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Info
titleFile location

<WorkspaceDirectory>\DataFiles\nxaTelegramDefinitions.

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40.dat

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Within this configuration files, the KNX datapoints data points, i.e. the KNX group addresses are specified. The structure of the definition file is as follows:
'Syntax of the Telegram Definition Table:'log.KNX Address; IP Address; Priority; Data Size; EIS Type; Signed/Unsigned; Unit; Description; Path; Control Data; Alias; Read on Reconnect; Read Cyclically Interval;
' Persistent;Historical;Synchronize;IN Converter;OUT Converter
1/0;BROADCAST;LOW;1BIT;EIS1;;;Telegram Demo EIS1;;;;F;0;F;F;F;;
2/0;BROADCAST;LOW;4BIT;EIS2;;;Telegram Demo EIS2;;;;F;0;F;F;F;;
3/0;BROADCAST;LOW;3BYTE;EIS3;;;Telegram Demo EIS4;;;;F;0;F;F;F;;
4/0;BROADCAST;LOW;3BYTE;EIS4;;;Telegram Demo EIS4;;;;F;0;F;F;F;;
5/1;BROADCAST;LOW;2BYTE;EIS5;;°C;Telegram Demo EIS5 1;;;;F;0;F;F;F;;
5/21;BROADCAST;LOW;2BYTE;EIS5;;mA;Telegram Demo EIS5 2;;;;F;0;F;F;F;;Each line – except comment lines that start with ' – defines a single KNX group address.

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, are specified. 

Info

This definition file can also be generated using the ETS app import wizard (Studio > KNX → Inport > Import NETx ETS App file...) which generates the KNX group address definitions from an exported ETS project.

The structure of the definition file is as follows:

Col#ParameterDescription
1
log.KNX Address
KNX grp. adr.It defines the
logical
KNX group address of the
datapoint
data point. The KNX group address can be specified either in three level form (e.g. 0/2/1) or in tow level form (e.g. 0/513).
2
IP Address
KNX gateway name

It specifies the

IP address

name of the KNXnet/IP device to which the specified KNX group address is assigned. Thus, it defines KNXnet/IP device that is used to send and receive KNX telegrams that are originated to this group address. The name "BROADCAST" defines a KNX

datapoint

data point which is sent to all defined gateways.

Info
! The

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KNX group address together with the

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name of the KNXnet/IP device define the effective address of the KNX

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data point. This effective address is internally used by the server. Using this addressing scheme, it is possible to use the same KNX group address for multiple KNX

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data points as long as they are assigned to different KNXnet/IP devices. This means that behind each gateway an independent ETS address space can exist.

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3PriorityIt defines the KNX priority that is used to send KNX group telegrams. Possible values are SYSTEM, HIGH, ALARM and LOW. The standard value "LOW" should be used in general.

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Info

Columns 4 to 7 define how to interpret the received data of a KNX

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data point. At least two of these attributes has to defined to specify the semantic of a

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data point. All possible combinations are listed in the data type table.


4Data SizeIt defines the size of the
datapoint
data point. Possible values are: 1BIT, 2BIT, 4BIT, 1BYTE, 2BYTE, 3BYTE, 4BYTE, 5BYTE, 6BYTE, 7BYTE, 8BYTE, 10BYTE, 14BYTE.
5
EIS
Data TypeUsing this column, the data types is specify by defining the
EIB Interworking Standard (EIS) typeThis
standardized KNX data point type (KNX DPT). As an alternative, the old EIS types can be selected too.
6
Signed/Unsigned
SigningOnly for EIS types: this attribute specifies whether the data type is a signed or unsigned one.
7Unit
It
Only for EIS types: it defines engineering units of the KNX
datapoint. It has to be selected from the list.
data point. 
8DescriptionThis attribute can be used to specify a human-readable text that further describes the
datapoint.9(deprecated) PathThis attribute is used for the automatic PDA visualization to create a tree structure like "Home/Level1/living room".10(deprecated) Control DataThis attribute is used for additional input data for the automatic PDA visualization.11(deprecated) AliasThis attribute can be used to define an alias name for this KNX datapoint. This alias is shown within the server item tree under the sub tree "Alias".12
data point.
9Read on ReconnectThis attribute is used to define whether a KNX Read telegram shall be sent when the corresponding KNXnet/IP gateway reconnects or when the server is started. If this functionality is activated, the read flag has to be set within the corresponding KNX device using ETS.
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10Read Cyclically IntervalThis attributed is used to define whether cyclic KNX Read telegrams be sent to retrieve the current value of the
datapoint
data point. If this functionality is activated, the read flag has to be set within the corresponding KNX device using ETS. Note that cyclically reading KNX
datapoints
data points consumes bandwidth within the KNX lines. The allowed maximum Value is 65535 s with is identical to 18,20 h.
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11PersistentThis parameter specifies whether the value of the
datapoint 16
data point is persistent (restored from the database after server start up ) or not.
15HistoricalThis parameter specifies whether historical values of the datapoint are stored within the database or not.
12SynchronizeIf this parameter is set to "True (T)", the value is synchronized between the main and backup server (if present). This will work only if
synchronize is enabled in the NMESH configuration of the
main/backup configuration is activated for the NETx BMS Core Server.
17IN ConverterAt this parameter you are able to define a LUA function, which can be used for INcoming conversion. E.g. InConv()18OUT ConverterAt this parameter you are able to define a LUA function, which can be used for OUTgoing conversion. E.g. OutConv()