Yes. *800 series modules can be used as remote I/O drops in a Quantum or M580 system with the Unity software. For more information on which modules are compatible, and configuration information please consult the Modicon Quantum 800 Series I/O Modules with Unity Reference Manual.
*Note: Although compatible, the 800 series family of I/O is obsolete. Please consider alternatives offered in the Quantum or BMX families of IO .