FB_DALIV2QueryDeviceType

FB_DALIV2QueryDeviceType 1:

The function block FB_DALIV2QueryDeviceType reads the DEVICE TYPE from the control gear. The following device types are defined according to the IEC 62386 standard:

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).

FB_DALIV2QueryDeviceType 2: Inputs

VAR_INPUT
  bStart           : BOOL;
  nAddr            : BYTE;
  eAddrType        : E_DALIV2AddrType := eDALIV2AddrTypeShort;
  eCommandPriority : E_DALIV2CommandPriority := eDALIV2CommandPriorityMiddle;
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

eCommandPriority

E_DALIV2CommandPriority

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

FB_DALIV2QueryDeviceType 3: 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).

FB_DALIV2QueryDeviceType 4: Outputs

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

nDeviceType

BYTE

Identifier for the device type (see table above)

Requirements

Development Environment

PLC library to include

TwinCAT from v3.1.4020.14

Tc2_DALI from v3.4.3.0