HP xp8000 HP xp8000 series digital projector - RS232 Protocol Reference - Page 8

The following table illustrates the types of notifications that can result if a request uses incorrect syntax. This incorrect syntax... No asterisk at start of request Unrecognized keyword Invalid parameter Specifies an action with an unnecessary parameter Requests a valid setting that is unavailable (for example, due to lack of an input source, or to the setting not being supported for the input source) Attempts to increment/decrement a setting past its defined limits. Attempts to modify a read-only setting. Generates this type of notification None: Request: Notification: PMOD=1 None: Request: Notification: *BTR=65 Echoes the request keyword with the current value: Request: Notification: *BRT=-65 *BRT=10 Ignores the parameter, executes the request keyword, and echoes the keyword: Request: Notification: *SYNC=65 *SYNC Echoes the request keyword, with a question mark instead of a value: Request: *CSPC=0 Notification: *CSPC=? Ignores the request, and echoes the keyword with the current value for the setting. For example, if BRT is set to 100 (its maximum): Request: Notification: *BRT=+ *BRT=100 Ignores the request, and echoes the keyword with the current value for the setting: Request: Notification: *STAT=3 *STAT=1 8 RS-232 protocol reference