Echelon OpenLNS - Manual (Page 357)

OpenLNS Programmer's Reference 320
FileIndex
Summary Specifies the file index to be used during operations on the
FileTransfer object .
Note: OpenLNS does not support writing to the template file
or the value file (or value files) because it would corrupt the
configuration properties. Instead, OpenLNS provides the
ConfigProperties object to provide transparent access to
configuration properties implemented via configuration
network variables, file transfer, and direct memory
read/write. OpenLNS applications must use the
ConfigProperties objects in place of direct file transfer when
writing or reading configuration properties.
Availability Local, full, and lightweight clients.
Syntax indexValue = fileTransObject. FileIndex
Element Description
indexValue The file index to read or write.
The file index may have a value
between 0–65,535. The default value
is 2.
•
For a write, the value is the index
on the receivers.
• For a read, the value is the index
on the sender.
The file index property should be set
before any of the FileTransfer object
methods are invoked.
LonMark compliant devices may
implement standard configuration
property types (SCPTs) using the
LonMark file transfer protocol. In
this case, file indexes 0 and 1 are
reserved for the SCPT template and
value files. Index 2 may be used for
the constant value file.
fileTransObject The FileTransfer object to be acted on.
Data Type Integer.
Read/Write Read/write.
Added to API Prior to LNS Release 3.0.