Echelon Neuron - Manual (Page 111)

Neuron Tools Errors Guide 103
NCC# Description
456 The directive ‘#pragma num_alias_table_entries’ is required [NCC#456]
A Neuron C program must specify to the Neuron C Version 2 compiler how
much room is to be reserved for the alias table. The compiler does not
attempt to compute a default, so the programmer
must specify a value for
this pragma. Previous versions of the Neuron C Compiler defaulted this
value to zero, but that is really not an appropriate default value.
The value 0 (zero), however, can still be used to effectively disable the use
of the alias feature; please see the Neuron C Reference Guide for more
about compiler directives.
457 The type used in the declaration is unnamed or unsupported [NCC#457]
Some types are not supported when compiling a program that is used as a
model file for host development with ShortStack, FTXL, or the i .LON
SmartServer. Consult the product documentation for more information.
458 The fblock’s property is a duplicate [NCC#458]
The L
ON
M
ARK
Application Layer Interoperability Guidelines specify that
no more than one property of any particular SCPT or UCPT type may be
used for a functional block. Consult that document for more information.
459 Node object must be first fblock for LNS versions before 3.2 [NCC#459]
For LNS versions prior to version 3.2, if the device has a device object, that
device object must be the first functional block declared in the device (and
therefore be the functional block with global index zero).
You should implement the device object as the first functional block in the
device.
460 Cannot use an inheriting type to declare this object [NCC#460]
Some CPTs require inheritance of type information from a network
variable. Type inheritance is a feature that only applies to configuration
properties. Use of such a CPT for any other purpose (for example, declaring
a local or static variable in the program, or declaring a function parameter
or pointer) results in a declaration with incomplete type information(since
only a configuration property can inherit a type from a network variable).
A declaration with an incomplete type is not valid.
The CPT used in the declaration can only be used as part of a configuration
property declaration.
461 Cannot use an inheriting type CP as a device property [NCC#461]
A configuration property declared using a CPT type that inherits from a
network variable could not be a device property, because in that situation
there is no network variable from which to inherit.