Internal references are DeltaV built-in parameter data types. They allow you to refer to any input, output, or parameter that are available within the current module or phase. The best way to configure internal references is by using the parameter browser available in all of the expression dialogs. By selecting a parameter from the browser, you can avoid the potential of typographical errors and case sensitivity when referencing block parameters.
When using a reference field other than the .CV field, you will need to include the field name.
For a module, MOD, that contains the composite, COMPOS2, that contains the composite, COMPOS1, that contains the function block, PID1, all of the internal references shown below refer to the same parameter:
Module relative — /COMPOS2/COMPOS1/PID1/GAIN
Module relative — /PID1/GAIN
Block relative — ^/COMPOS1/PID1/GAIN
For phases, a reference to a phase parameter looks like:
Phase relative — /+/WDOG_STATE.CV