Hardware manual

Starting up fieldbus communication and programming the ABB PLC
90
2. The function blocks of the main program on rows 1 to 4 are shown below. The
function blocks on rows 1 to 3 show the inputs and outputs of Control Word and
Status Word. A function block on row 4 declare action presented in section
Introduction to the actions on page 97.
Tool/Step
Introduction to the PLC main program