NEC RS-232C user manual Code

Page 14

The following shows the procedure for reading the temperatures from the sensors.

Step 1. Select a temperature sensor which you want to read.

Header

Message

Check

Delimiter

code

SOH-'0'-Monitor ID-'0'-'E'-'0'-'A'

STX-'0'-'2'-'7'-'8'-'0'-'0'-'0'-'1'-ETX

BCC

CR

Header

SOH (01h): Start of Header

'0' (30h): Reserved

Monitor ID: Specify the Monitor ID which you want to get a value. Ex.) If Monitor ID is '1', specify 'A'.

'0' (30h): Message sender is the controller.

'E' (45h): Message Type is "Set parameter command".

'0'-'A' (30h, 41h): Message length is 10 bytes.

Message

STX (02h): Start of Message

'0'-'2' (30h, 32h): Operation code page number is 2.

'7'-'8' (37h, 38h): Operation code is 78h (on page 2).

'0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Select the temperature sensor #1 (01h). 00h: No meaning

01h: Sensor #1

02h: Sensor #2

03h: Sensor #3 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

Step 2. The monitor replies for confirmation.

Header

Message

Check

Delimiter

code

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

STX-'0'-'0'-'0'-'2'-'7'-'8'-'0'-'0'-'0'-'0'

BCC

CR

-'0'-'3'-'0'-'0'-'0'-'1'-ETX

Header

SOH (01h): Start of Header

'0' (30h): Reserved

'0' (30h): Message receiver is the controller.

Monitor ID: Indicates a replying Monitor ID.

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

'F' (46h): Message Type is "Set parameter reply".

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

Message

STX (02h): Start of Message

'0'-'0' (30h, 30h): Result code. No error.

'0'-'2' (30h, 32h): Operation code page number is 2.

'7'-'8' (37h, 38h): Operation code is 78h (in the page 2).

'0'-'0' (30h, 30h): This operation is "Set parameter" type.

'0'-'0'-'0'-'3' (30h, 30h, 30h, 33h): Number of temperature sensors are 3 (0003h).

'0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): temperature sensor is #1.

ETX (03h): End of Message

Check code

BCC: Block Check Code

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

(14/50)

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Contents Communication Parameter Connectors and wiringApplication Communication Format Header block format fixed lengthALL ETX Message block formatSTX STX ETX MSB LSBSOH Check codeMSB LSB Delimiter Following is an example of a Check code BCC calculationMessage type Get current Parameter from a monitorSet parameter Set parameter reply Current conditionGet Timing Report and Timing reply CommandsSave Current Settings MSB LSB ETXNull Message Typical procedure exampleHow to change the Brightness setting BCCHeader Message Check code Delimiter Message Check code Delimiter Code STX-0-0-0-2-7-9-0-0 Power control procedure Power status readPower control Controller requests the monitor to control monitor powerAsset Data read and write Asset Data Read Request and replyAsset Data write BCC DS-ETX Date & Time read and writeDate & Time Read Date & Time Write Check code Delimiter Schedule read and write Schedule ReadSTX-C-3-2-1-PG-ON HOUR-ON MIN Page BCC OFF HOUR-OFF MIN-INPUT-WD-FL-ETX B33h, 42h 59 =3Bh C33h, 43h Off timer isn’t set Schedule WritePG-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 Self-diagnosis status readST Result of self-tests 0-030h, 30h00 Normal Model Name Read Serial No. & Model Name ReadSerial No. Read Security Lock Security Lock Control930h, 39h Page Dicom SIM ISFAdjust Surround HdmiPIP POPRGB/HV OSD Option Ntsc SyncDVI-PC DVI-HD SecamPIP ON/OFF All data are subject to change without notice
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