- As shown in Fig. 1-1, first, connect the personal computer ’s RS-232C serial port to the 1st LCD dis
play’s LINK port and then begin to add connections from a LCD display, starting from the OUT port.
- The first & last LCD displays located at both ends of dais y chain connection must be term inated by
setting the pin 1 & 2 of DIP switch ( Set ) to ON position, located next to OUT port. For other daisy
chain LCD display(s), please keep the pin 1 & 2 of DIP switc h at OFF position ( Pin 1 & 2 are
default at OFF position ).
*The new DIP switch setting requires a power cycle of LCD display to take effect.
- The MCS m odule of LCD display will automatically assign an available ID number from 1 to 64 to
each LCD display when connected to the daisy chain, to elim inate LCD displays tr ying to use the
same IDs simultaneously.
15 feet serial cable
( over 15 feet, extender re quired )
Fig. 1- 1 Connecting the PC & LCD Displays
RS-232C
Set switc h
For th e 1st and last display,
push the set switch upward
For other daisy chain displays,
push the set switch downward
RJ-45 jack
LINK OUT
Cat5 / 6
max. 300
IN OUT IN OUT IN OUT
cable
meters
Cat5 / 6 c
max. 300
meters
Daisy chain up to
meter s and 64
displays
able
1,000
Cat5 / 6
max. 300
cable
meters
up to 64 displays
< 1.2 > Connection Standard
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D,
0x43,0x06
0 x04
Power
0x00
0x00
0x00
0x00
0x00
0x0D, 0x0A
Header
Command
0x01
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
0xFA
Footer
0x4D,
0x43,0x06
0 x04
0x01
0x00
0x00
0 x00
0x00
0x00
0x0D, 0x0A
1) Computer to LCD display connection standard
- Conducts bi-direction al communication using serial RS232.
- Use three signal wires of TxD, ( pin 2 ), RxD ( pin 3 ) and GND ( pin 5 ), among the RS232
standard wires, as Fig.
2-1.
- Use DTR ( pin 4 ), RTS ( pin 7 ) for hot-plug detect.
- The distance between the PC computer to LCD display is limited 15m.
2) LCD display to LCD display conn ection standard
3) Command communications
- Conducts bi-direction al communication using CAN bus
- A maxim um of 64 LCD display units can be dais y chained to one CAN bus, up to 1,000 meters.
- The distance between LCD Displays is limited 300 meters via Cat 5/ 6 cable.
The CAN bus requires the MCS module of LCD display registration by sending command < 0x01 >
to add or remove the LCD display(s) from the CAN bus before com mand com munications. Please
refer to page 6 for m ore details.
All communications are conducted in the form of hexadec imal number, and the checksum c alculation
method as below :
Here, each set functions according to the com mands received and responds with ACK at the same time.
Therefore, the operation of each set s hould be checked after this process.
MCS
Port
Color
Activity
IN
Green
Solid LED indicates that the MSC board is powe red on.
No light indica tes the board is powered off.
IN
Orange
Blinkin g L ED indicated that the data is being transmitte d th rough the connection. No
lig ht indicates no data is transmitted
Bit Rate
9600 bps
Data Bits 8 bits
Parity None
Stop Bits 1 bit
Flow Control None
Multi-display Control Module Panel
< 1.2 > Connection Standard
4) The status lights ( LED )
Table 2-1 RS-232 Communication Standards
Fig. 2-1 RS-232 pin out DB-9 pin used for Asynchronous Data
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
No.
Type of Command
Command
Range of Value ( Decimal )
Wait ACK (ms)
1
CAN Bu s Registry
0x01 --
2,000
2
Get Address
0x02
--
200
3
Get Name
0x03
--
200
4
Get Power Status
0x04
0 ~ 1
200
5
Get Display Status
0x05
--
200
6
Get Screen Sta tus
0x06 --
200
7
Get PIP Sta tus
0x07 --
200
8
Set Display ID
0x15 1 ~ 64
200
9
Set Display Name
0x16 --
200
10
Show Display ID & Name
0x17
5 ~ 255
200
11
Volume Control
0x20
0 ~ 100
200
12
Mute Control
0x21
0 ~ 100
200
13
I nput Source Select
0x22
--
2,000
14
OSD Button Control
0x23
0 ~ 1
200
15
I nfrared Remote Control
0x24 0 ~ 1
200
16
Sound Select Control
0x25 --
200
17
Contrast Control
0x26
0 ~ 100
200
18
Brightness Con trol
0x27
0 ~ 100
200
19
Auto Adjust
0x28 0 5,000
20
Power Control
0x45
0 ~ 1
7,000
21
PIP Control
0x50
--
200
22
PIP Source Select
0x51 --
200
23
Main-PIP Swap Co ntrol
0x52 0
200
24
PIP Locate Control
0x53
--
200
< Part 2 > Command
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x06, 0x4D,0x43
0x01
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x0D, 0x0A
He ader
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43 ,0x06
0x01
MAC1
MAC2
MAC3
MAC4
0x00
0x00
0x0D, 0x0A
He ader
Co mmand
ID
Val 1
Val 2
Va l 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43 ,0x15
0x01
ERR
0x0 0
0x00
0x00
0x00
0x00
0x0D, 0x0A
0x10
Display contro ller error
0x11
Serial controller error
0x12
Unsupported Command
0x13
Checksum error
0x14
Bad param ete r
0x15
Unknown error
< 2.1 > Detailed Description of Commands
1) CAN Bus Registry
•Function
The computer registers the MCS module of LCD display(s) to CAN bus daisy chain c onnection.
