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NEC RS-232C user manual Delimiter, Header, Message, Check code

Models: RS-232C

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4.6 Delimiter

Following is an example of a Check code (BCC) calculation.

Header

Message

Check

Delimiter

SOH

Reserved

Destination

Source

Message

Message length

STX

OP code

OP code

Set Value

ETX

code

(BCC)

Address

Address

type

page

01

30

41

30

45

30

41

02

30

30

31

30

30

30

36

34

03

77

0D

D0

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12

D13

D14

D15

D16

D17

D18

Check code (BCC) D17 = D1 xor D2 xor D3 xor … xor D14 xor D15 xor D16

=30h xor 41h xor 30h xor 45h xor 30h xor 41h xor 02h xor 30h xor 30h xor 31h xor 30h xor 30h xor 30h xor 36h xor 34h xor 03h

=77h

4.6 Delimiter

Header

Message

Check code

Delimiter

Packet delimiter code; ASCII CR(0Dh).

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Image 6

NEC RS-232C user manual Delimiter, Header, Message, Check code

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. Message type 5.1 Get current Parameter from a monitor5.2 Get parameter reply 5.3 Set parameter 5.4 Set parameter reply 5.5 Commands 5.5.1 Save Current Settings5.5.2 Get Timing Report and Timing reply 6. Typical procedure example 6.1. How to change the “Brightness” setting5.5.3 NULL Message 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 ReadThis command is used in order to write the setting of the Date & Time 9.2 Date & Time Write1 The controller requests the monitor to write Date & Time Message STX 02h Start of Message This command is used in order to read the setting of the Schedule 10. Schedule read and write10.1 Schedule Read 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 This command is used in order to read the Self-diagnosis status 11. Self diagnosis11.1 Self-diagnosis status read 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 TransparencyOption Advanced7 Autooffset Terminate Temperature sensor Carbon footprintAll data are subject to change without notice Revised at Mar.25/201050/50