Help with nFactoryTalk View Syntax

[Leery24]

Hi everyone,
I'm trying to write an expression in the indicator field of a multistate indicator but it doesnt matter what i do it isnt giving me the result i was expecting. From reading other posts here i do believe it is possible but i cant work out why it isnt working on this occasion. here is the expression...

If ({S4\N10_13_0} == 1) Then 1
Else If ({S4\N7_80_10} == 1} Then 2
Else 0

It appears as though the first line of the expression is working as when i turn the first tag on it does show state 1. the rest of the time it shows error.
Could someone please shine some light on what it could be that is going wrong.
King Regards

 

[cwal61]

Maybe a typo but the 2nd expression ends with } not ). If the tags are both bits then the equal 1 is not needed. The expression could be:

If {S4\N10_13_0} Then 1 Else
If {S4\N7_80_10} Then 2 Else 0

Note: Expressions are solved from top to bottom. So if both are true then it will show top expression. Just something to remember if you need to set priority in an expression.

something like If {this} then Fault else If {that} then Warning Else OK.