Omron DeviceNet Safety, System Configuration Manual

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Programming Section 6-3
Program Execution Sequence
The order of execution of function blocks is automatically set by the Logic Edi-
tor and displayed in the upper right corner of each function block. The execu-
tion order would be as follows in the following example:
1: E-STOP
2: Reset
3: EDM
Execution Sequence of Programs with Loopbacks
Jump addresses can be used in programs to create loopbacks. If a program
contains more than one loopback (e.g., Jump 1 to Jump 1 and Jump 2 to
Jump 2 in the following example), the sequence of execution will be in the
order that the function blocks are positioned. Carefully test all programs con-
taining more than one loopback in the actual application to be sure they exe-
cute properly.