Hi
A core of plcs modellers met this week.
We raised and addressed this issue.
If anyone does not like the resolution please say so.
Issue: RBN-1 by Rob Bodington (05-09-02) minor_technical issue
Resolution: Accept. Status: open
/IGNORE
is used inconsistently throughout the capabilities.
According
to AP239 annex and dexlib/help/dex/implementor_trans.xml, the following should
be used.
In
particular optional values should default to '$' and only be set to '/IGNORE'
if there is a value assigned.
|
Value
|
Description
|
|
''
|
indicates user data managed by the sending system
but not provided for data exchange.
|
|
'/NULL'
|
indicates user data in a mandatory attribute that is
not managed by the sending system or currently not known.
|
|
'$'
|
$ is used in the physical file, if an optional
attribute is not instantiated.
|
|
'/IGNORE'
|
Attribute values are set to '/IGNORE' when the
information that could be held by the attribute is instead assigned to the
instance of the entity.
|
Table — Attribute values
Comment: (Rob
Bodington 05-09-21)
The proposal is that wherever an attribute should not be used, i.e. it should
have been removed from the model as assignment is used instead, it should be
populated with /IGNORE, regardless of whether the attribute is used or not. This
means that any translator does not have to parse the attributes to determine
whether there is an assignment holding the value or not. This should be
consistent through out.
Regards
Rob
-------------------------------------------
Rob Bodington
Eurostep Limited
Web Page: http://www.eurostep.com http://www.share-a-space.com
Email:
Rob.Bodington@eurostep.com
Phone: +44 (0)1454 270030
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