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14. Serial No. & Model Name Read

14.1 Serial No. Read

This command is used in order to read a serial number.

1) The controller requests the monitor to read a serial number.

Header Message Check

code

Delimiter

SOH-'0'-Monitor ID-

'0'-'A'-'0'-'6'

STX-'C'-'2'-'1'-'6'-ETX BCC CR

Header

SOH (01h): Start of Header

'0' (30h): Reserved

Monitor ID: Specify the Monitor ID which you want to get serial number.

Ex.) If Monitor ID is '1', specify 'A'.

'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 4.3 “ Check code” for a BCC calculation.

Delimiter

CR (0Dh): End of packet

2) The monitor replies the serial No. data to the controller.

Header Message Check code

Delimiter

SOH-'0'-'0'-Monitor ID-

'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.

Monitor ID: Indicate a replying Monitor ID.

Ex.) When this byte is set to 'A', the replying Monitor ID is '1'.

'B' (42h): Message type is "Command reply".

N-N: Message length

Note.) The maximum data length that can be returned from 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 byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h).

Ex.) Foe example when receiveing Serial Number data 33h 31h 33h 32h 33h 33h 33h 34h

Step1: Serial Number data is encoded as character string.

Example:

33h 31h 33h 32h 33h 33h 33h 34h -> '3','1','3','2','3','3','3','4'

Step2: Decode pairs of ASCII characters to hexadecimal values.

Example:

'3','1','3','2','3','3','3','4' -> 31h 32h 33h 34h

Step3: Byte data represents the ASCII string data.

Example:

31h 32h 33h 34h -> "1234"

Result: Serial Number is "1234".

Questions and Answers:

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NEC MultiSync C431 Specifications

General

Response time	6.5 ms
Display diagonal	50 \
Display brightness	400 cd/m²
Display technology	LCD
Native aspect ratio	-
Vertical scan range	24 - 85 Hz
Horizontal scan range	31.5 - 91.1 kHz
LED backlighting type	Edge-LED
Display number of colors	1.073 billion colors
Display diagonal (metric)	125.73 cm
Active display area (W x H)	1095 x 616 mm
Supported graphics resolutions	800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 720 (HD 720), 1280 x 768, 1280 x 800, 1280 x 960, 1360 x 768 (WXGA), 1400 x 1050 (SXGA+), 1440 x 900 (WXGA+), 1600 x 1200 (UXGA), 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA)
USB 2.0 ports quantity	1
Ethernet LAN data rates	10, 100 Mbit/s
Annual energy consumption	110 kWh
Power consumption (standby)	0.5 W
Power consumption (typical)	75 W
USB version	2.0
Ethernet LAN	Yes
HDMI ports quantity	3
Compatible memory cards	MicroSD (TransFlash)
Purpose	Universal
Product type	Group video conferencing system
Product color	Black
Number of persons	- person(s)
Operating hours (hours/days)	24/7
International Protection (IP) code	IP5X, IP2X
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	20 - 80 %
Orientation	Horizontal/Vertical
Certification	CE; EMC B; FCC; PSB; TÜV GS; UL/C-UL / CSA; VCCI
Product design	Digital signage flat panel
Placement supported	Indoor
Bezel width (bottom)	12.4 mm
Panel mounting interface	300 x 300 mm
Audio formats supported	MP3, WAV
Image formats supported	JPG, PNG
Video formats supported	FLV, H.264, MOV, MP4, WMV
Sustainability certificates	RoHS, ENERGY STAR
RMS rated power	20 W
Number of built-in speakers	2
Megapixel	- MP
Image sensor size	- \
Cables included	AC, DisplayPort, HDMI