- 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
Page 4
< 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.
Page 5
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
Page 7
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
Page 27
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
Page 28
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:
Page 30
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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