KNX_Read_DPT_13x

KNX_Read_DPT_13x (FB)

FUNCTION_BLOCK KNX_Read_DPT_13x EXTENDS SlaveBasic

Overview

Read function for DPT 13.x (4-byte signed value).

Inputs

Inputs	Initial value	Description
xRequest	FALSE	Trigger for one-time read
xRequestVisu	FALSE	Trigger for one-time read (visualization)
tRequestTime	T#0S	Interval for cyclical reading
eDPT_Format	-	DPT 13.x format selection
byAdrGroup	0	Group address (0-255)
byAdrMiddleGroup	0	Middle group address (0-7)
byAdrMainGroup	0	Main group address (0-31)
diInitValue	0	Initial value at InitOption.InitValue
eInitOption	-	Initialization option

Outputs

• diValue (DINT): Received integer value

• rValue (REAL): Received floating point value

• rFactor (REAL): Scaling factor

• sUnit (STRING[10]): Unit of the value

• tNextRequest (TIME): Time until the next read operation

Usage

1. Select the DPT 13.x format with eDPT_Format.

2. Configure the read options:

   • For cyclical reading: tRequestTime > T#0S

   • For event-based reading: use xRequest or xRequestVisu

3. Set eInitOption and if applicable, diInitValue for initialization.

4. Monitor diValue or rValue for received values and sUnit for the unit.

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	xRequest	BOOL		Read once
Input Const	xRequestVisu	BOOL		Read once
Input Const	tRequestTime	TIME	TIME#0ms	Monitoring time
Input Const	eDPT_Format	DPT_13x		Enum DPT_13x
Input Const	byAdrGroup	BYTE	0	Groupaddress
Input Const	byAdrMiddleGroup	BYTE	0	Middle-Group-Address
Input Const	byAdrMainGroup	BYTE	0	Main-Group-Adress
Input Const	diInitValue	DINT
Input Const	eInitOption	InitOption
Output	diValue	DINT
Output	rValue	REAL
Output	rFactor	REAL
Output	sUnit	STRING(5)
Output	tNextRequest	TIME