Operator terminals, HMI displays and modules, keypads, touch interfaces, graphic overlays, pushbuttons, selectors, joysticks, hand and foot controls and equipped control stations. Includes position, limit, reed, pull-wire and geared switches, interface and timing relays, monitoring relays and local thermostatic controls. Excludes power-circuit protection relays, general measurement instruments, standalone signalling lamps, empty control housings and robot-specific teach pendants. Combined programmable HMI-controller units belong with controllers.