Sony LMD-3251MT User manual

LCD Monitor
Interface Manual for Programmers
LMD-3251MT
4-464-723-11(1)
© 2013 Sony Corporation

Table of Contents
2
Table of Contents
RS-232C
Communication Format ........................................ 3
Command Block Format ...................................... 4
Communication Protocol ...................................... 4
Connections ............................................................ 5
Features of the Command Protocol ..................... 5
Command Table .................................................... 6
Command Description .......................................... 7
Input Config (21H) ............................................. 7
Control Data (23H) ............................................ 7
Display Data (24H) ............................................ 8
User Memory (25H) ........................................... 8
Memory Name (26H) ......................................... 9
I/P Mode (27H) ................................................ 10
Selected Offset (28H) ....................................... 10
On Switch Function (29H) ............................... 10
Off Switch Function (2AH) ............................. 10
Select Display (2BH) ....................................... 11
Select Menu (2CH) .......................................... 11
Scan Aspect (2DH) .......................................... 11
Select Config Data (2FH) ................................. 11
Picture Config (30H) ........................................ 12
Multi Display (31H) ......................................... 12
BKM-256DD (3DH) ........................................ 13
3D Function 1 (3EH) ........................................ 13
3D Function 2 (3FH) ........................................ 14
White Balance Data (40H) ............................... 14
White Balance Data Copy (42H) ..................... 15
User Memory Data (43H) ................................ 16
3D Offset (49H) ............................................... 17
Select 3D Offset (4AH) .................................... 18
Status Sense (60H) ........................................... 18
White Balance Sense (61H) ............................. 18
3D Offset Sense (63H) ..................................... 18
User Memory Sense (65H) .............................. 18
Status Remote (6EH) ....................................... 19
Status Reply (70H) ........................................... 19
White Balance Reply (71H) ............................. 19
3D Offset Reply (73H) ..................................... 19
User Memory Reply (75H) .............................. 19
Status Remote Reply (7EH) ............................. 20
ACK Reply (04H) ............................................ 21
NAK Reply (05H) ............................................ 21
Ethernet
Overview .............................................................. 22
Connections .......................................................... 22
Communication Protocol .................................... 23
SDAP ................................................................ 23
SDCP ................................................................ 23
Command Block Format .....................................24
SDAP Packets ...................................................24
SDCP Packets ...................................................25
VMC Command Description ..............................27
Format of VMC Packets ...................................27
Details of VMC Commands .............................28

Communication Format 3
RS-232C
RS-232C
Communication Format
Asynchronous, bit serial signal
• Based on RS-232C
• Data signaling rate: 38400 bit/sec
• Start bit: 1 bit
• Data bit: 8 bits
• Parity: Even
• Stop bit: 1 bit
START
BIT
BIT
0(LSB)
BIT
1
BIT
2
BIT
3
BIT
4
BIT
5
BIT
6
BIT
7(MSB)
PA R I T Y
BIT
STOP
BIT
1(Mark)
0(Space)

Command Block Format / Communication Protocol
4
RS-232C
Command Block Format
Data communication between the remote controller and
the monitor is performed in accordance with the
following format.
• STX: start of text code value equals 02H.
• Byte Count
This indicates the number of data bytes (maximum
255 bytes) which have been inserted between this byte
and the Checksum byte. Values 00H, 01H, 02H are
illegal values.
• Destination address:
One byte address value which defines who receives
the message. The value 01H should be specified.
• Source address:
One byte address value which defines who transmits
the message. The destination to which the reply
should be sent is shown with this value. A value from
41H to 7FH should be specified.
• Command Block
This designates a particular command. Refer to
“Command Description” (on page 7) for the details.
• Checksum
This value is set so that the bottom eight bits of the
sum of all bytes from the byte count to the checksum
inclusive are zero.
Communication
Protocol
The remote controller should take the initiative in
communication between the remote controller and the
monitors.
The monitor will carry out one of the following actions
when receiving the message.
• When the received message is an undefined message,
a communication error occurs or the automatic
adjustment of APA or AUTO CHROMA/PHASE is
working, a NAK (05H) is issued.
• When the received command is a question, the specific
replay and data are issued.
• When the received command is anything else, an ACK
is issued.
The next message can be received as soon as a NAK is
issued from the monitor to the remote controller.
Notes
• If there are not enough or too many data bytes of data
values then a NAK is issued and no values are
specified.
• Bits which are not specified here are undefined bits
and their values are always ignored.
STX Byte
Count
Destination
Address
Source
Address
Command
Block
Checksum
1 byte 1 byte 1 byte 1 byte n bytes 1 byte

Connections / Features of the Command Protocol 5
RS-232C
Connections
Pin assignment for the RS-232C connector is as follows.
Features of the
Command Protocol
This protocol provides the following features when
individual monitors are controlled.
• Switch functions can be changed.
• The ability to remotely make settings and adjustments
normally made with the monitor’s menu.
Pin number Signal
1NC
2RX
3TX
4NC
5GND
6NC
7RTS
8CTS
9NC
15
69

