PLC glossary
AND
Both conditions must be true. Start AND Permit allows a request only when permission is also present.
- Also called
- and operator
- On site
- A wash pump needs both an operator request and enough water in its supply tank.
- Siemens
- AND in SCL, series contacts in LAD and & in FBD.
- Rockwell
- AND in ST, series instructions in Ladder and BAND in FBD.