Hitachi CPX9 - Communication Settings

9
RS-232C Communication (continued)
Communication settings
1. Protocol
19200bps,8N1
2. Command format
("h" shows hexadecimal)
Byte Number
01 2 3456
789101112
Command
Action
Header Data
Header
code
Packet
Data
size
CRC
flag
Action Type
Setting
code
LH LHLHLHLHLH
<SET> Change setting to
desired value [(cL)(cH)]
by [(eL)(eH)].
BEh EFh 03h 06h 00h
(aL) (aH) 01h 00h (bL) (bH) (cL) (cH)
<GET> Read projector
internal setup value [(bL)
(bH)] .
(aL) (aH) 02h 00h (bL) (bH) 00h 00h
<INCREMENT>
Increment setup value
[(bL)(bH)] by 1.
(aL) (aH) 04h 00h (bL) (bH) 00h 00h
<DECREMENT>
Decrement setup value
[(bL)(bH)] by 1.
(aL) (aH) 05h 00h (bL) (bH) 00h 00h
<EXECUTE> Run a
command [(bL)(bH)].
(aL) (aH) 06h 00h (bL) (bH) 00h 00h
[Header code], [Packet], [Data size]
Set [BEh, EFh, 03h, 06h, 00h] to byte number 0
~ 4.
[CRC flag]
For byte number 5, 6, refer to RS-232C Communication command 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 command table above.
[Type], [Setting code]
For byte number 9 〜 12 , refer to
RS-232C Communication command table
.