PLC glossary
OR
At least one condition must be true. Either condition, or both together, can make the result true.
- Also called
- or operator
- On site
- Either Stop or a low-water condition can remove the pump command.
- Siemens
- OR in SCL, parallel paths in LAD and >=1 in FBD.
- Rockwell
- OR in ST, parallel branches in Ladder and BOR in FBD.