Samsung SP2553XWCX/EN, SP2253XWCX/EN manual RS232C Command Table, Serial Communication Protocol

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6-2 RS232C Command Table

Communication Format (Complies with the RS232C Standard)

Baud rate : 9,600 bps

parity : None

Data bits : 8, stop bit : 1

Flow Control : None

Serial Communication Protocol

1.Command Packet Structure [7bytes]

0x08

0x22

cmd1

cmd2

cmd3

value

CS

 

 

 

 

 

 

 

A command packet consists of 7 bytes in total.

The two bytes 0x08 and 0x22 signify that the packet is for serial communication.

The following 4 bytes represent a pre-defined command that can be defined by the user.

The last byte is the checksum which checks the validity of the current packet.

Header [2 Byte]: Pre-defined values fixed to 0x08 and 0x22.

Cmd1 [1 Byte]: The first value of the code defined in the command list (Hexadecimal)

Cmd2 [1 Byte]: The second value of the code defined in the command list (Hexadecimal)

Cmd3 [1 Byte]: The third value of the code defined in the command list (Hexadecimal)

Value [1 Byte]: Input parameter for the command (Default: 0) (Hexadecimal)

CS [1 Byte]: Checksum (the 2’s complement of the sum of all the values except for the CS value.)

2.Response Packet Structure [3 Bytes] 1. Success

0x03

2.Fail

0x0C

0xF1

0x030x0C0xFF

When the received packet from an external device has a valid value, a Success packet is sent. Otherwise, a Fail packet is sent.

A Fail packet is sent if:

The received packet length is not equal to 7 bytes.

The 2 byte packet header value is not equal to 0x08, 0x22.

The check sum is incorrect.

Failure detection by an external device

An external device classifies the packet as Fail if it does not receive a Success packet within 100ms.

6-2

More Information

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Contents LCD Projector Table Of Contents More Information Before You Start Using this ManualIcons used in this manual Copyright NoticeCare and Maintenance Cleaning the Surface and the LensCleaning Inside the Projector Icons used for safety precautions Safety PrecautionsPower Related Meaning of SignsInstallation Related Usage Related Major Safety Precautions Major Safety Precautions Package Contents Installation and ConnectionInstalling the Projector Leveling with Adjustable Feet Zoom and Focus Adjustment 45.7 Screen Size and Projection Distance487.7 Lamp Replacement Procedure Lamp ReplacementModel Lamp Model NameVentilation openings Replacing and Cleaning the FilterAir intake vent Icon Name Rear SidePC Timing D-Sub/HDMI Supported Display ModesAV Timing D-Sub Format Resolution ScanAV Timing Hdmi EIA-861 Format1 640 xAV Timing Video Connecting the Power Setting up the PC Environment Connecting with a PC and Setting up the PCConnecting with a PC Connecting a PC using an HDMI/DVI cable Connecting a PC using an HDMI/DVI cableConfiguring the Audio Settings for Your PC Installation and Connection Connecting an HDMI-Compatible Device Connecting an AV device using a D-Sub cable Connecting an AV device with Component output Connecting using a Video cable Connecting an External Speaker Connecting to a Dynamic IP Dhcp Network Connecting to a NetworkTo use the network function, Network must be set to On Connecting to a Static IP NetworkLocking the product Kensington Lock slotProduct Features UsingIcon Name Description Front, UpperRemote Control Installing Batteries in the Remote Control LED Indications LED IndicationsStatus Lamp Stand by Classifica State Measures Tion Clearing Indicator ProblemsInput Using the Screen Adjustment Menu OSD On Screen DisplayPicture Menu SUB-MENUGame mode, the text in still pictures will appear unnatural This function does not work in Media Play mode Setup Usage Option SettingDisplayed for 1 minute whenever the projector is turned on Network Management Management using the Web BrowserProjector Management using PC Software Using Icons Status State Action High. The projector is turned off automati Mute Off/Mute On Mutes the sound of a projector on/ off Work Sets Source switch or Power On/Power Off Using Connecting a USB Storage Device and Precautions Connecting a USB DevicePrecautions for using a USB storage device Media Play Function Documents Menu displayed when you are viewing a documentMenu displayed from the Documents screen Menu Item DescriptionRotate EncodingVideo Clip Media Play Function Play Mode PhotoMenu displayed from the Photo Thumbnails screen Slideshow Setting SlideshowAspect Ratio Background Music Music Menu displayed from the Music List screenPlay Music All music Plays all available music files Movie Menu displayed from the Movie List screenPlay Movie Subtitle Setting Settings Tact Samsung via Email vdswmanager@samsung.com Update/ResetFirmware Update Before Software UpgradeTo upgrade software Supported File Formats Supported File FormatsFile Extension Supported FormatName File Extension Format Before Requesting Service Screen ExternalSource Check whether the correct network card in the PC has been NetworkFunction Media PlaySpecifications SP-M206 / SP-M226 / SP-M256Model SP-M275 SP-M305 SP-M275 / SP-M305RS232C Command Table Communication Format Complies with the RS232C StandardSerial Communication Protocol Control Item CMD1 CMD2 CMD3 Value Command TableControl Item CMD1 CMD2 CMD3 Value IRE/NOR ECO Control Item CMD1 CMD2 CMD3 Value ไทย Control Item CMD1 CMD2 CMD3 Value North America Contact Samsung WorldwideLatin America EuropeCIS Middle East Asia PacificAfrica Correct disposal of batteries in this product Europe only Correct Disposal Europe only
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