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RS232/485
USER MANUAL
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Mitsubishi Electric RS232/485, MDT652S USER MANUAL

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RS232/485/LAN Serial Communication Control for MDT652S
1. Application
This document defines the communication protocols for serial control of the MDT652S.
-----Revision History-----
1
st
Release May. 24 2011. H.Tanizoe, M.Juichiya, T.Kimura, Y.Ashizaki
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2. Connectors and wiring A: RS232C connection
Connector: D-Sub 9-pin Cable: Cross (reversed) cable or null modem cable
B: CAT5 RS485 connection
Connector:
D-SUB 9pin or USB(Either one can be used for communication between PC and CAT5 Tx-BOX and Rx-BOX (Option). In order to use the USB, you need USB driver with your PC installed. Please check User's manual for details.) Cable:
(D-SUB 9pin: Full wired Cross (reversed) cable, USB: Standard USB cable (A-B))
Note: The CAT5 serial communication function requires half duplex communication control by DTR and RTS control which is not required by simple RS232C control. The RS485 communication function is different fromRS232C control method. Please check Appendix B for more details.
C: LAN connection
Connector: Modular 8pin (RJ45) Cable:
Modular 8pin (RJ45),
Strait CAT5/6/7 LAN cable
* If you connect one PC and one display without LAN HUB, you use Cross LAN cable.
PC LAN HUB Display #1
Display #2
LAN cable LAN cables
Note: LAN control is converted to RS-232C control in the display.
USB Cable
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3. Communication Parameter
Set each communication parameters to the PC connected with each kind of cable.
A: RS-232C connection
(1) RS-232C direct connection between PC and Display
Interface
RS-232C (
Asynchronous, Full-duplex)
Baud rate
9600bps
Data length
8bits
Parity
None
Stop bit
1 bit
Flow control None
Communication code
ASCII
Communication signals TXD, RXD
B: CAT5 (OPTION) RS-485 connection
(1) USB connection between PC and CAT5 Tx BOX
Interface
RS-232C (
Asynchronous, Half-duplex)
via USB driver
Baud rate
9600bps
Data length
8bits
Parity
None
Stop bit
1 bit
Flow control None
Communication code
ASCII
Communication signals TXD, RXD, RTS
Note: Set the parameters on to USB driver properties. RTS is negative polarity.
(2)
RS-232C connection between PC and CAT5 Tx BOX
Interface
RS-232C (
Asynchronous, Half-duplex)
Baud rate
9600bps
Data length
8bits
Parity
None
Stop bit
1 bit
Flow control None
Communication code
ASCII
Communication signals TXD, RXD, DTR
Note: DTR is negative polarity.
C: LAN connection
(1) LAN connection between PC and Display
Interface
TCP/IP
DHCP client mode
Changeable (default = OFF: not using)
IP address
Changeable (default = 192.168.0.10: depends on model)
Subnet mask
Changeable (default = 255.255.255.0)
Default gateway
Changeable (default = 192.168.0.1: depends on model)
Port
MDT652S:63007/3007(Both of those ports are available. Use 63007 only if you have no support of legacy products.)
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3.1 Communicati on tim i ng
The controller should wait for a packet interval before next command is sent. The packet interval needs to be longer than 600msec for the MDT652S.
[Important Information] HOST system shall send next command after receiving a reply command from Monitor, if it is sequential commands communication. If Host doesn’t wait for monitor’s reply, monitor operation error may happen.
Time-out error handling operation in Controller: Host Controller shall wait the reply from Monitor, after sending command as mentioned above. The time-out setting in Host Controller shall be more than 30sec after sending command to Monitor. (Using the maximum command interval “a
MAX
” is most safety.)
Communication disabled period after power on/off: After Monitor Power on, either by AC switch, Remote Controller or Serial communication command, Monitor goes initialize mode of controller and can not handle the remote control commands correctly during the mode. So do NOT send any command at least 7 sec. after monitor power on/off. If you make the code which send any command after POWER ON/OFF command, please put a wait at least 7 sec. after sending the command. About the other commands, please wait the each periods of command interval from PC. (See below example.)
[Available Command list at DC power off status]
MDT652S can’t accept and reply any command except for the following commands when it is in DC power off or power saving. Power status Read / Read Model name Read / Serial number Read /Power on / Power off
Example of communication timing
a
1
b1
Command #1
Reply #1
Command #2
Reply #2
* Command interval from PC (Wait sending next command for processing in display.)
a > 7sec: When Command #1 is power command “POWER ON”,”POWER OFF”. a > 5sec: When Command #1 is video input command “INPUT D-SUB”,”INPUT VIDEO”, etc. a > 1.8sec: When Command #1 is store the adjusted value command “SAVE CURRENT SETTINGS”, “SAVE CURRENT SETTINGS QUICK”. a > 6sec: When Command #1 is “AUTO SETUP”. a > 30sec: When Command #1 is “FACTORY RESET”, “SCREEN RESET”. (This results in a
MAX
)
a > 600msec: When Command #1 is the others.
* Minimum reply time from display (Additional time depends on command processing in display)
b = 10msec (Typ.): On RS-232C connection (The time depends on models as 10 to 20msec.) b = 140msec (Typ.): On RS-485 connection (The time depends on models as 90 to 140msec.) b = 30sec (max): When Command #1 is “FACTORY RESET”, “SCREEN RESET”.
* Command internal gap (Don’t make a longer interval gap between characters.) C < 10msec: Normal communication for time-out error of each character gap. (Infinit
y
waiting isn’t supported because of
p
r
ocessing freeze.)
PC
Display
b2
a2
Characters of Command #1
c1
0
0
v P
C
R
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4. Communication Format 4-1.Basic command
This command set supports only the basic control of monitor and does NOT support multi monitor control by daisy chained connection. This command set will be written in the user’s manual of MDT652S.
1) Control command diagram The command is structured by the address code, func tion code, data code and end code. The length of the command is different for each function.
2) Control sequence (1) The command from a computer to the LCD monitor will be sent in 600ms. (2) The LCD monitor will send a return command 600ms* after it has received and encoded. If the command isn ’t received correctly, the LCD monitor will not send the return command. (3) The personal computer checks the command and confirms if the command, which has been sent, has been executed or not. (4) This LCD monitor sends various codes other than return code. Whe n ha ving a control sequence by RS-232C, reject other codes from personal computers side. *: The sending time of return command may delay de pending on the condition (during changing of the input signal, etc.).
Example: Turn the power ON ( ’ ’ is for ASCII code)
Note: The replied status is for communication confirmation. When you want to know the display condition, please use the ‘Read command’. (See page 6)
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3) Operation commands The operation commands execute the basic operation setting of this LCD monitor. It may not operate when changing the signal:
Operation
ASCII
HEX
POWER ON
!
21h
POWER OFF
"
22h
INPUT HDMI
_r1
5Fh 72h 31h
INPUT DVI-D
_r2
5Fh 72h 32h
INPUT D-SUB
_r3
5Fh 72h 33h
INPUT BNC _r4 5Fh 72h 34h
INPUT CAT5 _r5 5Fh 72h 35h
INPUT DisplayPort _r6 5Fh 72h 36h
INPUT VIDEO
_v1
5Fh 76h 31h
INPUT YPbPr
_v2
5Fh 76h 32h
INPUT S-VIDEO*
_v3
5Fh 76h 33h
* S-VIDEO is SEPARATE only
4) Read command Host computer sends the command without Data-code to monitor. After receiving this command, the monitor returns the command with Data-code of current status to host comput er. < ex. > When Host computer ask Power status of monitor, the status of monitor is powered-on.
Structure of the Read-command
ASCII
HEX
Function
Data (Receive)
Function
Data (Receive)
ON
vP
1
76 50
31
POWER
OFF(sleep/stand by) vP
0
76 50
30
HDMI
vI
r1
76 49
72 31
DVI-D
vI
r2
76 49
72 32
D-SUB
vI
r3
76 49
72 33
BNC
vI
r4
76 49
72 34
CAT5 vI
r5
76 49
72 35
DisplayPort vI
r6
76 49
72 36
Video
vI
v1
76 49
76 31
YPｂPr
vI
v2
76 49
76 32
Input
S-VIDEO
vI
v3
76 49
76 33
HIGHBRIGHT
vM
p1
76 4D
70 31
Picture mode
STANDARD
vM
p2
76 4D
70 32
Around Main board
resolution 1˚C
tc1
(ex.) +25
74 63 31
2B 20 32 35
Temperature of Internal monitor
Around Power PCB
resolution 1˚C
tc2
(ex.) +31
74 63 32
2B 20 33 31
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5) Remote command
(Not executable in sleep/stand-by mode. When the remote commands are sent while sleep/stand-by mode, the stand-by mode is
only canceled.)
Some remote control operations can be achieved by the remote command codes. The remote commands have no data c odes.
Function
Button’s name on remote
Character ASCII
+/VOLUME r06 72h 30h 36h
-/VOLUME r07 72h 30h 37h AV MUTE ra6 72h 61h 36h AUTO SETUP r09
72h 30h 39h
[Example] When executing the AUTOSETUP. (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands from the PC, etc.
Status code from the projector
Description
‘30’ ‘30’ ‘72’ ‘30’ ‘39’ ‘0D’ 00r09
Command operating the same as the MENU button
‘30’ ‘30’ ‘72’ ‘30’ ‘39’ ‘0D’ 00r09
Command receipt confirmation (Command echo back)
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4-2.Extended command
Note: This command set supports multi monitor control by daisy chained connection. This command set will NOT be written in the user’s manual of MDT652S.
The command packet consists of four parts, Header, Message, Check code and Delimiter.
Sequence of a typical procedure to control a monitor is as follows,
[A controller and a monitor, two-way communication composition figure]
Header Message Check Code Delimiter
Monitor Controller
H
eader
Messa
g
e
Check Code Delimiter
H
eader
Message
Check Code
D
elimiter
Get Parameter
Get Parameter Reply
H
eader
Messa
g
e
Check Code Delimiter
Set Parameter
H
eader
Message
Check Code
D
elimiter
Set Parameter Reply
H
eader
Messa
g
e
Check Code Delimiter
H
eader
Message
Check Code
D
elimiter
Get Parameter Reply
Save Current Setting Comman
d
Get Parameter
H
eader
Messa
g
e
Check Code Delimiter
The controller sends a command to get a value from the monitor that you want to change.
The monitor replies with the current value of the requested item.
