Mathematical comparison symbols in derivations: =>/<=/= or GE/LE/EQ

Pinnacle 21 Support Define.xml
1

Where in the define.xml ???
In the “WhereClauses” or in the “MethodDef”. And if in the latter, in the “Description” or in the “FormalExpression”.

Please be PRECISE…

In the WhereClause, compatators like “GE”, “GT” etc. must be used, as is clearly indicated in the define.xml specification. Please read it.

For MethodDef, in “Description” and “FormalExpression”, the define.xml standard does not prescribe anything.
But please take into account that some comparators are “special XML characters” and must be escape. For example “<” must be escaped as “>”.

2

Hi Jozef. Sorry, I should have mentioned it more precisely. in WhereClause under VLM GE/EQ operators are used.
I was thinking about derivations so MethodDef.

Thank you for your opinion.

3

Hi Everyone,

we’re working on specification on a project and we’ve encountered two different approaches in derivations.

One uses symbols like =, =>, <= in derivation and other uses SAS symbols EQ, NE, LE, GE etc.

Could you please advise if there is any unification established? I was not able to find any.

Thank you in advance.