Echelon LonPoint Application and Plug-In - Manual (Page 75)

The LonPoint Application and Plug-in Guide 8-3
Analog Function Block
This tab appears as follows:
This tab displays the flow of information through the AFB functional block. For
each of the analog inputs, use the Inputs tab to determine whether the A1 or
A2
network variable value or a constant value will be used. Use the Function
tab to specify the function to be performed on the two values.