*Registration requires when add or rem ove the LCD displays from the CAN bus connection.
• Register MCS Module(s)
• Ack
MAC1 : The 1st byte of MAC address for the LCD display
MAC2 : The 2nd byte of MAC address for the LCD display
MAC3 : The 3rd byte of MAC address for the LCD display
MAC4 : The 4th byte of MAC address for the LCD display
•Nak
ERR : Error code that shows the type of error that occurred
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x06, 0 x4D,0x43
0x03
0x00
0x00
0x00
0x00
0x00
0x00
0x0D, 0 x0A
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x4 3,0x06
0x0 3
Char1
Char 2
Char3
Char4
Char5
Char6
0x0D, 0x0A
He ader
Co mmand
ID
Val 1
Val 2
Va l 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43 ,0x15
0x03
ERR
0x0 0
0x00
0x00
0x00
0x00
0x0D, 0x0A
< 2.3 > Get Name
•Function
The computer shows the name of the LCD display
• Get LCD Display Address
• Ack
MCS
Multi-display Control Module Panel
Char1 : The 1st character of the name
Char2 : The 2nd character of the name
Char3 : The 3rd character of the name
Char4 : The 4th character of the name
Char5 : The 5th character of the name
Char6 : The 6th character of the name
*The default value of the character of the nam e is 0xFF
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x06, 0 x4D,0x43
0x07
0x00
0x00
0x00
0x00
0x00
0x00
0x0D, 0 x0A
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Che cksum
Footer
0x4D, 0x4 3,0x06
0x07
PIP
P.Sour
P. Loc
0x00
0x00
0x00
0 x0D, 0x0A
He ader
Co mmand
ID
Val 1
Val 2
Va l 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43 ,0x15
0x07
ERR
0x0 0
0x00
0x00
0x00
0x00
0x0D, 0x0A
< 2.7 > Get PIP Status
•Function
The computer shows the PIP setting of the LCD display
The PIP function may or not be av ailable on a particular LCD display depending on the model selected
• Get PIP Status
• Ack
PIP : The PIP status value code for the display
P.Sour : The PIP source code for the display
P.Loc : The PIP location code for the display
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
Head er
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x06, 0x4D,0x43
0x16
Char1
Char2
Char3
Char 4
Char 5
Char6
0x0D, 0x0 A
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Che cksum
Footer
0x4D, 0x43,0x06
0x16
Char 1
Char2
Char3
Char4
Char5
Char 6
0x0D, 0 x0A
Heade r
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Foo ter
0x4D, 0x43,0x15
0x16
ERR
0x00
0x00
0x00
0x00
0x00
0x0D, 0x0A
< 2.9 > Set Display Name
•Function
The computer sets the name of the LCD display.
•Set Display Name
Char1 : The 1st character of the name
Char2 : The 2nd character of the name
Char3 : The 3rd character of the name
Char4 : The 4th character of the name
Char5 : The 5th character of the name
Char6 : The 6th character of the name
*Character of the nam e c an allow [ a~z ],[ A~Z] , [ 0-9 ] & space character.
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
Head er
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x06, 0x4D,0x43
0x20
Vol
0x00
0x00
0x00
0x00
0x00
0x0D, 0x0 A
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Che cksum
Footer
0x4D, 0x43,0x06
0x20
Vol
0x0 0
0x00
0x00
0x00
0 x00
0x0D, 0 x0A
Heade r
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Foo ter
0x4D, 0x43,0x15
0x20
ERR
0x00
0x00
0x00
0x00
0x00
0x0D, 0x0A
< 2.11 > Volume Control
•Function
The computer change s the volume level of the LCD display
The audio function may or not be available on a partic ular LCD display depending on the model selected
•Set Volum e
Vol : The volume level value code of the LCD display (0~100)
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x0 6, 0x4D,0x43
0x2 5
S.S el
0x00
0 x00
0x00
0x00
0x00
0x0D, 0x0A
0x01 Main
0x02 P IP
He ader
Co mmand
ID
Val 1
Val 2
Va l 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43 ,0x06
0x25
S.Sel
0x0 0
0x00
0x00
0x00
0x00
0x0D, 0x0A
He ader
Co mmand
ID
Val 1
Val 2
Va l 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43 ,0x15
0x25
ERR
0x0 0
0x00
0x00
0x00
0x00
0x0D, 0x0A
< 2.16 > Sound Select Control
•Function
The computer switches the sound setting of the LCD display
The PIP function may or not be available on a particular LCD dis play depending on the model selected
•Set Sound
S.Sel : The sound s elec t code for the LCD display
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Va l 6
Checksum
Footer
0x0 6, 0x4D,0x43
0x45
Power
0x00
0x00
0x00
0x00
0x00
0x0D, 0 x0A
0x00
Power OFF
0x01 Power ON
He ader
Co mmand
ID
Val 1
Val 2
Va l 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43 ,0x06
0x45
Power
0x0 0
0x00
0x00
0x00
0x00
0x0D, 0x0A
He ader
Co mmand
ID
Val 1
Val 2
Va l 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43 ,0x15
0x45
ERR
0x0 0
0x00
0x00
0x00
0x00
0x0D, 0x0A
< 2.20 > Power Control
•Function
The computer switches the power for the screen of LCD display
•Set Power
Power : The power code for the s creen of LCD display
• Ack
• Nak
Head er
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Foo ter
0x06, 0x4D,0x43
0x50
P IP
0x00
0x00
0x00
0x00
0x00
0x0D, 0x0 A
0x10 PIP OFF
0x11 Small
0x12 Large
0x13 S ide by side
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43,0x06
0x50
PIP
0x00
0x00
0x00
0x00
0 x00
0x0D, 0 x0A
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43,0x15
0x50
ERR
0x00
0x00
0x00
0x00
0 x00
0x0D, 0 x0A
< 2.21 > PIP Control
•Function
The computer turns the PIP function of the LCD display.
