HP xp8020 HP xp8000 series digital projector - RS232 Protocol Reference - Page 16

RS-232 keyword listing (continued) Keyword Parameters Description STAT ? Queries the projector's current state: • 0 = standby state • 1 = on • 2 = warm-up state • 3 = cool-down state Note: STAT can be used anytime, regardless of the projector's state. ALERT Not a request - Notifies when a system alert condition occurs: see note • 0 = lamp life warning • 1 = lamp life reached • 2 = lamp faulty • 3 = lamp problem • 4 = internal temperature too high • 5 = fan problem • 6 = ambient temperature too high Note: ALERT is sent only by the projector, and cannot be used in requests. Changing input sources When the input source is changed back to a source used previously, the video settings usually return to their previous values for that source. However, if too many different types of sources have been selected since this source was last used, default values will be used instead. The projector stores values for the last 14 sources used. ✎ A different source is defined as any input that has different signal characteristics from another input, even if connected to the same port on the projector. If analog and digital sources are simultaneously wired to the M1 port, the projector treats them as separate inputs. However, if the M1 source is selected, the analog M1 input is activated. Use the NXT keyword to activate the digital M1 input. 16 RS-232 protocol reference