Unitronics Vision™ Snap-In I/O Modules are designed to snap into the Vision™ series PLC+HMI controllers to create an all-in-one controller. Snap-in I/O Modules plug directly into the back of the Vision unit. Local or Remote I/Os may be added via expansion port or via CANbus. The Vision™ Snap-In I/O Modules are compatible with the Vision™ models V560, V700, V1040, and V1210.