The controller sends commands to set an adjusted value.
The monitor replies to the controller for confirmation.
The controller sends a command to get a value for confirmation.
The monitor replies with an adjusted value.
The controller requests to store the adjusted value to the monitor.
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4.1 Header block format (fixed length)
1stbyte) SOH: Start of Header
ASCII SOH (01h)
2
nd
byte) Reserved: Reserved for future extensions.
MDT652S must be ASCII '0'(30h)
3
rd
byte) Destination: Destination equipment ID. (Receiver)
Specify a command’s receiver’s address.
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion. If it is a broad cast command(only “set command” is available), then the ’*’(2Ah)should be applied.
4
th
byte) Source: Source equipment ID. (Sender)
Specify a sender address. The controller must be ‘0’(30h).
5
th
byte) Message Type: (Case sensitive.)
Refer to section 4.2 “Message block format” for more details. ASCII 'A' (41h): Command ASCII 'B' (42h): Command reply. ASCII 'C' (43h): Get current parameter from a monitor.
ASCII 'D' (44h): "Get parameter" reply. ASCII 'E' (45h): Set parameter.
ASCII 'F' (46h): "Set parameter" reply.
6
th
-7th bytes) Message Length: Specify the length of the message (that follows the header) from STX to ETX. This length includes STX and ETX. The byte data must be encoded to ASCII characters. Ex.) The byte data 3Ah must be encoded to ASCII characters '3' and 'A' (33h and 41h).
The byte data 0Bh must be encoded to ASCII characters '0' and 'B' (30h and 42h).
Header
Message Check code Delimiter
SOH
Reserved
'0'
Destination
'A'
Source
Message
Type
Message
Length
1st 2
nd
3
rd
4
th
5
th
6
th
-7th
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4.2 Message block format
“Message block format” is allied to the “Message Type” in the “Header”. Refer to the section 6 “Message format” for more detail.
1
）
Get current parameter
The controller sends this message when you want to get the status of the monitor. For the status that you want to get, specify the “OP code page” and “OP code”, refer to “Appendix A. Operation code table”.
“Message format” of the “Get current parameter” is as follows;
Refer to section 5.1 “Get current parameter from a monitor.” for more details.
2
）
Get Parameter reply The monitor will reply with the status of the requested item specified by the controller in the “Get parameter message”.
“Message format” of the “Get parameter reply” is as follows;
Refer to section 5.2 “Get parameter reply” for more details.
3
）
Set parameter
The controller sends this message to change a setting of the monitor. Message format of the “Set parameter” is as follows;
Refer to section 5.3 “Set parameter” for more details.
4
）
Set Parameter reply
The monitor replies with this message for a confirmation of the “Set parameter message”. Message format of the “Set parameter reply” is as follows;
Result OP code page OP code Type Max value
Requested setting
Value
ETX
STX
Hi Lo Hi Lo Hi Lo Hi Lo MSB LSB MSB LSB
Refer to section 5.4 “Set parameter reply” for more details.
5
）
Command
“Command message” format depends on each command. Usually, this “command message” is used for some non-slider controls and some special operations, such as “Save current settings”, “Get timing report”, “power control”, “Schedule”, etc. Refer to section 5.5 “Commands message” for more details.
Header
Message
Check code Delimiter
OP code page OP code
STX
Hi Lo Hi Lo
ETX
Result OP code page OP code Type Max value Current Value
STX
Hi Lo Hi Lo Hi Lo Hi Lo MSB LSB MSB LSB
ETX
OP code page OP code Set Value
STX
Hi Lo Hi Lo MSB LSB
ETX
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6
）
Command reply
The monitor replies to a query from the controller. “Command reply message” format depends on each command. Refer to section 5.5 “Commands message” for more details.
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4.5 Check code
Check code is the Block Check Code (BCC) between the Header and the End of Message except SOH.
D
n+1
= D1 XOR D2 XOR D3 XOR ,,, D
n
XOR: Exclusive OR
Following is an example of a Check code (BCC) calculation.
Check code (BCC) D
17
= D1 xor D2 xor D3 xor … xor D14 xor D15 xor D16 = 30h xor 41h xor 30h xor 45h xor 30h xor 41h xor 02h xor 30h xor 30h xor 31h xor 30h xor 30h xor 30h xor 36h xor 34h xor 03h = 77h
4.6 Delimiter
Packet delimiter code; ASCII CR(0Dh).
Header Message
Check code
Delimiter
2
7
26 25 24 23 22 21 20 SOH D0 Reserved D1 Destination D2 Source D3 Type D4 Length D5 STX D6 Data D7 | | | | ETX Dn Check code D
n+1
P P P P P P P P
Header Message
SOH Reserved
Destination
Address
Source
Address
Message
type
Message length STX
OP code
page
OP code
Set Value ETX
Check
code
(BCC)
Delimiter
01 30 41 30 45 30 41 02 30 30 31 30 30 30 36 34 03 77 0D
D0 D1 D
2
D
3
D
4
D
5
D
6
D7 D8D9D10D11D12D13 D14 D15 D16D
17
D18
Header Message Check code
Delimiter
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5. Message type
5.1 Get current Parameter fro m a m onit or.
Send this message when you want to get the status of a monitor. For the status that you want to get, specify the “OP code page” the “OP code”, refer to “Appendix A. Operation code table”.
1
st
byte) STX: Start of Message
ASCII STX (02h)
2
nd-3rd
bytes) OP code page: Operation code page. Specify the “OP code page” for the control which you want to get the status. Refer to “Appendix A Operation code table” for each item. OP code page data must be encoded to ASCII characters. Ex.) The byte data 02h must be encoded to ASCII characters '0' and '2' (30h
and 32h). OP code page 02h -> OP code page (Hi) = ASCII '0' (30h) OP code page (Lo) = ASCII '2' (32h) Refer to Operation code table. (Appendix A)
4
th–5th
bytes) OP code: Operation code Refer to “Appendix A Operation code table” for each item. OP code data must be encoded to ASCII characters. Ex.) The byte data 3Ah must be encoded to ASCII characters '3' and 'A' (33h and 41h). OP code 3Ah -> OP code (Hi) = ASCII '3' (33h) OP code (Lo) = ASCII 'A' (41h) Refer to Operation code table.
6
th
byte) ETX: End of Message
ASCII ETX (03h)
5.2 "Get parameter" reply
MDT652S replies with a current value and the status of the requested item (operation code).
1
st
byte) STX: Start of Message
ASCII STX (02h)
2
nd-3rd
bytes) Result code.
These bytes indicate a result of the requested commands as follows,
OP code page OP code
STX
Hi Lo Hi Lo
ETX
1st 2
nd-3rd
4
th–5th
6
th
Result OP code page OP code Type Max value Current Value
STX
Hi Lo Hi Lo Hi Lo Hi Lo MSB LSB MSB LSB
ETX
1st 2
nd-3rd
4
th–5th
6
th
–7th 8th -9
th
10th -13th 14th -17th 18th
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00h: No Error.
01h: Unsupported operation with this monitor or unsupported operation under current condition. This result code from the monitor is encoded to ASCII characters. Ex.) The byte data 01h is encoded to ASCII character '0' and '1' (30h and 31h).
4
th–5th
bytes) OP code page: Operation code page. These bytes indicate a replying item's OP code page. This returned value from the monitor is encoded to ASCII characters. Ex.) The byte data 02h is encoded to ASCII character '0' and '2' (30h and 32h). Refer to the operation codes table.
6
th
–7thbytes) OP code: Operation code
These bytes indicate a replying item's OP code. This returned value from the monitor is encoded to ASCII characters. Refer to the operation code table. Ex.) The byte data 1Ah is encoded to ASCII character '1' and 'A' (31h and 41h).
8
th
-9thbytes) Type: Operation type code This returned value from the monitor is encoded to ASCII characters. Ex.) The byte data 01h is encoded to ASCII character '0' and '1' (30h and 31h).
00h: Set parameter 01h: Momentary
Like the AutoSetup function which automatically changes the parameter.
10
th
-13thbytes) Max. value: Maximum value which monitor can accept. (16bits) This returned value from the monitor is encoded to ASCII characters. Ex.) '0','1','2' and '3' means 0123h (291)
14
th
-17thbytes) Current Value: (16bits) This returned value from the monitor is encoded to ASCII characters. Ex.) '0','1','2' and '3' means 0123h (291)
18
th
byte) ETX: End of Message
ASCII ETX (03h)
5.3 Set parameter
Send this message to change monitor’s adjustment and so on. The controller requests a monitor to change value.
1
st
byte) STX: Start of Message
ASCII STX (02h)
2
nd-3rd
bytes) OP code page: Operation code page
OP code page OP code Set Value
STX
Hi Lo Hi Lo MSB LSB
ETX
1st 2
nd-3rd
4
th-5th
6
th-9th
10
th
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This OP code page data must be encoded to ASCII characters. Ex) The byte data 02h must be encoded to ASCII '0' and '2' (30h and 32h). Refer to the Operation code table.
4
th-5th
bytes) OP code: Operation code This OP code data must be encoded to ASCII characters. OP code 1Ah -> OP code (Hi) = ASCII '1' (31h) OP code (Lo) = ASCII 'A' (41h) Refer to the Operation code table.
6
th-9th
bytes) Set value
: (
16bit) This data must be encoded to ASCII characters. Ex.) 0123h -> 1
st
(MSB) = ASCII '0' (30h)
2
nd
= ASCII '1' (31h)
3
rd
= ASCII '2' (32h)
4
th
(LSB) = ASCII '3' (33h)
10
th
byte) ETX: End of Message ASCII ETX (03h)
5.4 "Set parameter" reply
The Monitor echoes back the parameter and status of the requested operation code. (If command is sent as “Broadcast” then no reply should be sent back.) 1
st
byte) STX: Start of Message
ASCII STX (02h)
2
nd-3rd
bytes) Result code ASCII '0''0' (30h, 30h): No Error ASCII '0''1' (30h, 31h): Unsupported operation with this monitor or unsupported operation under current condition.
4
th-5th
bytes) OP code page: Echoes back the Operation code page for confirmation.
Reply data from the monitor is encoded to ASCII characters. Ex.) OP code page 02h -> OP code page = ASCII '0' and '2' (30h and 32h) Refer to Operation code table.
6
th-7th
bytes) OP code: Echoes back the Operation code for confirmation.