Command Table
6
RS-232C
Command Table
Using this protocol, the following commands can be
executed by the monitors.
All values in the following table are hexadecimal.
× : varies depending on the number of data items.
Command from Remote Controller Return from Monitor
Specific
Command Name Data Bytes Specific Command Name Data Bytes
21 Input Config 2 04 ACK 0
23 Control Data × 04 ACK 0
24 Display Data × 04 ACK 0
25 User Memory 1 04 ACK 0
26 Memory Name × 04 ACK 0
27 I/P Mode 1 04 ACK 0
28 Selected Offset 1 04 ACK 0
29 On Switch Function 1 04 ACK 0
2A Off Switch Function 1 04 ACK 0
2B Select Display 1 04 ACK 0
2C Select Menu 1 04 ACK 0
2D Scan Aspect 1 04 ACK 0
2F Select Config Data 2 04 ACK 0
30 Picture Config 1 04 ACK 0
31 Multi Display 3 04 ACK 0
3D BKM-256DD 2 04 ACK 0
3E 3D Function 1 2 04 ACK 0
3F 3D Function 2 2 04 ACK 0
40 White Balance Data × 04 ACK 0
42 White Balance Data Copy 1 04 ACK 0
43 User Memory Data × 04 ACK 0
49 3D Offset 2 04 ACK 0
4A Select 3D Offset 1 04 ACK 0
60 Status Sense 1 70 Status Reply ×
61 White Balance Sense 1 71 White Balance Reply 7
63 3D Offset Sense 1 73 3D Offset Reply 7
65 User Memory Sense 1 75 User Memory Reply ×
6E Status Remote 0 7E Status Remote Reply 1

Command Description 7
RS-232C
Command Description
Input Config (21H)
Used to control the current video signal being displayed
on the monitor.
The switches effectively being controlled are Input
Connector and Preset White Balance.
The command has two sections.
1. Information being changed
2. Values to be applied
1. Information being changed
The values are specified as follows:
1Input connector information
2Preset white balance information
When 1 is set in the bit position, information for the bit
is applied. When 0 is set, information for the bit is
ignored. When 1 is set in the 1and 2bit positions,
information on both items is applied.
2. Values to be applied
The values are specified as follows:
1Input connector
COMPOSITE = 0000
Y/C = 0010
RGB = 0100
COMPONENT = 0101
DVI = 1000
HD15 = 1001
OPTION A-1 = 0110
OPTION A-2 = 0111
OPTION B-1 = 1010
OPTION B-2 = 1011
The values which are specified here are applied to the
current monitor state if the input setting is set to ON.
If the input setting is set to OFF, the values are
ignored.
2Preset white balance information
D56 = 0001
D65 = 0011
D93 = 0000
USER CONFIG 1 = 0010
USER CONFIG 2 = 0100
USER CONFIG 3 = 0110
USER CONFIG 4 = 0111
USER CONFIG 5 = 1000
The values specified here are applied to the current
monitor state.
Control Data (23H)
Defines the keys on the front panel and data in the USER
CONTROL menu.
The command has two sections.
1. The element of CONTROL data being sent
2. CONTROL data value
1. The element of CONTROL data being sent
The element of CONTROL data being sent is the first
byte of data contained within the command block of the
message.
Several items of CONTROL data can be specified in one
message stream. When the bit of an item is set to 1, the
data value is changed, and it is set to 0, the data value is
not changed. When the byte value is 0, no data are
changed and an ACK is issued.
The values are specified as follows:
1CONTRAST
2APERTURE
3BRIGHTNESS
4PHASE
5CHROMA
6BACKLIGHT
2. CONTROL data value
Each value is one byte of data. APERTURE is specified
as 0 to 6, BACKLIGHT is specified as 0 to 5 and others
are 0 to 100 (8 bit data, MSB is a mark data. If the value
is a negative number, it is represented as a complement
of 2). The data is defined from the lower bit item to the
higher one. For example, if the PHASE and
CONTRAST data are defined, the PHASE data is
specified in the first byte and the CONTRAST data is
specified in the next byte.
76543210
12

