Echelon IzoT NodeBuilder - Manual (Page 170)

functional block is based. For example, a UNVT could not be added to a SFPT, but a SNVT may be
added to a UFPT.
To add an implementation-specific network variable to a functional block, follow these steps:
1. Right-click the Implementation-specific NVs folder for the functional block in the Program
Interface pane and then click Add NV on the shortcut menu.
Alternatively, you can right-click the Network Variables folder in the Program Interface pane and
select Add NV from the shortcut menu, or you can drag a network variable from a Network
Variables folder in the Resource pane to the functional block’s Implementation-specific NVs
folder or the Network Variables folder in the Program Interface pane.
2. The Add NV to Functional Block dialog opens (or Add NV to Device dialog if you are adding
the network variable to the device folder).
156 Defining Device Interfaces and Creating their Neuron C Framework