NEC RS-232C user manual Application, Connectors and wiring, Communication Parameter

Page 1

External Control

NEC LCD Monitor

1. Application

This document defines the communications method for control of the NEC LCD monitor, MultiSync X461UN /X461HB /X431BT /P401 /P461 /P521 /P701 /S401 /S461 /S521 and MULTEOS M401 /M461 /M521 when using an external controller.

2. Connectors and wiring

2.1RS-232C Remote control

Connector: 9-pin D-Sub

Cable: Cross (reversed) cable or null modem cable

(Please refer “Controlling the LCD monitor via RS-232C Remote control” on User’s manual.)

2.2 LAN control

Connector: RJ-45 10/100 BASE-T

Cable: Category 5 or higher LAN cable

(Please refer “Controlling the LCD monitor via LAN control” on User’s manual.)

3. Communication Parameter

3.1 RS-232C Remote control

(1)

Communication system

Asynchronous

(2)

Interface

RS-232C

(3)

Baud rate

9600bps

(4)

Data length

8bits

(5)

Parity

None

(6)

Stop bit

1 bit

(7)

Communication code

ASCII

3.2 LAN control

(1)

Communication system

TCP/IP (Internet protocol suite)

(2)

Interface

Ethernet (CSMA/CD)

(3)

Communication layer

Transport layer (TCP)

(4)

IP address

* Using the payload of TCP segment.

(Default) 192.168.0.10

 

 

* If you need to change,

(5)

Port No.

Please refer “Network settings” on User’s manual.

7142 (Fixed)

(Note)

The monitor will disconnect the connection if no packet data is received for 15 minutes.

And the controller (PC) has to re-connect to control the monitor again, after 15 minutes or more.

3.3 Communication timing

The controller should wait for a packet interval before next command is sent. The packet interval needs to be longer than 600msec for the LCD monitor.

(1/50)

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Contents Application Connectors and wiringCommunication Parameter Header block format fixed length Communication FormatALL STX Message block formatETX STX ETX MSB LSBMSB LSB Check codeSOH Following is an example of a Check code BCC calculation DelimiterGet current Parameter from a monitor Message typeSet parameter Current condition Set parameter replySave Current Settings CommandsGet Timing Report and Timing reply MSB LSB ETXHow to change the Brightness setting Typical procedure exampleNull Message BCCHeader Message Check code Delimiter Message Check code Delimiter Code STX-0-0-0-2-7-9-0-0 Power status read Power control procedureController requests the monitor to control monitor power Power controlAsset Data Read Request and reply Asset Data read and writeAsset Data write Date & Time Read Date & Time read and writeBCC DS-ETX Date & Time Write Check code Delimiter Schedule Read Schedule read and writeSTX-C-3-2-1-PG-ON HOUR-ON MIN Page BCC OFF HOUR-OFF MIN-INPUT-WD-FL-ETX Schedule Write B33h, 42h 59 =3Bh C33h, 43h Off timer isn’t setPG-ON HOURS-ON MIN-OFF HOURS-OFF MIN-INPUT-WD-FL-P Mode Page BCC OFF HOUR-OFF MIN-INPUT-WD-FL-P Mode Header 31/50 SOH-0-0-Monitor ID-B-0-C STX-C-3-1-5-ST-PG-EN-ETX STX-C-2-1-4-PG-ON HOUR-ON MIN 34/50 BCC Self-diagnosis status read Self diagnosisST Result of self-tests 0-030h, 30h00 Normal Serial No. Read Serial No. & Model Name ReadModel Name Read Security Lock Control Security Lock930h, 39h Page ISF Dicom SIMAdjust Hdmi SurroundRGB/HV POPPIP OSD Option DVI-PC DVI-HD SyncNtsc SecamPIP ON/OFF All data are subject to change without notice
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