3M MP8780 Operator's Manual page 33

A.8 Serial Inferface Command Codes
Command Code Formats
All codes in this document are in ASCII Text. In order to get this to work you must send at the same
communication setting as the projector.
This should be 9600 8N1.
For the rest of this document CR is a carriage return which is code 13.
There are two types of commands that can be sent to the projector. They are Write or Read commands.
Write Command Format
User:
Code CR
Projector (if it worked):
O
Projector (if it did not work):
N
Read Command Format
User:
Code CR
Projector (if it worked):
Data
Projector (if it did not work):
N
A-10
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K CR
G CR
O K CR
G CR
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