# IO Overview

Command | Supported Platforms
--- | ---
BEEP.DATAVALID-FAIL | ALL except for DM50, DM60 and DM70.
BEEP.DATAVALID-FAIL-OL | Wireless readers.
BEEP.GOOD | ALL except for DM50, DM60 and DM70.
BEEP.GOOD-OL | Wireless readers.
BEEP.NO-READ | ALL except for DM50, DM60 and DM70.
BEEP.NO-READ-OL | Wireless readers.
BEEPER.ENABLED | All
BUTTON.3SEC-ACTION | Fixed mount readers. Test Mode is only supported on the DM300, DM360, DM370, DM470 and DM503.
BUTTON.ACTION | MX-1000
BUTTON.ENABLE | Fixed mount readers.
ENCODER.COUNT | Fixed-mount readers
ENCODER.DISTANCE-TO-OUTPUT | DM280, DM300, DM360, DM370, DM470
ENCODER.DOUBLE-RATE | DM503
ENCODER.DOUBLE-RATE | DM360, DM370, and DM470.
ENCODER.FLUSH | DM300, DM360, DM370, DM470, DM503
ENCODER.MODE | Fixed-mount readers
ENCODER.RESET | Fixed-mount readers
ENCODER.RESOLUTION | DM280, DM300, DM360, DM370, DM470, DM503
INPUT.ACTION | Fixed-mount readers
INPUT.ACTION1 | Fixed mount readers.
IO-LINE.DIRECTION | DM360, DM370, DM470
KEY.LANGUAGE | ALL except for DM60, DM300, DM360, DM370, DM470 and DM503.
KEY.ZERO-PAD | ALL except for DM60, DM300, DM360, DM370, DM470 and DM503.
LIGHTCURTAIN.BEAM-SPACING | DM503
LIGHTRING.DURATION | DM360, DM370, DM470 and DM503
OUTPUT-QUEUE.FLUSH | DM300, DM360, DM370, DM470, DM503
OUTPUT.ACTION | Fixed mount readers.
OUTPUT.EVENTS | Fixed mount readers.
OUTPUT.PULSE-WIDTH | Fixed mount readers.
OUTPUT.RESERVED | Fixed mount readers, except DM50, DM60 and DM70.
RESULT.NO-READ-STRING | ALL
TRIGGER.DEBOUNCE-DELAY | Fixed-mount readers
TRIGGER.END-HOLDOFF-DISTANCE | DM280, DM300, DM360, DM370, DM470, DM503
TRIGGER.END-HOLDOFF-TIME | Fixed-mount readers
TRIGGER.HOLDOFF-DISTANCE | DM280, DM300, DM360, DM370, DM470, DM503
TRIGGER.HOLDOFF-TIME | Fixed-mount readers
TRIGGER.HOLDOFF-TYPE | Fixed-mount readers
TRIGGER.POLARITY | Fixed mount readers.
TUNE-BUTTON.ENABLE | DM280, DM300, DM360, DM370, DM470 and DM503.