RE: [plcs-dex] Implementer guidance

[Gyllström Leif <leif.gyllstrom@aerotechtelub.se>]

Agree

Regards

Leif

-----Original Message-----
From: Nigel Shaw [mailto:nigel.shaw@eurostep.com] 
Sent: den 16 januari 2006 10:07
To: plcs-dex@lists.oasis-open.org
Subject: RE: [plcs-dex] Implementer guidance

There are multiple possible interpretation of "$" whilst /IGNORE has a
defined meaning. Therefore send "/IGNORE" would be my preference.

As examples, "$" can be interpreted as "there is no value", "I do not know
the value", "I know the value but do not want to tell you", "you are not
allowed to know the value",... 

	Nigel

 

-----Original Message-----
From: Barker, Sean (UK) [mailto:sean.barker@baesystems.com] 
Sent: 16 January 2006 08:47
To: plcs-dex@lists.oasis-open.org
Subject: [plcs-dex] Implementer guidance



I am resolving an issue on the implementer guidance for /IGNORE.

 Attribute values are set to '/IGNORE' when the information that could be
held by the attribute will be instead assigned to the instance of the
entity. Note: required attributes will always have an equivalent assigned,
whereas optional attributes need not be assigned.

While this describes how to populate instance diagrams, the question arises,
what happens in the physical file. That is, should an unpopulated optional
attribute contain the value "$" or "/IGNORE"?


Sean Barker
0117 302 8184


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