Using Data Types Parameters

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Hello everyone,

I am trying to use datatypes parameters to get a more complex structure. To do this I have some parameters and I make the OPC item path with them but the problem is that I need to make a calculation to get the final path, i.e:
ns=1;s=[{param1}_{param2}]R{(param3-1)*64+1019}

This does not work, I have checked that if I make only one operation it works ({param3+1} or {param3*64}) but when there are more than one I can’t do it.

Is there any way to do more than one operation?

Thanks!

2

eyudes,

did you find a solution to this challenge?
I’m also trying to do something like this, but haven’t found a way.

This line OPC Item Path would work (e.g. Siemens addressing):

[{ModAddrDeviceName}]{ModAddrDb},X{ModDsOffs+ModDsLen}.3

but this one would not:

[{ModAddrDeviceName}]{ModAddrDb},X{ModDsOffs+ModDsLen*InsDsId}.3

Parenthesis in math operations don’t work either.

Thanks.