Reply data from the monitor is encoded to ASCII characters. Ex.) OP code 1Ah -> OP code (Hi) = ASCII '1' (31h) OP code (Lo) = ASCII 'A' (41h) Refer to Operation code table
Result OP code page OP code Type Max value
Requested setting
Value
STX
Hi Lo Hi Lo Hi Lo Hi Lo MSB LSB MSB LSB
ETX
1st 2nd-3rd 4
th-5th
6
th-7th
8
th-9th
10th-13th 14th -17th 18
th
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8th-9thbytes) Type: Operation type code
ASCII '0''0' (30h, 30h): Set parameter ASCII '0''1' (30h, 31h): Momentary Like Auto Setup function, that automatically changes the parameter.
10
th
-13thbytes) Max. value: Maximum value that monitor can accept. (16bits) Reply data from the monitor is encoded to ASCII characters. Ex.) '0''1''2''3' means 0123h (291)
14
th
-17thbytes) Requested setting Value: Echoes back the parameter for confirmation. (16bits) Reply data from the monitor is encoded to ASCII characters. Ex.) '0''1''2''3' means 0123h (291)
18
th
byte) ETX: End of Message ASCII ETX (03h)
5.5 Commands
"Command message format" depends on each command
.
Some commands are shown with usage. Refer to
section 7 to 10.
5.5.1 Save Current Settings.
The controller requests for the monitor to store the adjusted value.
Send "OC"(30h, 43h) as Save current settings command.
Complete "Save Current setting" command packet as follows; (The destination “A” (monitor ID of 1) is only an example. It should be changed according to the target monitor ID)
ASCII: 01h-30h-41h-30h-41h-30h-34h-02h-30h-43h-03h-CHK-0Dh
SOH-'0'-'A'-'0'-'A'-'0'-'4'-STX-'0'-'C'-ETX-CHK- CR
The monitor replies the packet for confirmation as follows;
SOH-'0'-'0'-'A'-'B'-'0'-'6'-STX-'0'-'0'-'0'-'C'-ETX-CHK- CR
5.5.1a Save Current Settings Quick.
The controller requests for the monitor to store the adjusted value. This command supports only following items, in order to shorten execute time in monitor inside.
CONTRAST, BRIGHT, Color Temperature, IR Control, Inoformation OSD, H-Position, V-Position, Sharpness,
Black Level, Tint, Color, OSD Turn Off, Off Timer, OSD H-Position, OSD V-Position, Power On Delay, Gamma Selection, Tiling, Monitor ID, Clock, Clock Phase, Zoom, H-Resolution, V-Resolution.
Command code
STX
'0' 'C'
ETX
Command code
STX
'0' 'D'
ETX
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Send "OD"(30h, 44h) as Save current settings quick command.
Complete "Save Current setting" command packet as follows;
ASCII: 01h-30h-41h-30h-41h-30h-34h-02h-30h-44h-03h-CHK-0Dh
SOH-'0'-'A'-'0'-'A'-'0'-'4'-STX-'0'-'D'-ETX-CHK- CR
The monitor replies the packet for confirmation as follows;
SOH-'0'-'0'-'A'-'B'-'0'-'6'-STX-'0'-'0'-'0'-'D'-ETX-CHK- CR
5.5.2 Get Timing Report and Timing reply.
The controller requests the monitor to report the displayed image timing.
Send "07"(30h, 37h) as Get Timing Report command.
Complete "Get Timing Report" command packet as follows; (The destination “A” (monitor ID of 1) is only an example. It should be changed according to the target monitor ID)
ASCII: 01h-30h-41h-30h-41h-30h-34h-02h-30h-37h-03h-CHK-0Dh
SOH-'0'-'A'-'0'-'A'-'0'-'4'-STX-'0'-'7'-ETX-CHK- CR
The monitor replies status as the following format;
SS: Timing status byte Bit 7 = 1: Sync Frequency is out of range.
Bit 6 = 1: Unstable count Bit 5-2 Reserved (Don't care) Bit 1 1:Positive Horizontal sync polarity. 0:Negative Horizontal sync polarity. Bit 0 1:Positive Vertical sync polarity.
0:Negative Vertical sync polarity.
H Freq: Horizontal Frequency in unit 0.01kHz
V Freq: Vertical Frequency in unit 0.01Hz
Ex.) When H Freq is '1''2''A''9' (31h, 32h, 41h, 39h), it means 47.77kHz.
5.5.3 NULL Message
The NULL message returned from the monitor is used in the following cases;
A timeout error has occurred. (The default timeout is 10msec for command internal gap.)
The monitor receives an unsupported message type.
The monitor detects a packet BCC (Block Check Code) error.
Command code
STX
'0' '7'
ETX
Command SS H Freq. V Freq.
STX
'4' 'E' Hi Lo MSB LSB MSB LSB
ETX
Command code
STX
'B' 'E'
ETX
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To tell the controller that the monitor does not have any answer to give to the host (not ready or not expected)
Complete "NULL Message" command packet as follows; (The destination “A” (monitor ID of 1) is only an example. It should be changed according to the target monitor ID) 01h-30h-30h-41h-41h-30h-34h—02h-42h-45h-03h-CHK-0Dh SOH-'0'-'0'-'A'-'A'-'0'-'4'-STX-'B'-'E'-ETX-CHK- CR
6. Typical procedure example
The following is a sample of procedures to control the monitor, these are examples of "Get parameter",
"Set parameter" and "Save current settings".
6.1. How to change the “Brightness” setting.
Step 1. The controller requests the Monitor to reply with the current brightness setting and capability
to support this operation. (Get parameter)
Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'C'-'0'-'6' STX-'0'-'0'-'1'-'0'-ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion. If it is a broad cast command(only “set command” is available), then the ’*’(2Ah)should be applied. '0' (30h): Message sender is the controller 'C' (43h): Message is "Get parameter command" '0'-'6' (30h, 36h): Message length is 6 bytes
Message
STX (02h): Start of Message '0'-'0' (30h, 30h): Operation code page number is 0 '1'-'0' (31h, 30h): Operation code is 10h (in the OP code page 0) ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
Step 2. The monitor replies with current Brightness setting and capability to support this operation. (If command is sent as “Broadcast” then no reply should be sent back.)
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)) 'D' (44h): Message Type is "Get parameter reply" '1'-'2' (31h, 32h): Message length is 18 bytes
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'D'-'1'-'2' STX-'0'-'0'-'0'-'0'-'1'-'0'-'0'-'0'
-'0'-'0'-'6'-'4'-'0'-'0'-'3'-'2'-ETX
BCC CR
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Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Result code. No error '0'-'0' (30h, 30h): Operation code page number is 0 '1'-'0' (31h, 30h): Operation code is 10h (in the page 0) '0'-'0' (30h, 30h): This operation is "Set parameter" type '0'-'0'-'6'-'4' (30h, 30h, 36h, 34h): Brightness max value is 100(0064h) '0'-'0'-'3'-'2' (30h, 30h, 33h, 32h): Current Brightness setting is 50(0032h) as 50% ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
Step 3. The controller request the monitor to change the Brightness setting
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion. If it is a broad cast command(only “set command” is available), then the ’*’(2Ah)should be applied. '0' (30h): Message sender is the controller 'E' (45h): Message Type is "Set parameter command" '0'-'A' (30h, 41h): Message length is 10 bytes
Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Operation code page number is 0 '1'-'0' (31h, 30h): Operation code is 10h (in the page 0) '0'-'0'-'5'-'0' (30h, 30h, 35h, 30h): Set Brightness setting 80(0050h) as 80% ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
Step 4. The monitor replies with a message for confirmation. (If command is sent as “Broadcast” then no reply should be sent back.)
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)) 'F' (46h): Message Type is "Set parameter reply" '1'-'2' (31h, 32h): Message length is 18 bytes
Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'E'-'0'-'A' STX-'0'-'0'-'1'-'0'-'0'-'0'-'5'-'0'-ETX BCC CR
Header Message Check code Delimiter
SOH-'0'-'0'- 'A' -'F'-'1'-'2' STX-'0'-'0'-'0'-'0'-'1'-'0'—'0'-'0'-'0'
-'0'-'6'-'4'-'0'-'0'-'5'-'0'-ETX
BCC CR
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Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Result code. No error '0'-'0' (30h, 30h): Operation code page number is 0 '1'-'0' (31h, 30h): Operation code is 10h (in the page 0) '0'-'0' (30h, 30h): This operation is "Set parameter" type '0'-'0'-'6'-'4' (30h, 30h, 36h, 34h): Brightness max value is 100(0064h) '0'-'0'-'5'-'0' (30h, 30h, 35h, 30h): Received a Brightness setting was 80(0050h) as 80% ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
 Repeat Step 1 and Step 2, if you need to check the Brightness setting. (Recommended)
Step 5. Request the monitor to store the Brightness setting. (Save Current Settings Command)
Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'4' STX-'0-'C'-ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion. If it is a broad cast command(only “set command” is available), then the ’*’(2Ah)should be applied. '0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'4' (30h, 34h): Message length is 4 bytes
Message
STX (02h): Start of Message '0'-'C' (30h, 43h): Command code is 0Ch as "Save current settings" ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
6.2 How to read the measur em ent v alue o f th e built -in te mpe r atu re s ens o rs .
MDT652S has two built-in temperature sensors. The controller can monitor inside temperatures by using those sensors through RS-232C.
The following shows the procedure for reading the temperatures from the sensors.
Step 1. Select a temperature sensor which you want to read.
Header
SOH (01h): Start of Header '0' (30h): Reserved 'A' (41h): Monitor ID
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion.
'0' (30h): Message sender is the controller
Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'E'-'0'-'A' STX-'0'-'2'-'7'-'8'-'0'-'0'-'0'-'1'-ETX BCC CR
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'E' (45h): Message Type is "Set parameter command" '0'-'A' (30h, 41h): Message length is 10 bytes
Message
STX (02h): Start of Message
'0'-'2' (30h, 32h): Operation code page number is 02h '7'-'8' (37h, 38h): Operation code is 78h (on page 2) '0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Select the temperature sensor #1 (01h).
00h: No meaning 01h: Sensor #1 02h: Sensor #2
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
Step 2. The monitor replies for confirmation.
