FB_DSIDirectArcPowerControl

FB_DSIDirectArcPowerControl 1:

The parameter nArcPowerLevel specifies the brightness to which the lamp is switched.

nArcPowerLevel

Comment

0

Lamp is switched off

1

Lamp is switched to the minimum brightness

255

Lamp is switched to the maximum brightness

Control gears with a DSI interface do not have a short address. All the control gears on a DSI line receive the same value.

FB_DSIDirectArcPowerControl 2:

The KL6811 must be switched to DSI mode. Details for this can be found in the operating instructions for the KL6811.

DSI control gears and DALI control gears cannot be mixed on a line. However, it is possible to operate several KL6811s on one controller, each in different operation modes (DSI/DALI).

FB_DSIDirectArcPowerControl 3: Inputs

VAR_INPUT
  bStart           : BOOL;
  eCommandPriority : E_DALIV2CommandPriority := eDALIV2CommandPriorityMiddle;
  nArcPowerLevel   : BYTE;
END_VAR

Name

Type

Description

bStart

BOOL

The function block is activated by a positive edge at this input.

eCommandPriority

E_DALIV2CommandPriority

Priority (high, medium or low) with which the command is processed by the library.

nArcPowerLevel

BYTE

Lamp power value (0 ... 255)

FB_DSIDirectArcPowerControl 4: 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.

FB_DSIDirectArcPowerControl 5: Outputs

VAR_OUTPUT
  bBusy    : BOOL;
  bError   : BOOL;
  nErrorId : UDINT;
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).

Requirements

Development Environment

PLC library to include

TwinCAT from v3.1.4020.14

Tc2_DALI from v3.4.3.0