FieldServer LonWorks FS-8700-21 - Manual (Page 16)

FS-8700-21 LonWorks Manual Page 16 of 72
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7.1.4 Domain Table Setup
To be able to communicate with other Nodes on the LonWorks network, the FieldServer must have its Domain, Subnet and
Node ID’s set. Explicit configuration requires the user to set these parameters.
There are 3 ways in which the FieldServer DSN (Domain, Subnet, Node address) can be set:
Set the DSN using a Network manager by commissioning the FieldServer into the Network Manager Project. When doing
it this way, it is extremely important that the DSN is not forced in the FieldServer Configuration, as the Configuration
address will override the Network Manager Address every time the FieldServer is restarted.
Set the DSN from the Lon.ini file. Using this option provides a default DSN if the FieldServer does not have a DSN
assigned. If a Network Manager or the FieldServer Configuration provides a DSN, then the Lon.ini DSN will be ignored.
Set the DSN in the FieldServer configuration. This option takes precedence over the 2 other addressing options, and
should therefore not be used when commissioning a FieldServer into a Network with a Network Manager.
Example 1 - Setting the Domain and Subnet from the lon.ini file
The Domain Table and Subnet IDs can be set from a lon.ini file on the FieldServer. The FieldServer’s LonWorks Node ID will
be set from the System_Station_Address field in the configuration file if specified; otherwise a default value will be used.
lon.ini file contents:
:D50:S01:
Example 2: Setting the Node, Domain and Subnet in the configuration file
FieldServer
System_Station_Address , Title
[Node_Id]
, :D[Domain_ID]:S[Subnet_ID]:[Title continued…+
The Title field must start with “:D”, followed by the Domain_ID in hexadecimal notation, followed by “:S”, followed by the
Subnet_ID in hexadecimal notation. The domain length is automatically determined by the number of digits in the
[Domain_ID] field. Since 2 hexadecimal digits constitute 1 byte, “:D123456:” for example would have a length of 3.
Specifying the Domain and Subnet in the configuration file will override the settings from the lon.ini file.