Omron SYSMAC C2000H Operation Manual page 256

Debugging
Key Sequence
Example
Meaning of Displays
Address
Read direction (+/–)
Address relative to the trigger address
IL: Within an IL/ILC block
JP: Within a JMP/JME block
NP: Block program not executed
0: OFF
1: ON
B: Block program execution
Section 7-1
251