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NEC RS-232C user manual Select a temperature sensor which you want to read

Models: RS-232C

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

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.

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NEC RS-232C user manual Select a temperature sensor which you want to read

Contents

3.1 RS-232C Remote control 2. Connectors and wiring2.1 RS-232C Remote control 1. Application4. Communication Format 4.1 Header block format fixed length3rdbyte Destination Destination equipment ID. Receiver Check code Delimiter 4.2 Message block formatHeader MessageCheck code 4.5 Check codeHeader Message DelimiterMessage 4.6 DelimiterHeader Check code5.2 Get parameter reply 5. Message type5.1 Get current Parameter from a monitor 5.3 Set parameter 5.4 Set parameter reply 5.5.2 Get Timing Report and Timing reply 5.5 Commands5.5.1 Save Current Settings 5.5.3 NULL Message 6. Typical procedure example6.1. How to change the “Brightness” setting SOH-0-0-Monitor ID-D-1-2 Page Step 1. Select a temperature sensor which you want to read Delimiter CR 0Dh End of packet 7. Power control procedure 7.1 Power status read7.2 Power control 1 The controller requests the monitor to control monitor power8. Asset Data read and write 8.1 Asset Data Read Request and reply8.2 Asset Data write 9. Date & Time read and write 9.1 Date & Time Read1 The controller requests the monitor to write Date & Time This command is used in order to write the setting of the Date & Time9.2 Date & Time Write Message STX 02h Start of Message 10.1 Schedule Read This command is used in order to read the setting of the Schedule10. Schedule read and write 0-830h, 38h Message length Message STX 02h Start of Message 0-130h,31h VGA 0-230h,32h RGB/HV 0-330h,33h DVI 0-530h,35h Video1 Page 10.2 Schedule Write This command is used in order to write the setting of the Schedule 1 The controller requests the monitor to write ScheduleEX 0-130h, 31h Monday 0-430h, 34h Wednesday 2 The monitor replies a data for confirmation Page SOH-0-0-Monitor ID-B-0-C STX-C-3-1-5-ST-PG-EN-ETX1 The controller requests the monitor to write Schedule bit 4 Friday bit 5 Saturday bit 6 Sunday EX 0-130h, 31h Monday 1-731h, 37h 23 =17h 1-831h, 38h Off timer isnt set 11.1 Self-diagnosis status read This command is used in order to read the Self-diagnosis status11. Self diagnosis SOH 01h Start of Header 0 30h Reserved 12. Serial No. & Model Name Read This command is used in order to read a serial numberThis command is used in order to read the Model Name 12.1 Serial No. Read13. Security Lock 13.1 Security Lock ControlP1 Security Pass code 1st 0-030h, 30h SOH-0-MonitorID-0-A-1-0STX-C-2-1-D-EN-P1-P2-P3-P4-ETX P2 Security Pass code 2nd 0-030h, 30h0-130h, 31h Error C-3-1-D 43h, 33h, 31h, 44h Security Lock Control reply commandST-EN Lock condition result data ST Status 0-030h, 30h No error ETX 03h End of Message Check code BCC Block Check CodeAppendix A. Operation Code OP code TableADJUST AUDIO SCHDULEPage Information OSD OSD timer secondsMenu tree reset OSD Transparency7 Autooffset OptionAdvanced Terminate Temperature sensor Carbon footprint50/50 All data are subject to change without noticeRevised at Mar.25/2010