Connecting to a room controller
49
The following table lists the types of notifications generated in various situations.
Incorrect commands cause the following types of notifications:
•
No asterisk at start of command—no response
•
Unrecognized command name—command with “?” added
•
Command that is currently unavailable—command with “?” added
•
Invalid parameter—command with current value
•
Action command with unnecessary parameter—action command
•
Action command that is unavailable—action command
The following simplified example shows how the projector typically responds to a request to
change the active input source. Note that the three latter notifications are delayed.
This type of request...
Generates this type of notification...
Modify a setting
Echoes the request command and shows the resulting value:
Request:
*BRT=65<CR>
Notification:
*BRT=65<CR><LF>
Query a setting
Echoes the request command and shows the resulting value:
Request:
*CON=?<CR>
Notification:
*CON=40<CR><LF>
Execute an action
Echoes the request command:
Request:
*NXT<CR>
Notification:
*NXT<CR><LF>
Request:
*RSRC=4<CR>
Notification:
*RSRC=4<CR><LF> (acknowledges request)
*SRC=0<CR><LF>
(projector is attempting to acquire source 4, and in the interim
has no valid source)
*SRC=4<CR><LF>
(source 4 is now active)
*BRT=60<CR><LF>
(brightness has been modified for source 4)
*CSPC=?<CR><LF> (color space is not supported for this input)
