communication with the function block FB_KL6821Communication
stOutData	ST_KL6821InData	Reference to the internal structure for communication with the function block FB_KL6821Communication

Outputs

VAR_OUTPUT
  bBusy                      : BOOL;
  bError                     : BOOL;
  nErrorId                   : UDINT;
  nTerminalDescription       : WORD;
  nFirmwareVersion           : WORD;
  sDescription               : STRING;
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).
nTerminalDescription	WORD	Contains the terminal name (e.g. 6821). Corresponds to register 8 of the bus terminal.
nFirmwareVersion	WORD	Contains the firmware version. Corresponds to register 9 of the bus terminal.
sDescription	STRING	Terminal name and firmware version as string (e.g. "Terminal KL6821 / Firmware 2H").

Requirements

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