Header
SOH (01h): Start of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah))
'F' (46h): Message Type is "Set parameter reply" '1'-'2' (30h, 32h): Message length is 18 bytes
Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Result code. No error '0'-'2' (30h, 32h): Operation code page number is 0
02h '7'-'8' (37h, 38h): Operation code is 78h (in the page 2) '0'-'0' (30h, 30h): This operation is "Set parameter" type '0'-'0'-'0'-'2' (30h, 30h, 30h, 32h): Number of temperature sensors 2 (0002h). '0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): temperature sensor is #1. ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
Step 3 The controller requests the monitor to send the temperature from the selected sensor.
Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'C'-'0'-'6' STX-'0'-'2'-'7'-'9'-ETX BCC CR
Header
SOH (01h): Start of Header '0' (30h): Reserved
'A' (41h): Monitor ID
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'F'-'1'-'2' STX-'0'-'0'-'0'-'2'-'7'-'8'-'0'-'0'-'0'-'0'
-'0'-'2'-'0'-'0'-'0'-'1'-ETX
BCC CR
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If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion.
'0' (30h): Message sender is the controller 'C' (43h): Message Type is "Get parameter " '0'-'6' (30h, 36h): Message length is 6 bytes
Message
STX (02h): Start of Message
'0'-'2' (30h, 32h): Operation code page number is 02h. '7'-'9' (37h, 39h): Operation code is 79h (in the page 2) ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
Step 4. The monitor replies a temperature of selected sensor.
Header
SOH (01h): Start of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)) 'D' (44h): Message Type is "Get parameter reply" '1'-'2' (31h, 32h): Message length is 18 bytes
Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Result code. No error '0'-'2' (30h, 32h): Operation code page number is 2 '7'-'9' (37h, 39h): Operation code is 79h (in the page 2) '0'-'0' (30h, 30h): This operation is "Set parameter" type '0'-'0'-'F'-'F' (30h, 30h, 46h, 46h): Maximum value. '0'-'0'-'3'-'2' (30h, 30h, 33h, 32h): The temperature is 50 degrees Celsius.
Readout value is 2's complement.
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'D'-'1'-'2' STX-'0'-'0'-'0'-'2'-'7'-'9'-'0'-'0'
-'0'-'0'-'F'-'F'-'0'-'0'-'3'-'2'-ETX
BCC CR
Readout value
Temperature [Celsius]
Binary Hexadecimal +125.0 0000 0000 0111 1101 007Dh + 25.0 0000 0000 0001 1001 0019h + 1.0 0000 0000 0000 0001 0001h 0 0000 0000 0000 0000 0000h
- 1.0 1111 1111 1111 1111 FFFFh
- 25.0 1111 1111 1110 0111 FFE7h
- 55.0 1111 1111 1100 1001 FFC9h
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7. Power control procedure
7.1 Power status read
1) The controller requests the monitor to reply a current power status. Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'6' STX-'0'-'1'-'D'-'6'-ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion.
'0' (30h): Message sender is the controller 'A' (41h): Message Type is "Command" '0'-'6' (30h, 36h): Message length is 6 bytes
Message
STX (02h): Start of Message
'0'-'1'-'D'-'6': Get power status command ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet.
2) The monitor returns with the current power status.
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah))
'B' (42h): Message Type is "Command reply" '1'-'2' (31h, 32h): Message length is 18 bytes
Message
STX(02h):Start of Message '0'-'2' (30h, 32h): Reserved data '0'-'0' (30h, 30h): Result code
00: No Error
01: Unsupported 'D'-'6'(44h, 36h): Display power mode code '0'-'0' (30h, 30h): Parameter type code is "Set parameter" '0'-'0'-'0'-'4' (30h, 30h, 30h, 34h): Power mode is 4 types '0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Current power mode
<Status>
0001: ON 0002: Stand
-by (power save) 0003: Suspend (power save) 0004: Sleep/Stand-by (power save), OFF (same as IR power off)
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-'1'-'2' STX-'0'-'2'-'0'-'0'-'D'-'6'-'0'-'0'-'0'
-'0'-'0'-'4'-'0'-'0'-'0'-'1'-ETX
BCC CR
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Delimiter
CR (0Dh): End of packet
7.2 Power control
1) The controller requests the monitor to control monitor power.
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion. If it is a broad cast command(only “set command” is available), then the ’*’(2Ah)should be applied.
'0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'C (30h, 43h): Message length is 12 bytes
Message
STX (02h): Start of Message 'C'-'2’,'0'-'3'-'D'-'6' (43h, 32h, 30h, 33h, 44h, 36h): power control command '0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Power mode
0001: ON 0002, 0003: Do not set. 0004: Sleep/Standby (power save),OFF (same as power off by IR)
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet.
2) The monitor replies a data for confirmation.(If command is sent as
“
Broadcast” then no reply
should be sent back.).
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-'0'-'E' STX-'0'-'0'-'C'-'2'-'0'-'3'-'D'-'6'-
'0'-'0'-'0'-'1'-ETX
BCC CR
Header
SOH (01h): Start Of Header
'0' (30h): Reserved
'0' (30h): Message sender is the controller
'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)).
'B' (42h): Message type is "Command reply" 'N'-'N': Message length.
Note.) The maximum data length that can be written to the monitor at a time is 32bytes. Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h).
Message
STX (02h): Start of Message '0'-'0' (30h, 30h): Result code. No error
'C'-'2’,'0'-'3'-'D'-'6' (43h, 32h, 30h, 33h, 44h, 36h): power control reply command
 The monitor replies same as power control command to the controller.
'0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Power mode
0001: ON 0002, 0003: Do not set.
Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'C' STX-'C'-'2'-'0'-'3'-'D'-'6'-
'0'-'0'-'0'-'1'-ETX
BCC CR
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0004: OFF (same as the power off by IR)
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet.
8. Asset Data read and write
8.1 Asset Data Read Request and reply
This command is used in order to read Asset Data.
1) The controller requests the monitor to reply with Asset data. Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'A' STX-'C'-'0'-'0'-'B'-'0'-'0'-'2'-'0'-ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion.
'0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'A' (30h, 41h): Message length is 10 bytes
Message
STX (02h): Start of Message 'C'-'0'-'0'-'B' (43h, 30h, 30, 42h): Asset read request command '0'-'0' (30h, 30h): Offset data from top of the Asset data.
At first set 00h: Read data from the top of Asset data area.
'2'-'0' (32h, 30h): Read out data length is 32bytes.
Maximum readout length is 32bytes at a time.
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies Asset data to the controller.
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-N-N STX-'C'-'1'-'0'-'B'-
Data(0)-Data(1)---Data(N)-ETX
BCC CR
Header
SOH (01h): Start of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)).
'B' (42h): Message type is "Command reply" N-N: Message length
Ex.) The byte data 20h is encoded to ASCII characters '2' and '0' (32h and 30h). Note.) This length is includes STX and ETX.
Message
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STX (02h): Start of Message 'C'-'1'-'0'-'B' (43h, 31h, 30, 42h): Asset read reply command Data(0) – Data(N): Retuned Asset data.
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
8.2 Asset Data write
This command is used in order to write Asset Data.
1) The controller requests the monitor to write Asset data.
Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-N-N STX-'C'-'0'-'0'-'E'-'0'-'0'-
Data(0)-Data(1)---Data(N)-ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion. If it is a broad cast command(only “set command” is available), then the ’*’(2Ah)should be applied.
'0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" N-N: Message length.
Note.) The maximum data length that can be written to the monitor at a time is 32bytes. Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h).
Message
STX (02h): Start of Message 'C'-'0'-'0'-'E' (43h, 30h, 30, 45h): Asset Data writes command '0'-'0': Offset address from top of Asset data.
00h : Write data from top of the Asset data area.
Data0 - DataN: Asset data. The data must be ASCII characters strings. ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies a data for confirmation.(If command is sent as
“
Broadcast” then no reply
should be sent back.).
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-N-N STX-'0'-'0'-'C'-'0'-'0'-'E'-'0'-'0'-
Data(0)-Data(1)---Data(N)-ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)). 'B' (42h): Message type is "Command reply" N-N: Message length.
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Note.) The maximum data length that can be written to the monitor at a time is 32bytes.
Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (34h and 30h).
Message
STX (02h): Start of Message '0'-'0': Result code. No error 'C'-'0'-'0'-'E' (43h, 30h, 30, 45h): Asset Data write command '0'-'0': Offset address from top of Asset data.
00h : Write data into from top of the Asset data area.
Data(0) –- Data(N): Asset data. The data must be ASCII characters strings.
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
9. Date & Time read and write
9.1 Date & Time Read
This command is used in order to read the setting of Date & Time.
1) The controller requests the monitor to reply with the Date & Time. Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'6' STX-'C'-'2'-'1'-'1'-ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion.
'0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'6'(30h, 36h): length.
Message
STX (02h): Start of Message 'C'-'2'-'1'-'1' (43h, 32h, 31h, 31h): Date & time read request command ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies Date & Time to the controller. Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-'1'-'4' STX-'C'-'3'-'1'-'1'-YY-MM-DD-WW-HH-MM-DS-ETX BCC CR
Header
SOH (01h): Start of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)).
'B' (42h): Message type is "Command reply"
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'1'-'4'(31h, 34h): Message length
Message
STX (02h): Start of Message 'C'-'3'-'1'-'1' (43h, 33h, 31h, 31h): Date & Time read reply command 'YY'-'MM'-'DD'-'WW'-'HH'-'MN'-'DS': Date & Time data
YY: Year (offset 2000) '0'-'0'(30h, 30h): 2000 |
'6'-'3'(36h, 33h): 2099 (99 = 63h)
MM: Month
'0'-'1'(30h, 31h): January | '0'-'C'(30h, 43h): December
DD: Day
'0'-'1'(30h, 31h): 1 | '1'-'E'(31h, 45h): 30(=1Eh) '1'-'F'(31h, 46h): 31(=1Fh)
WW: weekdays
'0'-'0'(30h, 30h): Sunday '0'-'1'(30h, 31h): Monday '0'-'2'(30h, 32h): Tuesday '0'-'3'(30h, 33h): Wednesday '0'-'4'(30h, 34h): Thursday '0'-'5'(30h, 35h): Friday '0'-'6'(30h, 36h): Saturday
HH: Hours
'0'-'0'(30h, 30h): 0 | '1'-'7'(31h, 37h): 23 (=17h)
MN: Minutes
'0'-'0'(30h, 30h): 0 | '3'-'B' (33h, 42h): 59 (=3Bh)
DS: Daylight saving (Summer time)
'0'-'0'(30h, 30h): NO '0'-'1'(30hm 31h): YES
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
9.2 Date & Time Write
This command is used in order to write the setting of the Date & Time.
