[🌐KR](<https://synctree-guide.notion.site/System-a2accf45dd9d4a449d99b95f2d22e6a6>)

This document explains the types and usage of System blocks.

• Index

▶What is System Blocks?

• System blocks are blocks that perform internal commands when executing BizUnit.
• Currently, there is a Sleep block, and more System blocks will be added in the future.

▶Sleep Block

• The Sleep block is used to wait for a certain amount of time in BizUnit.

1) Sleep(second) Block

• Converts the number entered in the block to seconds and delays the operation.
• The input value must be an integer type greater than or equal to 0.

• Example of using the Sleep(second) block

2) Sleep(microsecond) Block

• Converts the number entered in the block to microseconds (1 millionth of a second) and delays the operation.
• The input value must be an integer type greater than or equal to 0.