Overview. Message Format. Serial Communications INSTRUCTIONS

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1 Introduction The following document explains external serial communications (RS-232) and commands for programming and controller applications. It applies to the following GraphXMASTER products with the latest software upgrade PP52+MP30: RPMX-100U (38-GFX101-XX) CX50-100U (38-GFX003-XX) CX60-100U (38-GFX004-XX) CX67-100U (38-GFX005-XX) Overview RS-232 serial communications allows simultaneous interfacing and control of one or more projectors and accessories by an external controller or simple ASCII terminal. Once connected to the RS-232 port of the projector, controllers can access projector controls and setups, issue commands or queries and receive replies. This bi-directional communication is useful for: Downloading projector software upgrades Controlling multiple projectors Automating events on the projector (source switching, adjustments etc.) Diagnosing certain performance problems Obtaining projector status Message Format All serial communication passes in and out of the projector in messages. For example, to set the Contrast level to a specific value the controller sends a set message to the projector. To read the current value of a parameter the controller sends a request message asking for the information the projector then returns the data in a reply message. These messages use simple ASCII characters normal letters, numbers and punctuation and consist of a three-letter command code and any accompanying data. Opening and closing round brackets (parenthesis) indicate the beginning and the end of a message (shown below). (CON128) The three letter commands sent to the projector can be uppercase, lowercase or a mixture of both. For example, the contrast command CON, con, and con are all the same. Replies from the projector are always uppercase. This simple protocol can be used with a straightforward connection between a single projector and controller. It can also be used when several projector are connected together in a network. All projectors in the network will respond to the command at the same time. Examples: Set Contrast to a value of 75: (CON75) Request the current Contrast setting: (CON?) (12/05) 1 of 8 Pages Legacy: P

2 Reply sent by projector: (!127) Sending messages to a single projector or all projectors in a network Single Projector To address specific projectors in a network, each projector must first be assigned a unique 2-digit projector ID number (also call an address). This can be done through the on-screen menu or using the serial command ADR. When a message is sent with an address each projector (in the network) will compare it to its own address assigned to it by the user. If there is a match, the message gets processed. If not, the message gets passed along to the next projector in the network. Example #1: Turn projector #5 ON: (5PWR1) where 1 = ON Message for Specific Projector ( Addr Code Data ) NOTES: 1) Projectors can only receive set commands in a traditional daisy-chain configuration. In order to query individual projectors and receive replies, an RS232 switcher must be used with a connection made to each individual projector. Consult the User s Manual for connection details. 2) Do not leave spaces between the address, code or data, unless specified in the Table of Messages on the following pages. All Projectors When a message is sent without a specific address it is processed and passed along to the next projector in the chain allowing it to be broadcast to all projectors. If you have more than one controller on the network, messages must contain a source address as well as a destination address. The source address is placed after the destination address (separated by a space) and before the command. With a single controller on the network a source address is not required (12/05) 2 of 8 Pages

3 Default RS-232 Setup Values When connecting your controlling device (PC) to the projector for RS-232 communication use a 9-pin straight through serial cable and ensure the controlling device (PC) has the following setup values: Baud Rate Data Bits 8 Stop Bit 1 Parity None Flow Control None Consult the User s Manual for details on how to connect the controlling device and projector for successful RS-232 communication (12/05) 3 of 8 Pages

4 Table of Messages The following table includes all RS-232 commands used to communicate with the projector. NOTES: 1) Commands marked with an asterisk * cannot be used as request commands. 2) Commands marked with a symbol are request commands only and cannot be used to set values. 3) Replies from the projector will not include the command or address. FUNCTION Adjust Color Temperature ASCII CODE CTM PARAMETERS DESCRIPTION/NOTES EXAMPLES Broadcast To ID 01 P1: 0 = red 1 = green 2 = blue P2: 1_4_ = User 1 1_5_ = User 2 P3: Auto Input Level AIL P1: 0 = Disable 1 = Enable Adjusts color temperature. NOTE: A space required between code and data. The _ represents a space in the examples. Monitors input signal levels and adjusts input offset or gain when the white and black levels become crushed. Auto Setup * ASU The projector will automatically adjust as many parameters as possible for optimal setup (of the current source). Baud Rate BDR P1: 12 = 1200 Sets the baud rate. 24 = = = Blue Black Levels BLB P1: Adjusts blue black level for a specific source. Default value 128. Blue Input Drive BLD P1: Adjusts blue input drive level for a specific source. Default value 128. Blue Primary Adjust Red Green Blue BPR BPG BPB Adjusts level of red, green and blue for blue primary. Request Reply (CTM_0_1_4_127) (01CTM_0_1_4_127) (CTM?) (!_0_1_4_127) (AIL0) (01AIL1) (AIL?) (!1) (ASU) (BDR96) (01BDR96) (BDR?) (!96) (BLB128) (01BLB128) (BLB?) (!128) (BLD128) (01BLD128) (BLD?) (!128) (BPR100) (01BPR100) (BPR?) (!100) Brightness BRT P1: Sets image brightness. (BRT128) (01BRT128) (BRT?) (!128) Change Lamp * LPC P1: serial number Max. 13 characters Use to enter the serial number of a new lamp. Must not exceed 13 characters. Color CLR P1: Sets color intensity for video images. Color Coordinate Adjust CCA P1: 0 = Enable 1 = Disable Enable or Disable primary color adjustment. (LPC ) (CLR127) (01CLR127) (CLR?) (!127) (CCA0) (01CCA0) (CCA?) (!0) Contrast CON P1: Sets the contrast. (CON128) (01CON128) (CON?) (!128) Detail DTL P1: 0-6 Use to set the detail for video images. Freeze Image FRZ P1: 0 = Disable (default) 1 = Enable Use to freeze or unfreeze the image. (DTL3) (01DTL3) (DTL?) (!3) (FRZ0) (01FRZ0) (FRZ?) (!0) (12/05) 4 of 8 Pages

