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7 Programming
NX-series Safety Control Unit User’s Manual (Z930)
7-5 Programming Operations
7
7-5-4 FBD Programming
The operating procedures for local variables are the same as the procedures used for global
variables. Refer to 7-5-3 Registering Variables on page 7-38.
With the Safety CPU Unit, you use the FBD language to express algorithms that are inside the POUs
(programs and function blocks). You add and connect functions and function blocks in the FBD editor to
build algorithms inside POUs (programs and function blocks).
This section describes how to use the FBD editor.
Programs
1 Double-click a program under Programming − POUs − Programs in the Multiview Explorer. Or,
right-click the program and select Edit from the menu.
The FBD editor for the program is displayed.
Refer to 7-5-2 Registering POUs on page 7-29 for the program registration procedure.
Function Blocks
1 Double-click a registered function block under Programming − POUs − Function Blocks in
the Multiview Explorer. Or, right-click the function block and select Edit from the menu.
The FBD editor for the function block is displayed.
Refer to 7-5-2 Registering POUs on page 7-29 for the function block registration procedure.
7-5-4 FBD Programming
Opening and Using the FBD Editor