Chapter 5 POU and Task Language : Users have to select a programming language in which the POU is written. (The language may vary according to the selected PLC series) Comment : Users can type a comment on the POU in this box. *. If the POU created is a POU of the program type, the Active checkbox will be in the window. The function of the Active checkbox will be introduced in section 5.4.2. (3) After the setting is complete, the users can click OK . If the POU created is a POU of the program type, the POU will be listed in the Programs section and the default task section. If the POU created is a POU of the function block type, the POU will be listed in the Function Blocks section. 5-19