5 FUNCTION ASCII CODE Gamma GAM P1: 0 = Photographic (detail) 1 = Enhanced Photographic 2 = Enhanced Graphics/Video 3 = Max Brightness PARAMETERS DESCRIPTION/NOTES EXAMPLES Broadcast To ID 01 Use to select a gamma curve to improve the performance for different applications and with different kinds of source input. Green Black Levels GNB P1: Adjusts green black level for a specific source. Default value = 128. Green Input Drive GND P1: Adjusts green input drive level for a specific source. Default value = 128. Green Primary Adjust Red Green Blue GPR GPG GPB H-Position HOR P1: for RGB Or 0-20 for Video Adjusts level of red, blue and green for green primary. Adjusts horizontal position of the image. Replies for RGB input:!0 200 Replies for Video input:!0 20 Request Reply (GAM0) (01GAM0) (GAM?) (!0) (GNB128) (01GNB128) (GNB?) (!128) (GND128) (01GND128) (GND?) (!128) (GPR100) (01GPR100) (GPR?) (!100) (HOR50) (01HOR50) (HOR?) (!50) Horizontal HFQ Frequency Image Orientation SOR P1 : 0 = Front 1 = Rear (default) 2 = Inverted Front 3 = Inverted Rear Input Select SIN P1: _0_0 = Analog BNC _0_1 = Analog Dsub (default) _0_2 = Digital DVI _0_3 = Composite _0_4 = S-Video Input Video Black VBL P1: 0 = 0 IRE (default) 1 = 7.5 IRE Request projector s horizontal frequency. Range: 15 80_[- or +] Specifies image orientation. Tells the projector to look at a specific input for the source. NOTE: A space is required between the code and data. The _ represents a space in the examples. Adjusts black level for video signals. Lamp History LHT Request lamp history. Return message includes the lamp serial number followed by the number of hours in use. Data for more than one lamp shown. All separated by space. Lamp Hours LHR Request current lamp hours. Range between Language LNG P1: 1 = English (default) Select desired menu language. 2 = Francais 3 = Espanol 4 = Deutsch 5 = Italiano 6 = Chinese LED Status Power LED Fan LED Lamp LED LPW LFN LLP Request LED color status. Will return current color of LED - R = red, G = green, B = blue Menu H-Position MSH P1: 0 = Moves the menu horizontally. Default value = 0. Menu V-Position MSV P1: 0 = Moves the menu vertically. Default value = 0. (HFQ?) (!15) (SOR1) (01SOR1) (SOR?) (!1) (SIN_0_1) (01SIN_0_1) (SIN?) (!_0_1) (VBL0) (01VBL0) (VBL?) (!0) (LHT?) (! _890_ _1200) (LHR?) (!100) (LNG1) (01LNG1) (LNG?) (!1) (LPW?) (LPW!G) (LFN?) (LFN!G) (LLP?) (!B) (MSH0) (01MSH0) (MSH?) (!0) (MSV0) (01MSV0) (MSB?) (!0) (12/05) 5 of 8 Pages

