FB21 Field Bus Special Function 1
Function selection via serial input corresponding to Control Word bit 9.
FB22 Field Bus Special Function 2
Function selection via serial input corresponding to Control Word bit 10.
FB23 Field Bus Special Function 3
Function selection via serial input corresponding to Control Word bit 11.
FB24 Field Bus Special Function 4
Function selection via serial input corresponding to Control Word bit 12.
FB25 Field Bus Special Function 5
Function selection via serial input corresponding to Control Word bit 13.
FB26 Field Bus Special Function 6
Function selection via serial input corresponding to Control Word bit 14.
FB27 Field Bus Special Function 7
Function selection via serial input corresponding to Control Word bit 15.
8.15.7 PDO Data
The PDO Data are the actual value of the process data out, linked to the diagnostics
parameters from the FB13-16 map assignments.
FB30 PDO1 Data
Actual value of Process Data Output 1.