Calculator Transfer Object
You can use all available (numerical) values as input for calculations. You then use the results as a data source in the further transfer. Create a computer transfer object within the connection as explained.

Formula & Calculator Transfer Object
After double-clicking on the transfer object, set the following properties:
- Use the button “New” to add as many placeholders as your formula requires. These placeholders are filled later with values of OPC items, from database tables, from variables ...
- Compose the formula.
- The placeholders are simply entered or accepted by double-clicking.
- Use the normal mathematical symbols for connection (
+-*/()
). - Functions apply to the immediately following placeholder, otherwise please set brackets (e.g.
sqrt(A+B)
= Square root of the sum of A and B). - Rounding functions: Via the “Round up” or “Round down” button (rounds up to whole numbers)
- Concatenate function = concatenate strings: The values must be marked with "" in the formula e.g. CONCATENATE("A","B").
- Additional functions via the button “Further”.
- Use the “Test” button to open another dialog. Enter values for the placeholders here and check the formula.
- If all right, confirm both dialogues with “OK”.
The computer transfer object is now available in the connection. Connect variables, OPC items, database fields, etc. with the placeholders and use the result as a data source.