Omron NX-SL3300 User Manual page 240

6 Programming
Connecting Instructions or User-defined Function Blocks
l Correct Connection Configurations
Parameters and commands, or user-defined function blocks can be connected with a connecting line.
Var1
The connecting line can connect two instructions or two user-defined function blocks.
FB1
Multiple instructions or user-defined function blocks can be connected to a single instruction or user-defined function block.
FB1
FB2
l Incorrect Connection Configurations
You cannot connect more than one instruction or user-defined function block to the right of another
instruction or user-defined function block. In this case, you must pass the signal to a variable as
shown in the following figure.
FB1
You cannot route a connecting line from the output to the input. In this case, you must pass the
signal to a variable as shown in the following figure.
6 - 24
FB1
Var2
FB2
FB3
FB2
FB3
FB1 FB2
Var1
FB3
Var1
NX-series Safety Control Unit User's Manual (Z930)