The PIP function may or not be available on a particular LCD display depen ding on the m odel selected
•Set PIP Control
PIP : The PIP function code for the LCD display
• Ack
• Nak
Header
Comm and
ID
Val 1
Val 2
Val 3
Val 4
Va l 5
Val 6
Checksum
Footer
0x06, 0 x4D,0x43
0x51
P.S our
0x00
0x00
0x00
0x00
0x00
0x0D, 0x0A
0x10 VGA
0x11 S-Video
0x12 Composite
0x13 DVI-D
0x14 HDMI
0x15 SDI
0x16 YPbP r
0x17 TV
Heade r
Comm and
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Check-
sum
Footer
0x4D, 0x43,0x06
0x51
P.Sour
0x00
0x00
0x00
0x00
0x00
0x0D, 0x0A
Heade r
Comm and
ID
Val 1
Val 2
Va l 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43,0x15
0x51
ERR
0x0 0
0x00
0x00
0x00
0x00
0x0D, 0x0A
< 2.22 > PIP Source Control
•Function
The computer adjusts the PIP source of the LCD display
The PIP function may or not be available on a particular LCD display depending on the model selected
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
PIP
Main
VGA
S-Video
Comp os-
ite
DVI-D
HDMI
SDI
YPbPr
TV
VGA
X O O O O O O
O
S-Video
O X X O O O O
X
Composite
O X X O O O O
X DVI-D
O O O X X O O
O
HDMI
O O O X X O O
O
SDI
O O O O O X X
O
YPbPr
O O O O O X X
O
TV
O X X O O O O
X
< 2.22 > PIP Source Control
**The PIP is operable in the following table:
Header
Comm and
ID
Val 1
Val 2
Val 3
Val 4
Va l 5
Val 6
Checksum
Footer
0x06, 0 x4D,0x43
0x52
P.Swp
0x00
0x00
0x00
0x00
0x00
0x0D, 0x0A
Heade r
Comm and
ID
Val 1
Val 2
Va l 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43,0x06
0x52
P.S wp
0x0 0
0x00
0x00
0x00
0x00
0x0D, 0x0A
Heade r
Comm and
ID
Val 1
Val 2
Va l 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43,0x15
0x52
ERR
0x0 0
0x00
0x00
0x00
0x00
0x0D, 0x0A
< 2.23 > PIP Swap Control
•Function
The computer swaps the main screen with PIP screen
The PIP function may or not be available on a particular LCD display depending on the model selected
Available only when the PIP function is ON
•Set PIP Swap
P.Swp : 0x00 ( always )
•Ack
MCS
Multi-display Control Module Panel
• Nak
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
14628 Central Ave,
Chin o, CA 91710
tel: 909.597.7588, fax:909.597.1939
Head er
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Foo ter
0x06, 0x4D,0x43
0x53
P.Loc
0x00
0x00
0x00
0x00
0x00
0x0D, 0x0 A
0x10 Upper Left
0x11 Upper Right
0x12 Lower Left
0x13 Lower Right
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43,0x06
0x53
P.Loc
0x00
0x00
0x00
0x00
0 x00
0x0D, 0 x0A
Header
Command
ID
Val 1
Val 2
Val 3
Val 4
Val 5
Val 6
Checksum
Footer
0x4D, 0x43,0x15
0x53
ERR
0x00
0x00
0x00
0x00
0 x00
0x0D, 0 x0A
< 2.24 > PIP Location Control
•Function
The computer adjusts the PIP position of the display
The PIP function may or not be available on a particular LCD display depending on the m odel selected
Available only wh en the PIP is in sm all or large size state
•Set PIP location
P.Loc : The PIP location code for the LCD display
• Ack
• Nak
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