PLC glossary
Function block
A reusable piece of programme with its own remembered values. Give each separate machine its own copy of that memory.
- Also called
- FB
- On site
- Two pumps use the same control design but keep separate start totals.
- Siemens
- An FB definition is called with its own instance data.
- Rockwell
- An AOI provides reusable custom control logic; its instance tag holds data.