# Referencing

- [Data Read Global](/usermanual/function-blocks/blocks-reference/data-logic/referencing/data-read-global.md)
- [Data Read Local](/usermanual/function-blocks/blocks-reference/data-logic/referencing/data-read-local.md)
- [Data Write Global](/usermanual/function-blocks/blocks-reference/data-logic/referencing/data-write-global.md)
- [Data Write Local](/usermanual/function-blocks/blocks-reference/data-logic/referencing/data-write-local.md)
- [Debug Input](/usermanual/function-blocks/blocks-reference/data-logic/referencing/debug-input.md)
- [Tag From](/usermanual/function-blocks/blocks-reference/data-logic/referencing/tag-from.md)
- [Tag To](/usermanual/function-blocks/blocks-reference/data-logic/referencing/tag-to.md)
