Christie DS Series Service Manual page 115

RS-232C Communication
When the projector connects to the computer by RS-232C communication, the
projector can be controlled with RS-232C commands from the computer.
For details of RS-232C commands, refer to RS-232C Communication /
Network command table.
Connection
Turn o� the projector and the computer.
1.
Connect the projector's CONTROL port and the computer's RS-232C port
2.
with a RS-232C cable (cross). Use the cable that ful� lls the speci� cation
shown in � gure.
Turn the computer on, and after the computer has started up turn the projector
3.
on.
Set the COMMUNICATION TYPE to OFF in the COMMUNICATION menu of the
4.
OPTION - SERVICE menu.
LWU900-DS/LHD878-DS/LWU755-DS
User's Manual - Technical
cation RS-232C Communication (continued)
Communication settings
, the
1. Protocol
19200bps, 8N1
2. Command format
Byte Number
Command
port
Action
ion
<SET>Change setting to
desired value [(cL)(cH)]
jector
by [(bL)(bH)].
<GET>Read projector
nu of the
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 to 4.
[CRC �a�]
For byte number
[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
[T��e] [�ettin� code]
For byte number 9 to 12, refer to
Network command
ev. 1 (12-2018) LWU900-DS/LHD878-DS/LWU755-DS
S Series TECH User's Manual - Technical
LWU900-DS/LHD878-DS/LWU755-DS
Service Manual
LWU900-DS / LHD878-DS / LWU755-DS
RS-232C Communication
CONTROL
RS-232C
RS-232C cable
(cross)
CONTROL port
RS-232C port
of the computer of the projector
⑨ ⑧
9 8 7 6
5 4 3 2 1 ⑤ ④ ③
(1) －
CD (1)
RD(2) (2) RD
TD (3) (3) TD
(4) －
DTR (4)
GND (5) (5) GND
(6) －
DSR (6)
RTS (7) (7) RTS
CTS (8) (8) CTS
(9) －
RI (9)
17
("h" shows hexadecimal)
0 1 2 3 4 5 6
Header
Header Data CRC
code size �ag
Packet
L H L H L H
(aL) (aH) 01h 00h (bL) (bH) (cL) (cH)
(aL) (aH) 02h 00h (bL) (bH) 00h 00h
BEh EFh 03h 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
5, 6, RS-232C Communication / Network command
refer to
table.
RS-232C Communication /
table.
18
⑦ ⑥
② ①
020-001583-01 Rev. 1 (12-2018)
LIT MAN USR DS Series TECH
7 8 9 10 11 12
Data
Setting
Action Type
code
L H L H L H
table.
020-001583-01 Rev. 1 (12-2018)
LIT MAN USR DS Series TECH
114
RS-232C Communication (continued)
Communication settings
1. Protocol
19200bps, 8N1
2. Command format
("h" shows hexadecimal)
Byte Number 0 1 2
Command Header
Header
code
Packet
Action
L H
<SET>Change setting to
desired value [(cL)(cH)]
by [(bL)(bH)].
<GET>Read projector
internal setup value [(bL)
(bH)] .
<INCREMENT>
BEh EFh 03h
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 to 4.
[CRC �a�]
5, 6, RS-232C Communication / Network command
For byte number refer to
[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
[T��e] [�ettin� code]
For byte number 9 to 12, refer to RS-232C Communication /
Network command table.
LWU900-DS/LHD878-DS/LWU755-DS
User's Manual - Technical
020-001586-01 Rev. 1 (02-2021)
LIT MAN SERV DS Series
3 4 5 6 7 8 9 10 11
Data
Data CRC Setting
Action Type
size �ag code
L H L H L H L H L
(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
table.
table.
020-001583-01 Rev. 1 (12-2018)
18
LIT MAN USR DS Series TECH
12
H