Chapter 6: Instructions 61
Instruction
Mnemonic Parallel Circuit Range
■ Bit
Byte
OR
ORN
Parallel connection
Word
Ladder
OR: NO (normally open) contact parallel connection.
ORN: NC (normally closed) contact parallel connection.
Description
1. OR and ORN (OR NOT) indicate parallel connection of each contact.
2. The number of ORs and ORNs used within a branch is unlimited.
Example
Program Expression Time Chart
Contact M000.1 is On if contact R000.1 is On or contact R000.2 is Off.
(OUT)
R000.1 M000.1
(OUT)
R000.2
R000.1
R000.2
R000.0
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