InTouch indirect tags

Is it possible to set an indirect tag's reference "indirectly"?

For example, I have a number of indirect tags TAG_INDIRECT_1, TAG_INDIRECT_2, ... TAG_INDIRECT_n, and a function GetTagname(i) that returns the i'th tagname from some list (a config file, for instance).

I could explicitly set the references like so:

TAG_INDIRECT_1.Name = CALL GetTagname(1);
TAG_INDIRECT_2.Name = CALL GetTagname(2);
etc.

What I would like to do is something like this:

FOR i=1 TO n
SetTagname("TAG_INDIRECT_" + i, CALL GetTagname(i));
NEXT i

I'd prefer a WW Script solution, but would be willing to write a custom DLL if necessary.

Any ideas?

Thanks,

Steve

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Greetings Syran,
Well I don't have InTouch installed in my PC right now (I'm at home) But I don't think that you can loop on your indirect tag name to get it change with each iteration of the loop.

Well the easy way, You may simply creat a macro in Excel and generate any number of lines of code easly then copy & paste it in a function.

One day I was developing a SCADA software for a water treatment unit, It was about 800 I/O, I used visual basic to do it, Imagine the number of he lines of code ... It was 20,000 line!!

The project was finished within 3 months (We were only two engineers in this) .. The key of generating all these lines of code was Excel macros.

I don't think you can do it. The problem is that you need to use the .Name of the indirect tag, in which case you can't use a string (or build a string) to represent the tag itself. At least I haven't been able to find a way.

Thanks, guys.

The problem with generating the code to cut and paste is that I don't know until runtime how many tags I'll be using. Of course, all the TAG_INDIRECT_x tags must be in the dictionary, but by looping I can bail out early when I detect the end of my list.

Tark, I think you may be right- what I was hoping for was something along the lines of the SetCommentField(strTagname, strComment) function from the KBCD.

Steve

sryan said:

Thanks, guys.

The problem with generating the code to cut and paste is that I don't know until runtime how many tags I'll be using. Of course, all the TAG_INDIRECT_x tags must be in the dictionary, but by looping I can bail out early when I detect the end of my list.

Click to expand...

I see ...
Another thing: You said that you don't know until runtime how many tags you 'll be using.
Ok, Do you know how many possibilities that you have in runtime. If it is known you may use an If Then ElseIf statment or Select case statment to select which lines of code to be used.

Or maybe, You have to change the hall idea!
You may share us your application need so we can think with you.

Best regards.