NEC RS-232C manual Direct TV Chanel Read & Write, Direct TV Chanel Read & Reply

Page 70

14. Direct TV Chanel Read & Write

When DTV unit (Option unit) is installed, channel settingis read and write directly.

14.1 Direct TV Chanel Read & Reply

1) The controller requests the monitor to read channel information.

Header

 

Message

Check code

 

Delimiter

SOH-'0'-Monitor ID-'0'-'A'-'0'-'6'

 

STX-'C'-'2'-'2'-'C'-ETX

BCC

 

CR

Header

 

 

 

 

 

SOH (01h): Start Of Header

 

 

 

 

 

'0' (30h): Reserved

 

 

 

 

 

Monitor ID: Specify the Monitor ID which you want to get Model Name.

 

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

32h, 43h): Direct TV Channel Read command

 

'C'-'2'-'2'-'C' (43h, 32h,

 

ETX (03h): End of Message

 

 

 

 

 

Check code

 

 

 

 

 

BCC: Block Check Code

 

 

 

 

 

Refer to the section 4.5 “Check code” for a BCC calculation.

Delimiter

CR (0Dh): End of packet

2) The monitor replies the result to the controller.

Header

Message

Check code

Delimiter

SOH-'0'-'0'-Monitor ID-'B'-'1'-'2'

STX-'C'-'3'-'2'-'C'-MajorCH-MinorCH-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".

'1'-'2'(31h, 32h): Message length = 18bytes

Message

STX (02h): Start of Message

'C'-'3'-'2'-'C' (43h, 33h, 32h, 43h): Direct TV Channel read reply command

MajorCH: Major Channel (00000000h – FFFFFFFFh), '0'-'0'-'0'-'0'-'0'-'0'-'0'-'0' 'F'-'F'-'F'-'F'-'F'-'F'-'F'-'F'

MinorCH: Minor Channel (0000h – FFFFh), '0'-'0'-'0'-'0' 'F'-'F'-'F'-'F'

ETX (03h): End of Message

Check code

BCC: Block Check Code

Refer to the section 4.5 “Check code” for a BCC calculation.

Delimiter

CR (0Dh): End of packet

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Contents External Control 10.1 Application RS-232C Remote control II. Preparation Connectors and wiringLAN control Communication timing AsciiCommunication Format Get Parameter Reply MonitorHeader block format fixed length ALLPage ETX Message block formatSTX MSB LSB10/72 Check code SOHDelimiter Message type Get current Parameter from a monitor00h No Error Get parameter replySet parameter ETX MSB LSBSet parameter reply Current conditionCommands Save Current Settings Send 0730h, 37h as Get Timing Report command Get Timing Report and Timing replyNull Message How to change the Backlight setting IV. Control Commands Typical procedure exampleBCC Message Check code Delimiter Header Message Check code Delimiter SOH-0-Monitor ID-0-E-0-A STX-0-2-7-8-0-0-0-1-ETX SOH-0-Monitor ID-0-C-0-6 STX-0-2-7-9-ETX Readout value is 2s complement Operation Code OP code Table Dicom SIMPosition 00h 20h Left side OP code Parameter Remarks Cod Pag Input Resolution DAh Surround HdmiRGB/HV PIPOSD 02h 7Dh None Scart DVI-PCDVI-HD IP ON/PROGRESSIVE‘SURROUND’ Mute Unmute Screen MuteScreen Mute on Screen Mute OFF MTS PIP ON/OFFOP code Parameter Remarks Cod Pag PIP Input 02h 73h No mean Power control procedure Power status readCR 0Dh End of packet 37/72 Power control Controller requests the monitor to control monitor powerDelimiter CR 0Dh End of packet 39/72 Asset Data read and write Asset Data Read Request and replyDelimiter CR 0Dh End of packet 41/72 Asset Data write CR 0Dh End of packet 43/72 Date & Time Read Date & Time read and writeBCC DS-ETX MN Minutes 0-030h, 30h Date & Time Write Check code Delimiter Delimiter CR 0Dh End of packet 48/72 Schedule read and write Schedule ReadB33h, 42h C33h, 43h On timer isnt set Page BCC OFF HOUR-OFF MIN-INPUT-WD-FL-ETX B33h, 42h 59 =3Bh C33h, 43h Off timer isn’t set PG-ON HOURS-ON MIN-OFF HOURS-OFF MIN-INPUT-WD-FL-P Mode Schedule WritePage BCC OFF HOUR-OFF MIN-INPUT-WD-FL-P Mode 57/72 SOH-0-Monitor ID-0-A-0-A STX-C-2-1-5-PG-EN-ETX Delimiter CR 0Dh End of packet 59/72 STX-C-2-1-4-PG-ON HOUR-ON MIN SOH-0-0-Monitor ID-B-1-8 STX-C-3-1-4-ST-PG-ON HOUR-ON MIN 030h, 30h 731h, 37h 23 =17h 831h, 38h Off timer isnt set SOH-0-0-Monitor ID-B-0-C STX-C-3-1-5-ST-PG-EN-ETX Self diagnosis Self-diagnosis status readPage Serial No. & Model Name Read Serial No. ReadModel Name Read Security Lock Security Lock ControlSTX-C-3-1-D-ST-EN-ETX Direct TV Chanel Read & Write Direct TV Chanel Read & ReplyDirect TV Chanel Write & Reply All data are subject to change without notice
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