KNX_Read_Data

KNX_Read_Data (FB)

FUNCTION_BLOCK KNX_Read_Data EXTENDS SlaveBasic

Overview

The KNX_Read_Data function block is used to receive KNX data without specific DPT conversion. It is particularly useful for progressive controls, such as in lighting control.

Inputs

Inputs	Initial value	Description
byAdrGroup	0	Group address (0-255)
byAdrMiddleGroup	0	Middle group address (0-7)
byAdrMainGroup	0	Main group address (0-31)

Outputs

• abyData (ARRAY[0..38] OF BYTE): Received raw data

Usage

1. Configure group address:

   • Set byAdrMainGroup (0-31)

   • Set byAdrMiddleGroup (0-7)

   • Set byAdrGroup (0-255)

2. Data reception:

   • The block automatically receives data when it is sent to the configured group address.

   • The received data is stored in the abyData array.

3. Data processing:

   • The received data in the abyData array can be further processed as needed.

   • Since no DPT conversion takes place, you must interpret the data yourself.

InOut:

Scope	Name	Type	Initial	Comment	Inherited from
Input	itfKnxConnector	IKnxConnector		IMasterConnector interface input to register/unregister the FB to the list on the Master	SlaveBasic
Input	xEnable	BOOL	TRUE		SlaveBasic
Output	sPhysicallAddressDevice	STRING(15)			SlaveBasic
Output	sGroupAddress	STRING(15)			SlaveBasic
Input Const	byAdrGroup	BYTE	0	Group address
Input Const	byAdrMiddleGroup	BYTE	0	Middle group address
Input Const	byAdrMainGroup	BYTE	0	Main group address
Output	abyData	ARRAY [0..38] OF BYTE