Your first step in programming a circuit program is to select the blocks for your circuit. Determine the order in which you want to insert the I/O and the standard/SFB blocks.

Under Co in the programming toolbar, you will find the constants and terminals, that is, a selection of I/Os and constant signals. Under BF, you will find the basic logic functions of Boolean algebra: standard digital logic blocks. Under SF you can find the special functions. You can also call the respective function groups via the function keys.

or [F6] → Constants / connectors

or [F8] → SFBs

	Only in the FBD and UDF Editors: or [F7] → Basic functions
	A quick and easy way of selecting blocks and placing them into your circuit program