Digital Projection Vision 30 Series, Communication Protocol Manual

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Acknowledge/Response
Acknowledge is optional and ON by default. Auto acknowledge can be turned on and off with ECHO commad. It can also be activated
on a per command basis using modifier A.
ACK ADDRESS SEP COMMAND SEP VALUE TERM
1 byte 3 bytes 1 byte 4 bytes 1 byte 6 bytes 1 byte
Field Description Comment
ACK ASCII character ‘%’ Always
SEP ASCII space Always
VALUE 6 bytes return value Always
TERM Termination char 0x0D (CR) Always
Most commands value returns the actual value of the requested command. If the requested command is not valid the response may
include an error message.
Code Error message Description
!00001 Access denied Current access level is too low
!00002 Not available Command currently not available.
Ex. contrast is not available when the
projector is searching
!00003 Not implemented Command to implemented
!00004 Value out of range Value out of range
Some commands could return a value that is more than 6 characters, for instance strings.
Code Extended info Description
e00001 Extended info, string A description string follows
Example:
> :seri ?
> %001 SERI e00001 07010001
Examples
The protocol accepts one single SPACE between fields, or no SPACE between fields.
‘CR’ ASCII value carriage return, hex value 0x0D.
SET-commands
SET POWER ON
: P O W R 1 ‘CR’
:POWR1’CR’
ACKNOWLEDGE POWER ON
% 0 0 1 P O W R 0 0 0 0 0 1 ‘CR’
%001 POWR 000001’CR’