Command Description
8
RS-232C
The values are specified as follows:
1Mark data
+ = 0
– = 1
2Numerical value data
The values of the CONTROL data which is defined by
this command are applied to the current monitor state.
Display Data (24H)
Defines PITCH, DOT PHASE, SIZE H, SIZE V, SHIFT
H and SHIFT V data in the USER CONFIG menu.
The command has two sections.
1. The element of USER CONFIG data being sent
2. USER CONFIG data value
1. The element of USER CONFIG data being
sent
The element of USER CONFIG data being sent is the
first byte of the command block of the message.
Several items of USER CONFIG data can be specified
in one message stream. If 1 is indicated in the bit
position, the data is changed and 0 is indicated, no data
is changed.
If the byte value is 0, no data are changed and an ACK
is issued. If the RESET value is set to 1, all items are
specified to the default setting.
The values are specified as follows:
1RESET
2PITCH
3DOT PHASE
4SIZE H
5SIZE V
6SHIFT H
7SHIFT V
2. USER CONFIG data value
Each adjustment value is one byte of data (8 bit data,
MSB is a mark data. If the value is a negative number, it
is represented as a complement of 2). The data are
defined from the subordinate bit element to the
superordinate bit element in the data bytes. For
example, if the data to be adjusted are SIZE H and
SHIFT H, then the first byte of data bytes is for SHIFT
H and the next byte is for SIZE H.
Adjustment Item Max. Min.
PITCH 0 32
DOT PHASE 0 63
SIZE H –100 +100
SIZE V –100 +100
SHIFT H * *
SHIFT V * *
* The maximum and minimum values vary according to the input signal
(resolution). See “Maximum and minimum values of SHIFT H and
SHIFT V” (page 34).
The values are specified as follows:
1Mark data
+ = 0
–= 1
2Numerical value data
This is not the data to increase or decrease the setting.
Enter the adjustment value.
The standard value (center value) of the PITCH data is
not always 0 (zero). It differs depending on the input
signals. The maximum and minimum values
mentioned above are variable values to each standard
value.
User Memory (25H)
Controls LOAD/SAVE of each data set in the USER
MEMORY menu.
The values are specified as follows:
1Control data
LOAD = 01
SAVE = 10
2User memory number
Specifies the number 01 to 20.
If a number other than the above except 00 is
specified, an ACK is issued.
When 00 is specified, the data is applied as follows:
If LOAD (01) is specified in 1, the default setting is
applied.
76543210
21
76543210
1 32 4 6 75
76543210
21
76543210
12

Command Description 9
RS-232C
If SAVE (10) is specified in 1, an ACK is issued.
Memory Name (26H)
Defines the name (ASCII) of each user memory in the
USER MEMORY menu.
The command has two sections.
1. User memory number to change the name
2. Memory name setting data
1. User memory number to change the name
Defines the user memory number to change the name.
The values are specified as follows:
1User memory number
Specifies the number 01 to 20. If a number other than 01
to 20 is specified, a NAK is issued.
2. Memory name setting data
1. Specifies the length of the name
Specifies 1 to 18 charactors.
76543210
1

Command Description
10
RS-232C
2. Specifies the name data (ASCII code)
Usable characters are as follows (42 characters):
If data other than the data listed above is specified, the message is ignored and a NAK is issued.
I/P Mode (27H)
Controls the MODE select of I/P MODE.
The values are specified as follows:
12 Mode select
01 00 INTER-FIELD
01 01 FIELD MERGE
01 10 LINE DOUBLER
The values are applied to the current monitor state.
Selected Offset (28H)
Defines the offset to be applied to COMPONENT or
NTSC signal which is selected to be displayed on the
monitor.
The values are specified as follows:
1COMPONENT signal offset
SMPTE = 01
BETA 0 = 10
BETA 7.5 = 11
2NTSC signal offset
NTSC 0 = 01
NTSC 7.5 = 10
The values are applied to the current monitor state.
On Switch Function (29H)
This command is used to set the offset value of APA,
POWER SAVING, KEY INHIBIT, Tally Lamp (green),
BLUE ONLY, MONO, MIRROR IMAGE,
BACKGROUND and SPLASH LOGO to ON.
The values are specified as follows:
12 3 4Action taken
11 001 APA applied
11 010 POWER SAVING applied
11 100 KEY INHIBIT applied
11 101 Tally Lamp (green) applied
1 11 011 BLUE ONLY applied
1 11 100 MONO applied
1 11 101 MIRROR IMAGE applied
1 11 000 BACKGROUND applied
1 00 000 10 SPLASH LOGO applied (5
seconds)
1 00 010 10 SPLASH LOGO applied (10
seconds)
Off Switch Function (2AH)
This command is used to set the offset value of APA,
POWER SAVING, KEY INHIBIT, Tally Lamp (green),
BLUE ONLY, MONO, MIRROR IMAGE,
BACKGROUND and SPLASH LOGO to OFF.
The values are specified as follows:
ASCII 0x20 0x2C 0x2D 0x2E 0x2F 0x30 0x31 0x32 0x33 0x34 0x35
Character Space , −. /012345
ASCII 0x36 0x37 0x38 0x39 0x41 0x42 0x43 0x44 0x45 0x46 0x47
Character 6 7 8 9 A B C D E F G
ASCII 0x48 0x49 0x4A 0x4B 0x4C 0x4D 0x4E 0x4F 0x50 0x51 0x52
Character H I J K L M N O P Q R
ASCII 0x53 0x54 0x55 0x56 0x57 0x58 0x59 0x5A 0x5F
Character S T U V W X Y Z _
76543210
12
76543210
21