Echelon LonTal Stack - Manual (Page 185)

LonTalk Stack Developer’s Guide 173
of relying upon the value in the device interface file or a value stored in a
network database. This specification is used for configuration properties that
must be managed by the device, such as a setpoint that is updated by a local
operator interface on the device. This option requires the CP family or
configuration property network variable to be declared as const.
manufacturing_only
Specifies a factory setting that can be read or written when the device is
manufactured, but is not normally (or ever) modified in the field. In this way,
a standard network management tool can be used when a device is
manufactured to calibrate the device, whereas a field installation tool would
observe the flag in the field and prevent updates or require a password to
modify the value.
object_disabled
Specifies that a network management tool must disable the functional block
containing the configuration property, take the device offline, or ensure that
the functional block is already disabled or the device is already offline, before
modifying the configuration property.
After the network management tool modifies the configuration property, the
application might have to take some action based on the modified value. The
application should check the configuration property value in the
LonResetOccurred() and LonOnline() callback handler functions.
offline
Specifies that a network management tool must take this device offline before
modifying the configuration property.
After the network management tool modifies the configuration property, the
application might have to take some action based on the modified value. The
application should check the configuration property value in the
LonResetOccurred() and LonOnline() callback handler functions.
reset_required
Specifies that a network management tool must reset the device after
changing the value of the configuration property.
After the network management tool modifies the configuration property, the
application might have to take some action based on the modified value. The
application should check the configuration property value in the
LonResetOccurred() callback handler function.
range_mod_string
Defines an optional range modification string following the property
identifier.
The range-mod modifier allows you to specify a range-modification string that
modifies the valid range for the configuration property defined by the
resource file. The range-modification string can only be used with fixed-point
and floating-point types, and consists of a pair of either fixed-point or
floating-point numbers delimited by a colon. The first number is the lower
limit while the second number is the high limit. If either the high limit or the
low limit is the maximum or minimum specified in the configuration property
type definition, then the field is empty to specify this.
In the case of a structure or an array, if one member of the structure or array