1) The controller requests the monitor to write Date & Time. Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'1'-'4' STX-'C'-'2'-'1'-'2'-YY-MM-DD-WW-HH-MN-DS-ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved
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'A' (41h): Monitor ID
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion. If it is a broad cast command(only “set command” is available), then the ’*’(2Ah)should be applied.
'0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '1'-'4'(31h, 34h): Message length.
Message
STX (02h): Start of Message 'C'-'2'-'1'-'2' (43h, 32h, 31h, 32h): Date & Time write command 'YY'-'MM'-'DD'-'WW'-'HH'-'MN'-'DS': Date & Time data
YY: Year (offset 2000)
'0'-'0'(30h, 30h): 2000
|
'6'-'3'(36h, 33h): 2099 (99 = 63h)
MM: Month
'0'-'1'(30h, 31h): January | '0'-'C'(30h, 43h): December
DD: Day
'0'-'1'(30h, 31h): 1 | '1'-'E'(31h, 45h): 30(=1Eh)
WW: weekdays
This parameter if no use, since the week is automatically calculated by Monitor based on the date data.
HH: Hours
'0'-'0'(30h, 30h): 0 | '1'-'7'(31h, 37h): 23 (=17h)
MN: Minutes
'0'-'0'(30h, 30h): 0 | '3'-'B' (33h, 42h): 59 (=3Bh)
DS: Daylight saving (Summer time)
'0'-'0'(30h, 30h): NO '0'-'1'(30h, 30h): YES
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies a data for confirmation.(If command is sent as
“
Broadcast” then no reply
should be sent back.).
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-'1'-'6' STX-'C'-'3'-'1'-'2'-ST-YY-MM-DD-WW-HH-MN-DS-ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)).
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'B' (42h): Message type is "Command reply" '1'-'6'(31h, 36h): Message length.
Message
STX (02h): Start of Message 'C'-'3'-'1'-'2' (43h, 33h, 31h, 32h): Date & Time write reply command ST: Date & Time Status command
'0'-'0'(30h, 30h):No error '0'-'1'(30h, 31h):Error
'YY'-'MM'-'DD'-'WW'-'HH'-'MN'-'DS': Date & Time data
YY: Year (offset 2000) '0'-'0'(30h, 30h): 2000 |
'6'-'3'(36h, 33h): 2099 (99 = 63h)
MM: Month
'0'-'1'(30h, 31h): January | '0'-'C'(30h, 43h): December
DD: Day
'0'-'1'(30h, 31h): 1 | '1'-'E'(31h, 45h): 30(=1Eh) '1'-'F'(31h, 46h): 31(=1Fh)
WW: weekdays
This parameter if no use, since the week is automatically calculated by Monitor based on the date data.
HH: Hours
'0'-'0'(30h, 30h): 0 | '1'-'7'(31h, 37h): 23 (=17h)
MN: Minutes
'0'-'0'(30h, 30h): 0 | '3'-'B' (33h, 42h): 59 (=3Bh)
DS: Daylight saving (Summer time)
'0'-'0'(30h, 30h): NO '0'-'1'(30h, 31h): YES
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
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10.Schedule read and write
10.1 Schedule Read
This command is used in order to read the setting of the Schedule.
1) The controller requests the monitor to read Schedule Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'8' STX-'C'-'2'-'1'-'3'-PG-ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion.
'0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'8'(30h, 38h): Message length.
Message
STX (02h): Start of Message 'C'-'2'-'1'-'3' (43h, 32h, 31h, 33h): Schedule read request command
PG: Program No.
 The data must be ASCII characters strings.
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies Schedule to the controller. Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-'1'-'6' STX-'C'-'3'-'1'-'3'-PG-ON HOURS-ON MIN-OFF HOURS-OFF
Min-INPUT-WD-FL-ETX
BCC CR
Header
SOH (01h): Start of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)).
'B' (42h): Message type is "Command reply" '1'-'6'(31h, 36h): Message length
Message
STX (02h): Start of Message 'C'-'3'-'1'-'3' (43h, 33h, 31h, 33h): Schedule read reply command PG-ON HOURS-ON MIN-OFF HOURS-OFF MIN-INPUT-WD-FL: Schedule data
PG: Program No.
'0'-'0'(30h, 30h): Program No.1 | '0'-'6'(30h, 36h): Program No.7
ON_HOUR: Turn on time (hour)
'0'-'0'(30h, 30h): 00 | '1'-'7'(31h, 37h): 23 (=17h) '1'-'8'(31h, 38h): ON timer isn't set.
ON_MIN: Turn on time (minute)
'0'-'0'(30h, 30h): 0 |
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'3'-'B'(33h, 42h): 59 '3'-'C'(33h, 43h): On timer isn't set.
OFF_HOUR: Turn off time (hour)
'0'-'0'(30h, 30h): 00 | '1'-'7'(31h, 37h): 23 (=17h) '1'-'8'(31h, 38h): Off timer isn't set.
OFF_MIN: Turn off time (minute)
'0'-'0'(30h, 30h): 0 | '3'-'B'(33h, 42h): 59 (=3Bh) '3'-'C'(33h, 43h): Off timer isn’t set.
INPUT: Timer input
'0'-'0'(30h, 30h): RGB1(HDMI) '0'-'1'(30h, 31h): RGB2(DVI-D) '0'-'2'(30h, 32h): RGB3(D-SUB) '0'-'3'(30h, 33h): RGB4(BNC) '0'-'4'(30h, 34h): DVD/HD '0'-'5'(30h, 35h): VIDEO '0'-'6'(30h, 36h): VIDEO(S)
'0'-'7'(30h, 37h): It is o
perates by last memory input
'0'-'8'(30h, 38h): RGB5(CAT5, option) '0'-'9'(30h, 39h): RGB6(DisplayPort)
WD: Week setting
bit 0: Monday bit 1: Tuesday bit 2: Wednesday bit 3: Thursday bit 4: Friday bit 5: Saturday bit 6: Sunday
EX. '0'-'1'(30h, 31h): Monday '0'-'4'(30h, 34h): Wednesday '0'-'F'(30h, 46h): Monday, Tuesday, Wednesday and Thursday '7'-'F'(37h, 46h): Monday to Sunday
FL: Option
bit 0: Everyday bit 1: Every week bit 2: Schedule Disable/Enable
* When bit0 and bit1 are '1', it behaves as Everyday.
EX.
FL setting Schedule Everyweek Everyday Schedule behavior '0'-'0'(30h, 30h) Schedule Disable '0'-'1'(30h, 31h) O Schedule Disable '0'-'2'(30h, 32h) O Schedule Disable '0'-'3'(30h, 33h) O O Schedule Disable '0'-'4'(30h, 34h) O Once *Follow WD (Week setting) '0'-'5'(30h, 35h) O O Everyday '0'-'6'(30h, 36h) O O Everyweek *Follow WD (Week setting) '0'-'7'(30h, 37h) O O O Everyday
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
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10.2 Schedule Write
This command is used in order to write the setting of the Schedule.
1) The controller requests the monitor to write Schedule
.
Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'1'-'6' STX-'C'-'2'-'1'-'4'-PG-ON HOURS-ON MIN-OFF
HOURS-OFF Min-INPUT-WD-FL-ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion. If it is a broad cast command(only “set command” is available), then the ’*’(2Ah)should be applied.
'0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '1'-'6'(31h, 36h): Message length.
Message
STX (02h): Start of Message 'C'-'2'-'1'-'4' (43h, 32h, 31h, 34h): Schedule writes command PG-ON HOURS-ON MIN-OFF HOURS-OFF Min-INPUT-WD-FL: Schedule data
PG: Program No.
'0'-'0'(30h, 30h): Program No.1 | '0'-'6'(30h, 36h): Program No.7
ON_HOUR: Turn on time (hour)
'0'-'0'(30h, 30h): 00 | '1'-'7'(31h, 37h): 23 (=17h) '1'-'8'(31h, 38h): ON timer isn't set.
ON_MIN: Turn on time (minute)
'0'-'0'(30h, 30h): 0 | '3'-'B'(33h, 42h): 59 '3'-'C'(33h, 43h): On timer isn’t set.
OFF_HOUR: Turn off time (hour)
'0'-'0'(30h, 30h): 00 | '1'-'7'(31h, 37h): 23 (=17h) '1'-'8'(31h, 38h): Off timer isn't set.
OFF_MIN: Turn off time (minute)
'0'-'0'(30h, 30h):0min | '3'-'B'(33h, 42h):59 (=3Bh) '3'-'C'(33h, 43h): Off timer isn’t set.
INPUT: Timer input
'0'-'0'(30h, 30h): RGB1(HDMI) '0'-'1'(30h, 31h): RGB2(DVI-D) '0'-'2'(30h, 32h): RGB3(D-SUB) '0'-'3'(30h, 33h): RGB4(BNC) '0'-'4'(30h, 34h): DVD/HD '0'-'5'(30h, 35h): VIDEO '0'-'6'(30h, 36h): VIDEO(S)
'0'-'7'(30h, 37h): It is o
perates by last memory input
'0'-'8'(30h, 38h): RGB5(CAT5, Option) '0'-'9'(30h, 39h): RGB6(DisplayPort)
WD: Week setting
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bit 0: Monday bit 1: Tuesday bit 2: Wednesday bit 3: Thursday bit 4: Friday bit 5: Saturday bit 6: Sunday
EX. '0'-'1'(30h, 31h): Monday '0'-'4'(30h, 34h): Wednesday '0'-'F'(30h, 46h): Monday, Tuesday, Wednesday and Thursday '7'-'F'(37h, 46h): Monday to Sunday
FL: Option
bit 0: Everyday bit 1: Every week bit 2: Schedule Disable/Enable
* When bit0 and bit1 are '1', it behaves as Everyday.
EX.
FL setting Schedule Everyweek Everyday Schedule behavior '0'-'0'(30h, 30h) Schedule Disable '0'-'1'(30h, 31h) O Schedule Disable '0'-'2'(30h, 32h) O Schedule Disable '0'-'3'(30h, 33h) O O Schedule Disable '0'-'4'(30h, 34h) O Once *Follow WD (Week setting) '0'-'5'(30h, 35h) O O Everyday '0'-'6'(30h, 36h) O O Everyweek *Follow WD (Week setting) '0'-'7'(30h, 37h) O O O Everyday
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies a data for confirmation.(If command is sent as
“
Broadcast” then no reply
should be sent back.).
