NEC M40-AV M40/M46 User Manual - Page 43

Interface, Control command diagram - pdf

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English Using the LCD with RS-232C - continued The following control sequence is used for a single Multeos display. When using the following control commands, all of the daisy-chained monitors can be controlled at the same time from the primary monitor. However, reply and status commands will only pertain to the primary monitor, and not to the secondary monitors. 1) Interface PROTOCOL BAUD RATE DATA LENGTH PARITY BIT STOP BIT FLOW CONTROL RS-232C 9600 [bps] 8 [bits] NONE 1 [bit] NONE 2) Control command diagram The command is structured by the address code, function code, data code and end code. The length of the command is different for each function. HEX ASCII Address Code 30h 30h '0' '0' Function Code Function Function Data Code Data Data End Code 0Dh [Address code] 30h 30h (In ASCII code, '0' '0') fixed. [Function code] A code of each fixed control move. [Data code] A code of each fixed control data (number) and not always indicated. [End code] 0Dh (In ASCII code, ' ' ) fixed. To control multiple Multeos monitors that are daisy-chained together please use the extended control command. Instructions for the extended control command can be found on the CD included with the display. The file is called "External_control_M4X.pdf ". English-37

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English
English-37
Using the LCD with RS-232C
- continued
°e following control sequence is used for a single Multeos display.
When using the following control commands, all of the daisy-chained monitors can be
controlled at the same time from the primary monitor. However, reply and status com-
mands will only pertain to the primary monitor, and not to the secondary monitors.
1) Interface
PROTOCOL
RS-232C
BAUD RATE
9600 [bps]
DATA LENGTH
8 [bits]
PARITY BIT
NONE
STOP BIT
1 [bit]
FLOW CONTROL
NONE
2) Control command diagram
°e command is structured by the address code, function code, data code and end
code. °e length of the command is different for each function.
Address Code
Function Code
Data Code
End Code
HEX
30h 30h
Function
Data
0Dh
ASCII
'0' '0'
Function
Data
[Address code]
30h 30h (In ASCII code,
'
0
''
0
'
) fixed.
[Function code]
A code of each fixed control move.
[Data code]
A code of each fixed control data (number) and
not always indicated.
[End code]
0Dh (In ASCII code,
'
'
) fixed.
To control multiple Multeos monitors that are
daisy-chained together please use the extended
control command. Instructions for the ex-
tended control command can be found on the
CD included with the display.
°e file is called
“External_control_M4X.pdf”.