Run-Stop-Jog-Continue (RSJC) is a control feature available on Haas mills and lathes for software versions M11.02 and L9.02 and higher.
This feature lets you to stop a program that is in operation, jog away from the part, and then continue the program. After the tool is away from the part, you can replace a worn insert or broken tool or examine an important part feature. You can then continue the program again.
Refer to your Operator's Manual for more information about this function.