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-'1'-'8' STX-'C'-'3'-'1'-'4'-ST-PG-ON HOURS-ON
MIN-OFF HOURS-OFF Min-NPUT-WD-FL-ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)).
'B' (42h): Message type is "Command reply" '1'-'8'(31h, 38h): Message length.
Message
STX (02h): Start of Message 'C'-'3'-'1'-'4' (43h, 33h, 31h, 34h): Schedule writes reply command ST: Schedule Status command
0(30h):No error 1(31h):Error
PG-ON HOURS-ON MIN-OFF HOURS-OFF Min-NPUT-WD-FL: Schedule data
PG: Program No.
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'0'-'0'(30h, 30h): Program No.1 | '0'-'6'(30h, 36h): Program No.7
ON_HOUR: Turn on time (hour)
'0'-'0'(30h, 30h): 00 | '1'-'7'(31h, 37h): 23 (=17h) '1'-'8'(31h, 38h): ON timer isn't set.
ON_MIN: Turn on time (minute)
'0'-'0'(30h, 30h): 0 | '3'-'B'(33h, 42h): 59 '3'-'C'(33h, 43h): On timer isn’t set.
OFF_HOUR: Turn off time (hour)
'0'-'0'(30h, 30h): 00 | '1'-'7'(31h, 37h): 23 (=17h) '1'-'8'(31h, 38h): Off timer isn't set.
OFF_MIN: Turn off time (minute)
'0'-'0'(30h, 30h): 0 | '3'-'B'(33h, 42h): 59 (=3Bh) '3'-'C'(33h, 43h): Off timer isn’t set.
INPUT: Timer input
'0'-'0'(30h, 30h): RGB1(HDMI) '0'-'1'(30h, 31h): RGB2(DVI-D) '0'-'2'(30h, 32h): RGB3(D-SUB) '0'-'3'(30h, 33h): RGB4(BNC) '0'-'4'(30h, 34h): DVD/HD '0'-'5'(30h, 35h): VIDEO '0'-'6'(30h, 36h): VIDEO(S)
'0'-'7'(30h, 37h): It is o
perates by last memory input
'0'-'8'(30h, 38h): RGB5(CAT5, Option) '0'-'9'(30h, 39h): RGB6(DisplayPort)
WD: Week setting
bit 0: Monday bit 1: Tuesday bit 2: Wednesday bit 3: Thursday bit 4: Friday bit 5: Saturday bit 6: Sunday
EX. '0'-'1'(30h, 31h): Monday '0'-'4'(30h, 34h): Wednesday '0'-'F'(30h, 46h): Monday, Tuesday, Wednesday and Thursday '7'-'F'(37h, 46h): Monday to Sunday
FL: Option
bit 0: Everyday bit 1: Every week bit 2: Schedule Disable/Enable
* When bit0 and bit1 are '1', it behaves as Everyday.
EX.
FL setting Schedule Everyweek Everyday Schedule behavior '0'-'0'(30h, 30h) Schedule Disable '0'-'1'(30h, 31h) O Schedule Disable '0'-'2'(30h, 32h) O Schedule Disable '0'-'3'(30h, 33h) O O Schedule Disable
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'0'-'4'(30h, 34h) O Once *Follow WD (Week setting) '0'-'5'(30h, 35h) O O Everyday '0'-'6'(30h, 36h) O O Everyweek *Follow WD (Week setting) '0'-'7'(30h, 37h) O O O Everyday
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
11. Self diagnosis
11.1 Self-diagnosis status read
This command is used in order to read the Self-diagnosis status.
1) The controller requests the monitor to read Self-diagnosis status. Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'4' STX-'B'-'1'-ETX BCC CR
Header
SOH (01h): Start of Header '0' (30h): Reserved 'A' (41h): Monitor ID If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah)
which is corresponding to monitor ID from No1 to No.26 should be set to this portion.
'0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'4'(30h, 34h): Message length.
Message
STX (02h): Start of Message 'B'-'1' (42h, 31h): Self-diagnosis command ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies a result of the self-diagnosis.
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-N-N STX-'A'-'1'-
ST(0)-ST(1) --------ST(n)-ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)).
'B' (42h): Message type is "Command reply " N-N: Message length.
Note.) The maximum data length that can be written to the monitor at a time is 32bytes. Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (34h and 30h).
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Message
STX (02h): Start of Message 'A'-'1' (41h, 31h): Application Test Report reply command ST: Result of self-tests
00:Normal 70:Analog 3.3V abnormality 71:Analog 12V abnormality 72:Analog 5V abnormality 73:Audio amplifier +12V abnormality 78:Panel 12V abnormality 80:Cooling fan-1 abnormality 81:Cooling fan-2 abnormality
The byte data 70 is encoded as ASCII characters '7' and '0' (37h and 30h).
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
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12. Serial No. & Model Name Read
12.1 Serial No. Read
This command is used in order to read a serial No.
1) The controller requests the monitor to read a serial No.
Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'6' STX-'C'-'2'-'1'-'6'-ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monit
or ID If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion.
'0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'6'(30h, 36h): Message length.
Message
STX (02h): Start of Message
'C'-'2'-'1'-'6' (43h, 32h, 31h, 36h): Serial No. command
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies a data for confirmation.(If command is sent as
“
Broadcast” then no reply
should be sent back.).
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-N-N STX-'C'-'3'-'1'-'6'-
Data(0)-Data(1)---Data(n)-ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)). 'B' (42h): Message type is "Command reply " N-N: Message length.
Note.) The maximum data length that can be written to the monitor at a time is 32bytes.
Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h).
Message
STX (02h): Start of Message 'C'-'3'-'1'-'6' (41h, 33h, 31h, 36h): Serial No. reply command Data(0)-Data(1)----Data(n):Serial Number
The data must be ASCII characters strings.
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
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12.2 Model Name Read
This command is used in order to read the Model Name.
1) The controller requests the monitor to read Model Name. Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'6' STX-'C'-'2'-'1'-'7'-ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this portion.
'0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'6'(30h, 36h): Message length.
Message
STX (02h): Start of Message
'C'-'2'-'1'-'7' (43h, 32h,31h,37h): Model Name command
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies a data for confirmation.(If command is sent as “Broadcast” then no reply
should be sent back.)
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-N-N STX-'C'-'3'-'1'-'7'-Data(0) -Data(1)—---
-Data(n)-ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)).
'B' (42h): Message type is "Command reply " N-N: Message length.
Note.) The maximum data length that can be written to the monitor at a time is
32bytes.
Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h).
Message
STX (02h): Start of Message 'C'-'3'-'1'-'7' (41h, 33h, 31h, 37h): Model Name reply Command Data(0) -Data(1)----Data(n):Model name
The data must be ASCII characters strings.
ETX (03h): End of Message
Check code
BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
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13. Control Commands for Auto Brightness function
MDT652S supports the Auto Brightness function via RS232c control in order to share a sensor detected
result in a monitor with multiple monitors.
We have 2 modes of control. Stand alone mode: A monitor can control the others as Master(Primary). Remote control mode: All of monitors are controlled by Host PC as slave(Secondary).
13.1 Auto Brightness Parameter Read
Read parameters about AUTO BRIGHTNESS from A monitor to Host PC.
1) Read Request from PC to Monitor.
Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'6' STX-'C'-'2'-'2'-'1'–ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this
portion. '0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'6'(30h, 36h): Message length.
Message
STX (02h): Start of Message 'C' -'2' -'2' -'1' (43h,32h,32h,31h): Auto Brightness Parameter Read command ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) Reply from Monitor to PC.
The monitor replies the packet for confirmation as follows;
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-'0' -'A' STX-'C'-'3'-'2'-'1'-[RES]-[RES]-[VAL_H]
-[VAL_L]–ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID 'B' (42h): Message type is "Command reply " '0' -'A' (30h, 41h): Message length.
Message
STX (02h): Start of Message 'C'-'3'-'2' -'1' (41h, 33h, 32h,31h): Auto Brightness Parameter Read reply Command
RES: Result code('0'(30h)-'0'(30h):Normal,
、
'0'(30h)-'1'(31h):Abnormal)
VAL: Auto Brightness setting parameter
bit0: LIGHT FROM BACK (1:Yes,0:No) bit1: BACK WALL (1:Near,0:Far) bit2: FRONT SENSOR (1:On,0:Off) bit3: BACK SENSOR (1:On,0:Off) bit4:Saturation(1:On,0:Off) bit5:Video Detect(1:On,0:Off)
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bit6-7:Not used VAL_H: ASCII code of bit4-7of data VAL_L: ASCII code of bit0-3 of data
Example) If Bit0 and 1 =1 and the other bits =0, (00000011)
VAL_H='0'(0x30) VAL_L='3'(0x33)
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
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13.2 Auto Brightness Parameter Write
Send AutoBrightness Parameters from Host( PC or Primary Monitor) to Slave (Secondary) Monitors.
1) Write Parameters from PC to Monitor.
Header Message Check code Delimiter
SOH-'0'-'*'-'0'-'A'-'0'-'8' STX-'C'-'2'-'2'-'2'–[VAL
_H]-[VAL_L]-ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '*' (2Ah): Monitor ID
(Use ‘*’ as “ALL” for Broadcasting of parameter) '0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'8'(30h, 38h): Message length.
Message
STX (02h): Start of Message 'C' -'2' -'2' -'2' (43h,32h,32h,32h): Auto Brightness Parameter Write command VAL: AutoBrightness setting parameter
bit0: LIGHT FROM BACK (1:Yes,0:No) bit1: BACK WALL (1:Near,0:Far) bit2: FRONT SENSOR (1:On,0:Off) bit3: BACK SENSOR (1:On,0:Off) bit4:Saturation(1:On,0:Off) bit5:Video Detect(1:On,0:Off)
bit6-7:Not used VAL_H: ASCII code of bit4-7of data VAL_L: ASCII code of bit0-3 of data
Example) If Bit0 and 1 =1 and the other bits =0, (00000011)
VAL_H='0'(0x30) VAL_L='3'(0x33) ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) Reply from Monitor to PC.
Basically, No need reply because it is broadcasting request.
[only for reference if the write command is done with certain destination ID]
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-'0' -'A' STX-'C'-'3'-'2'-'2'-[RES]-[RES]-[VAL_H]
-[VAL_L]–ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID 'B' (42h): Message type is "Command reply " '0' -'A' (30h, 41h): Message length.
