Hitachi CP-AW250NM Operating Manual page 214

Communicaion settings
1. Protocol
19200bps,8N1
2. Command format
Byte Number
Command
Action
<SET>Change setting to
desired value [(cL)(cH)]
by [(eL)(eH)].
<GET>Read projector
internal setup value [(bL)
(bH)] .
<INCREMENT>
Increment setup value
[(bL)(bH)] by 1.
<DECREMENT>
Decrement setup value
[(bL)(bH)] by 1.
<EXECUTE> Run a
command [(bL)(bH)].
[Header code] [Packet] [Data size]
Set [BEh, EFh, 03h, 06h, 00h] to byte number 0 ~ 4.
[CRC ag]
For byte number
17).
table (
[Action]
Set functional code to byte number 7, 8.
< SET > = [01h, 00h], < GET > = [02h, 00h], < INCREMENT > = [04h, 00h]
<DECREMENT> = [05h, 00h], <EXECUTE> = [06h, 00h]
Refer to the Communication command table
[Type] [Setting code]
For byte number
17).
table (
("h" shows hexadecimal)
0 2
1
Header
Header
code
Packet
L H
BEh EFh 03h
5, 6, RS-232C Communication / Network command
refer to
9 12 RS-232C Communication / Network command
, refer to
RS-232C Communication (continued)
4 6
3 5
Data CRC
size ag
L H L H
(aL) (aH) 01h 00h (bL) (bH) (cL) (cH)
(aL) (aH) 02h 00h (bL) (bH) 00h 00h
06h 00h
(aL) (aH) 04h 00h (bL) (bH) 00h 00h
(aL) (aH) 05h 00h (bL) (bH) 00h 00h
(aL) (aH) 06h 00h (bL) (bH) 00h 00h
( above).
9
9 10
7 8 11
Data
Setting
Action Type
L H L H
12
code
L H