6 FUNCTION ASCII CODE PARAMETERS DESCRIPTION/NOTES EXAMPLES Broadcast To ID 01 Number of Columns TNC P1: 1-6 (default = 1) Number of columns in a tiled array. Columns are numbered from left to right. Request Reply (TNC5) (01TNC5) (TNC?) (!5) Number of Rows TNR P1: 1-6 (default = 1) Number of rows in tiled array. Rows are numbered from top to bottom. Pixel Phase PXP P1: 0-31 Adjust the position of the sampling clock relative to the video data. Pixel Track PXT P1: Range depends on the timing of the incoming source Power On/Off PWR P1: 0 = Off (default) 1 = On Number of pixels/line in the image. Use to power the projector ON or OFF. The reply message (PWR!2) indicates the projector is initializing. Projector Column TCW P1: 1-6 (default = 1) Sets the column number of the projector as it is positioned in a tiled array. Projector Model SMD P1: model Max 10 characters Use to enter projector model number. Must not exceed 10 characters. Projector model can be found on license label. Projector ID Number ADR P1: 0 99 Use to assign a 2-digit projector ID (address). Default ID is 99. (TNR5) (01TNR5) (TNR?) (!5) (PXP31) (01PXP31) (PXP?) (!31) (PXT1344) (01PXT1344) (PXT?) (!1344) (PWR1) (01PWR1) (PWR?) (!1) (TCW1) (01TCW1) (TCW?) (!1) (SMD123123) (01SMD123123) (SMD?) (!123123) (ADR99) (ADR?) (!99) Projector Row TRW P1: 1-6 (default = 1) Sets the row number of the projector as it is positioned in a tiled array. Rows are numbered from top to bottom. Projector Serial Number SSN P1: serial number Max 13 characters Use to enter projector serial number. Must not exceed 13 characters. Serial number can be found on license label. Red Black Levels RDB P1: Adjusts red black level for a specific source. Default value = 128. Red Input Drive RDD P1: Adjusts red input drive level for a specific source. Default value = 128. Red Primary Adjust Red Green Blue RPR RPG RPB Resize Presets SZP P1: 0 = Factory default (default) 1 = No resizing 2 = Full screen 3 = Full width 4 = Full height 5 = Anamorphic 6 = Tiled full size 7 = Tiled full width 8 = Tiled full height 9 = Tiled anamorphic Adjusts level of red, blue and green for red primary. Sets the image to one of several size and position presets. (TRW1) (01TRW1) (TRW?) (!1) (SSNAABBCCDD) (01SSNAABBCCDD) (SSN?) (!AABBCCDD) (RDB128) (01RDB128) (RDB?) (!128) (RDD128) (01RDD128) (RDD?) (!255) (RPR100) (01R100) (RPR?) (!100) (SZP0) (01SZP0) (SZP?) (!0) Resolution RES Request projector resolution. (RES?) (!1024x768) (12/05) 6 of 8 Pages

7 FUNCTION Select Color Temperature ASCII CODE SCT PARAMETERS DESCRIPTION/NOTES EXAMPLES Broadcast To ID 01 P1: 0 = 3200K 1 = 5400K 2 = 6500K (default) 3 = 9300K Use to select a predetermined color temperature or to specify a color temperature directly. See also Adjust Color Temperature (CTM). Request Reply (SCT2) (01SCT2) (SCT?) (!2) Size SIZ P1: Horizontal resolution value. Controls how the projector will electronically expand or shrink the image. System Error SYS Request current system error. Test Pattern (internal) ITP P1: 0 = Off (default) Displays an internal test pattern. 1 = Checker 2 = Gray 16 3 = Gray = White 5 = Gray 6 = Black 7 = Color Bars 8 = Geometry (SIZ1024) (01SIZ1024) (SIZ?) (!1024) (ITP7) (01ITP7) (ITP?) (!7) Tint TNT P1: Sets tint for video images. (TNT127) (01TNT127) (TNT?) (!127) Vertical Frequency VFQ Request projector s vertical (VFQ?) (!15) frequency. Range: 50-85_[- or +] Vertical Stretch VST P1: 0-9 Vertical resolution value. (VST350) (01VST350) (VST?) (!350) Video Standards STD P1: 255 = Auto (default) 1 = NTSC 2 = NTSC44 3 = PAL 4 = PAL_M 5 = PAL_NC 6 = SECAM V-Position VRT P1: 0-60 for RGB Or 0-20 for Video White Boost WBT P1: 0 = Off 1 10 = On/Level Select the video standard for use with the selected video input. Adjusts vertical position of the image. Replies for RGB input:!0 60 Replies for Video Input:!0 20 Use to set the value for white boost. Whites that are near full white are boosted to full white. Default value = 10. (STD255) (01STD255) (STD?) (!255) (VRT20) (01VRT20) (VRT?) (!60) (WBT10) (01WBT10) (WBT?) (!10) (12/05) 7 of 8 Pages

8 Technical Support NORTH AMERICA 809 Wellington St. North Kitchener, Ontario, Canada N2G 4Y7 Tel (General) Toll Free (Technical Support) Fax (Service) Camden Drive Cypress, CA USA Tel (General) Toll Free (Technical Support) Fax (Service) View Point 200 Ashville Way Wokingham, Berkshire RG41 2PL United Kingdom Tel Fax EUROPE Willicher Damm 129 D Mönchengladbach Germany Tel Fax , av Georges Pompidou Levallois-Perret Cedex France Tel. +33-(0) Fax +33-(0) A Aljunied Road # Biz Tech Centre Singapore Tel Fax ASIA-PACIFIC / OTHER Rm Shartex Plaza No. 88 Zun Yi South Road Shanghai, People s Republic of China Tel Fax CHRISTIE Sales (Canada) CHRISTIE Sales (U.S.) Tel Tel or Fax Fax (12/05) 8 of 8 Pages