Message
STX (02h): Start of Message 'C'-'3'-'2' -'2' (41h, 33h, 32h,32h): Auto Brightness Parameter Write reply Command
RES: Result code('0'(30h)-'0'(30h):Normal,
、
'0'(30h)-'1'(31h):Abnormal) VAL_H-VAL_L: AutoBrightness setting parameter ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
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Delimiter
CR (0Dh): End of packet
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13.3 Auto Brightness Sensor Read
Read light sensor detected data from Monitor to Host PC.
1) Read Request from PC to Monitor. Header Message Check code Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'6' STX-'C'-'2'-'2'-'3'–ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah) which is corresponding to monitor ID from No1 to No.26 should be set to this
portion. '0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'6'(30h, 36h): Message length.
Message
STX (02h): Start of Message 'C' -'2' -'2' -'3' (43h,32h,32h,33h): Auto Brightness Sensor Read command ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) Reply from Monitor to PC. The monitor replies sensed data of light sensor as follows;
Note: If AutoBrightness=Off then retun Null Message.
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-'1' -'4' STX-'C' -'3' -'2' -'3' -[RES] -[RES]
-[FVAL_HH] -[FVAL_HL] -[FVAL_LH] -
[
FVAL_LL]
-[BVAL_HH] -[BVAL_HL] -[BVAL_LH] -
[
BVAL_LL]
-[APL_HH] -[APL_HL] -[APL_LH] -[APL_LL] –ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID 'B' (42h): Message type is "Command reply " '1' -'4' (31h, 34h): Message length.
Message
STX (02h): Start of Message 'C'-'3'-'2' -'3' (41h, 33h, 32h,33h): Auto Brightness Sensor Read Reply Command
RES: Result code('0'(30h)-'0'(30h):Normal,
、
'0'(30h)-'1'(31h):Abnormal) FVAL_HH:Front Sensor Detected Data(High High byte)( Maximum='F'(0x46)) FVAL_HL:Front Sensor Detected Data(High Low byte) ( Maximum='F'(0x46)) FVAL_LH:Front Sensor Detected Data(Low High byte) ( Maximum='F'(0x46)) FVAL_LL:Front Sensor Detected Data(Low Low byte) ( Maximum='F'(0x46)) BVAL_HH:Back Sensor Detected Data(High High byte) ( Maximum='F'(0x46)) BVAL_HL:Back Sensor Detected Data(High Low byte) ( Maximum='F'(0x46)) BVAL_LH:Back Sensor Detected Data(Low High byte) ( Maximum='F'(0x46)) BVAL_LL:Back Sensor Detected Data(Low Low byte) ( Maximum='F'(0x46)) APL_HH:APL data(High High byte) ( Maximum='F'(0x46)) APL_HL:APL data(High Low byte) ( Maximum='F'(0x46)) APL_LH:APL data(LowHigh byte) ( Maximum='F'(0x46)) APL_LL:APL data(Low Low byte) ( Maximum='F'(0x46)) ETX (03h): End of Message
Check code
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BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
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13.4 Auto Brightness Sensor Write
Broadcast light sensor data from Host(PC or Primary Monitor) to Secondary Monitors.
1) Write Parameters from PC to Monitors.
Header Message Check code Delimiter
SOH-'0'-'*'-'0'-'A'-'1'-'2' STX-'C'-'2'-'2'-'4'–[FVAL_HH]
-[FVAL_HL]- [FVAL_LH] -[FVAL_LL] ­[BVAL_HH] -[BVAL_HL] -[BVAL_LH]
-[BVAL_LL] -[APL_HH] -[APL_HL]
-[APL_LH] -[APL_LL] –ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '*' (2Ah): Monitor ID
(Use ‘*’ as “ALL” for Broadcasting of parameter) '0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '1'-'2'(31h, 32h): Message length.
Message
STX (02h): Start of Message 'C' -'2' -'2' -'4' (43h,32h,32h,34h): Auto Brightness Sensor Write command FVAL_HH:Front Sensor Detected Data(High High byte) FVAL_HL:Front Sensor Detected Data(High Low byte) FVAL_LH:Front Sensor Detected Data(Low High byte) FVAL_LL:Front Sensor Detected Data(Low Low byte) BVAL_HH:Back Sensor Detected Data(High High byte) BVAL_HL:Back Sensor Detected Data(High Low byte) BVAL_LH:Back Sensor Detected Data(Low High byte) BVAL_LL:Back Sensor Detected Data(Low Low byte) APL_HH:APL data(High High byte) APL_HL:APL data(High Low byte) APL_LH:APL data(LowHigh byte) APL_LL:APL data(Low Low byte) ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) Reply from Monitor to Host.
Basically, No need reply because it is broadcasting request.
[only for reference if the write command is done with certain destination ID]
Note: If AutoBrightness is not “Remote” then return Null Message.
Header Message Check code Delimiter
SOH-'0'-'0'-'A'-'B'-'1' -'4' STX-'C'-'3'-'2'-'4'-[RES]-[RES]-
[FVAL_HH]­[FVAL_HL]- [FVAL_LH]-[FVAL_LL]­[BVAL_HH]-[BVAL_HL]­[BVAL_LH]-[BVAL_LL]-[APL_HH]-[APL_HL]
-[APL_LH]-[APL_LL]-ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID 'B' (42h): Message type is "Command reply " '1' -'4' (31h, 34h): Message length.
Message
STX (02h): Start of Message 'C'-'3'-'2' -'4' (41h, 33h, 32h,34h): Auto Brightness Sensor Write reply Command
RES: Result code('0'(30h)-'0'(30h):Normal,
、
'0'(30h)-'1'(31h):Abnormal)
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FVAL_HH:Front Sensor Detected Data(High High byte) FVAL_HL:Front Sensor Detected Data(High Low byte) FVAL_LH:Front Sensor Detected Data(Low High byte) FVAL_LL:Front Sensor Detected Data(Low Low byte) BVAL_HH:Back Sensor Detected Data(High High byte) BVAL_HL:Back Sensor Detected Data(High Low byte) BVAL_LH:Back Sensor Detected Data(Low High byte) BVAL_LL:Back Sensor Detected Data(Low Low byte) APL_HH:APL data(High High byte) APL_HL:APL data(High Low byte) APL_LH:APL data(LowHigh byte) APL_LL:APL data(Low Low byte) ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
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14. Control Commands for Automatic ID Assignment function
You can set sequential Monitor ID automatically for daisy chained monitors. This function is executed by following 2 steps.
NOTE: This function is only applicable for RS232C based daisy chained connection, but not applicable CAT5(RS485) based daisy chained connection.
Step1: Change the communication mode to “ID assignment mode” by Mode change command. Step2: Apply Monitor ID by Automatic ID assignment Command.
14.1 Mode Change Command
Change the RS232C communication mode to “ID assignment Mode”.
NOTE: This command is only applicable for RS232C based daisy chained connection, but not applicable CAT5(RS485) based daisy chained connection. If you send this command to Monitor with RS485 connection, communication control problem will be occurred.
1) Write Parameters from PC to Monitors.
Header Message Check code Delimiter
SOH-'0'-'*'-'0'-'A'-'0'-'4' STX-'0'-'E'–ETX BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '*' (2Ah): Monitor ID
(Use ‘*’ as “ALL” for Broadcasting of parameter) '0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'4'(30h, 34h): Message length is 4 bytes.
Message
STX (02h): Start of Message '0' -'E' (30h,45h): Command code is 0Eh as "Force Mode Change" ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) Reply from Monitor to Host.
Basically, No need reply because it is broadcasting request.
[only for reference if the write command is done with certain destination ID]
Header Message Check code Delimiter
SOH-'0'-'0'-SRC-'B'-'0' -'6' STX- [RES]-[RES]- '0'-'E'
-ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller SRC: Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)) 'B' (42h): Message type is "Command reply " '0' -'6' (30h, 36h): Message length is 6 bytes.
Message
STX (02h): Start of Message RES: Result code('0'(30h)-'0'(30h):Normal,
、
'0'(30h)-'1'(31h):Abnormal) '0'-'E' (30h, 45h): Force Change Mode reply command ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
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14.2 Automatic ID Assignment
This command executes the Automatic ID assignment operation by Monitor itself. Only start
ID should be suggested by Host to 1
st
connected Monitor and daisy chained monitor can assign
own Monitor ID one by one sequentially.
NOTE: This function is only applicable for RS232C based daisy chained connection, but not applicable CAT5(RS485) based daisy chained connection. If you send this command to Monitor with RS485 connection, communication control problem will be occurred.
1) Write Parameters from PC to Monitors. Header Message Check code Delimiter
SOH-'0'-'*'-'0'-'A'-'0'-'8' STX-'C'-'2'-'2'-'0'-[VAL]-[VAL]
–ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '*' (2Ah): Monitor ID
(Use ‘*’ as “ALL” for Broadcasting of parameter) '0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'8'(30h, 38h): Message length is 8 bytes.
Message
STX (02h): Start of Message 'C'-'2'-'2'-'0' (41h, 32h, 32h,30h):"Exec ID Assignment" VAL:Value(Start Monitor ID No. (1-26)) (Ex.)
1 --- '0'(30h),'1'(31h) 26 --- '1'(31h),'A'(41h)
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) Reply from Monitor to PC.
Basically, No need reply because it is broadcasting request.
[This is only for reference if the write command is done with certain destination ID]
Header Message Check code Delimiter
SOH-'0'-'0'-SRC-'B'-'0' -'A' STX-[RES]-[RES] -'C'-'2'-'2'-'0'-[VAL]
-[VAL]–ETX
BCC CR
Header
SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller SRC: Monitor ID
This portion depends on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah)) 'B' (42h): Message type is "Command reply " '0' -'A' (30h, 41h): Message length.
Message
STX (02h): Start of Message RES: Result code('0'(30h)-'0'(30h):Normal,
、
'0'(30h)-'1'(31h):Abnormal) 'C'-'2'-'2' -'0' (41h, 32h, 32h,30h): Exec ID Assignment reply command VAL: ID No. suggested from Host ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
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Appendix
A. Operation Code (OP code) Table
[Note: Do not send any code to monitor except for the codes in following table. If you sent any “undefined” code to monitor, it may cause error of Monitor operation.]
