Omron CS1G/H-CPUxxH Instructions Manual page 211

Sequence Control Instructions
Examples
190
IL(002) and ILC(003) cannot be nested, as in the following diagram.
When CIO 000000 is OFF in the following example, all outputs between
IL(002) and ILC(003) are interlocked. When CIO 000000 is ON in the follow-
ing example, the instructions between IL(002) and ILC(003) are executed nor-
mally.
Section 3-5