Item OP code
page
OP code Parameter Remarks
Brightness 00h 10h 0: dark
| MAX.: bright
Contrast 00h 12h 0: low
| MAX.: high
Sharpness 00h 8Ch 0: dull
| MAX.:sharp
Tint 00h 90h 0:
| MAX.:
Color 02h 1Fh 0: pale
| MAX.: deep
Black Level 00h 92h 0: dark
| MAX.: bright
Noise Reduction 02h 20h 0: Off
| MAX.
Color control 00h Red: 16h
Green: 18h Blue: 1Ah
0:
|
MAX.:
Reserved
00h 14h
Color Temperature(2)
00h 0ch 0:2600K
| 74:10000K
100K/step
PICTURE
Picture reset 00h 08h 1: Reset Momentary H Position 00h 20h 0: Left side
| Max.: Right side
Depends on a dis
p
lay
timing
V Position 00h 30h 0: Down side
| Max.: Up side
Depends on a dis
p
lay
timing
Clock 00h 0Eh 0:
| Max.
Clock phase 00h 3Eh 0:
| Max.
H Resolution 02h 50h 0:
| Max.
V Resolution 02h 51h 0:
| Max.:
Zoom Mode 02h CEh 1:REAL
2:custom 5:Dynamic 6:Normal 7:FULL
SCREEN
Zoom H-Expansion 02h 6Ch
0:100％ |
100:300
％
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Item OP code
page
OP code Parameter Remarks
Zoom V- Expansion 02h 6Dh
0:100％
| 100:300
％
Zoom H-Position 02h CCh 0: Left side
| Max.: Right side
Zoom V-Position 02h CDh 0: Down side
|
Max.: Up side Screen reset 00h 06h 1: Reset Momentary Balance 00h 93h O: Left
|
50:(Center)
|
100: Right Treble 00h 8Fh O: Min.
|
50:(Center)
|
100: Max. Bass 00h 91h 0: Min.
|
50:(Center)
|
100: Max.
AUDIO
Audio reset 02h 31h 1: Reset Momentary PIP Size 02h 71h 1: Small
2: Middle
3: Large PIP Audio N/A
PIP
PIP Reset N/A Momentary Auto Setup 00h 1Eh 1: Execute Momentary Auto Adjust N/A
Power Save 00h E1h 0: OFF
1: ON Language 00h 68h 1:English
2:German
3:French
4:Spanish
5:Japanese
6:Italian
7:Swedish
8:Chinese
OSD Language
Gamma 02h DBh 1:normal
2:screen saving
gamma
Brightness 02h DCh 1:normal
2:decrease brightness
Cooling Fan
02h 7Dh 1:Auto
2:Forced ON
Screen Saver
Motion 02h DDh 0: 0s(Off)
|
90: 900s
10s/step
Color System 02h 21h 1: NTSC
2: PAL
3: SECAM
4: Auto
5: 4.43NTSC
6: PAL-60
Configuration 1
Side Border Color 02h DFh 0:Black
1: Middle
2: White
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Item OP code
page
OP code Parameter Remarks
Factory Reset 00h 04h 1: Reset Momentary
Configuration Reset N/A
OSD Turn Off
00h
FCh
0-4:Do not set.
5:5sec
|
120:120sec Information OSD 02h 3Dh 0:disable information
OSD 3-10: OSD timer [seconds]
Off Timer 02h 2Bh 0: OFF
1: 1 hour | 24: 24 hours
1 hour/step
H Position
02h 38h 0:
| MAX.:
OSD Position
V Position
02h 39h 0:
| MAX.:
Configuration 2
Input Resolution 02h DAh 1: Auto
2: 1024x768 3: 1280x768 4: 1360x768
Black Level Expansion
02h 22h 1: OFF
2: MIDDLE 3: HIGHT
Gamma Selection 02h 68h Gamma
Table Selection 1: Native
Gamma 4: Gamma=2.2 8: Gamma=2.4 7: S Gamma 5:
O
ption(Dicom
simulate)
Scan Mode
02ｈ
E3h 1: OVER SCAN
2: UNDERSCAN
Scan Conversion 02h 25h 1: OFF(INTERLACE)
2: Enable (IP ON/PROGRESSIVE)
Film Mode 02h 23h 1: OFF
2: AUTO
Monitor ID 02h 3Eh 1-26:ID IR Control 02h 3Fh 1: Lock (Off) 3:Primary
2: Normal 4:Secondary
H monitor 02h D0h 1
│
5
Number of H-division
V monitor 02h D1h 1
│
5
Number of V-division
Position 02h D2h 1: Upper left
│
MAX.: Lower right
Mode 02h D3h 1: Disable (OFF)
2: Enable (ON)
Tiling
Frame comp.
02h D5h 1: Disable (OFF)
2: Enable (ON)
Advanced Option
Power On Delay 02h D8h 0: OFF (0sec)
2,4,6,8,10,20,30,40, 50:50sec
Page 53
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Item OP code
page
OP code Parameter Remarks
Advanced Option Reset 02h E4h 1:RESET Momentary Input 00h 60h 1: RGB3 (D-SUB)
2: RGB4 (BNC) 3: RGB1 (HDMI) 4: RGB2 (DVI-D) 12: DVD/HD 5: VIDEO (Composite) 7: S-VIDEO 8: CAT5(Option) 9 DisplayPort
Picture Mode 02h 1Ah 1: sRGB
3: Hi-Bright 4: Standard 5: Cinema
SRGB:
PC mode only Cinema: A/V mode only
PIP ON/OFF Still ON/OFF
02h 72h 1: OFF
2: PIP
4: Still
PIP Input 02h 73h 0: No mean
1: RGB-3(D-SUB) 2: RGB-4(BNC) 3: RGB-1(HDMI) 4: RGB-2 (DVI-D) 12:DVD/HD 5: VIDEO (Composite) 7: S-VIDEO 8: CAT5(Option) 9 DisplayPort
This operation has limitation of selection. Please refer to the moni
t
or instruction manual.
Still Capture 02h 76h 0: Off
1: Capture
Momentary
Audio Input 02h 2Eh 1: Audio 1(PC) 4:HDMI
2: Audio 2 3: Audio 3
Mute 00h 8Dh 0,2: UNMUTE
1: MUTE
Volume UP/Down 00h 62h 0: whisper
| 100: loud
PIP H Position 02h 74h 0: left side
| MAX.: right side
PIP V Position 02h 75h 0: UP side
|
Max.: Down side Select Temperature sensor
02h
78h 1: Sensor #1
2: Sensor #2
Temperature
sensor
Readout a temperature 02h 79h Returned value is 2's
complement.
Refer to section 6.2
Read only
AutoBrightness On/Off 02h 2dh 0:Off
1:Local
2:Remote
Auto Brightness
AutoBrightness Control 02h E7h 0:Secondary
1:Primary
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B. Application Note for RS485 based communication using CAT5 Tx BOX.
1) RS-485 is half-duplex communication. So data flow control in HOST side is required.
2)
Data flow control is done by following procedure.
HOST send data to Monitor while both of RTS and DTR signal is “LOW” (Clear) status. HOST receive data from Monitor while RTS signal is “HIGH”(Set) status.
3)
Following chart shows more detailed timing of data flow control by RTS.
a: setup time of TxD by HOST: up to programming b: Data transmission time of TxD by HOST: up to data length c: Margin time of TxD period by HOST: up to programming d: Reply preparation time by Monitor =approx.140msec(min)
HOST PC should keep RTS signal “LOW” while above (b) period at least. (a) and (c) is required in order to make reliable communication between HOST and Monitor.
4)
Example of programming.
System: Case1:OS:Windows XP Professional SP2, CPU:Centrino Duo 1.66GHz Case2:OS:Windows XP Home SP1, CPU: Pentium4 2.8GHz Case3:OS:Windows XP Professional SP2, CPU:Pentium3 933MHz Procedure: /// /// Send Data ///
････
EscapeCommFunction(hFile,CLRRTS) ; CLEAR RTS & DTR SLEEP(20) ; put 20msec delay for above “
a: setup time of TxD by HOST”. WriteFile() ; Data transmission of TxD SLEEP(70) ; put 70msec delay for above “
c: Margin time of TxD period by HOST”. EscapeCommFunction(hFile,SETRTS) ; SET RTS& DTR
････ /// Receive Data (Ex. by Polling timer at 100msec interval)///
････
ReadFile() ; Data Receive of RxD
････
///
------------------------------------------- end of document--------------------------------------
R
equest
R
eply
RTS&DTR
TxD(Host->Monitor
RxD(Monitor->Host)
a
b
c
d
Page 55
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C. Application Note for LAN based communication
The RS-232C command code is been able to execute on LAN. When you make your application program, you use socket port as a TCP/IP client. Please refer general technical documents (commercially available) of network control.
Preparation of system setup
(1) Connect with the PC, the displays and LAN HUB with LAN cable. (See page 2.) (2)
The Main Power Switch (AC) of the display is ON. So the modes of the display are DC On, DC Off or Standby.
(3)
The PC is on.
(4)
Set the OSD menu “LAN SETTING".
DHCP CLIENT
Select whether to use DHCP client or not. Select OFF when not using it, and select ON when using it.
IP ADDRESS
Set the IP address of the monitor. Default address is 192.168.0.10. (It depends on model.)
SUBNET MASK
Set the gateway mask. Set it to 255.255.255.0 for normal use.
DEFAULT GATEWAY
Set the IP address of the gateway router to externally
connect the local area including the monitor. Default address is 192.168.0.1. (It depends on each model.)
(5)
Read the OSD menu “LAN SETTING" for control program.
PORT
Read the port number. Default number is 63007. (It depends on model. MDT652S 63007 or 3007)
Communication protocol order
(1) Open socket port ‘63007’ of the display IP address on the PC
as a TCP/IP client.
(On Windows PC, the port is “Winsock”. On Linux PC, the port is “socket”.)
(2)
Send RS-232C command code on TCP/IP protocol from the PC.
(Sending ‘Read command’ at first is recommended for confirming communication condition and display condition.)
(3)
Receive RS-232C command code on TCP/IP protocol from the display.
Note: This LAN command protocol has no NETWORK CERTIFICATION feature. When you don’t use in private network, you may change the IP address sometimes for low level security.
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All data are subject to change without notice.
Copyright 2008-2011 Mitsubishi ElectricCorporation All Right Reserved
This document provides the technical information for us ers. Mitsubishi ElectricCorporation reserves th e right to change or modify the information contained herein without notice. Mitsubishi El ectricCorp oration makes no warranty for th e use of its products an d bears no responsibili ty for any errors or omissions whi ch may appear in this document.
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