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2-2. Command Block Format The code from B0 to B7 as described below are transmitted. Transmission from Reception in Reception in the Master side the Master side the Master side (With Data) B0 START CODE : 0xA9 B1 ITEM NUMBER ACK / NAK ITEM NUMBER B2 REPLY B3 SET / GET ACK B4 DATA DUMMY DATA DATA B5 B6 CHECK SUM B7 END CODE : 0x9A B0 START CORD Common in the all FORMAT B6 CHECK SUM B1 to B5 are calculated by OR; 0xA9 1010 1001 0xA9 1010 1001 0xA9 1010 1001 0x9A 1001 1010
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2-3. Block Format Transmission from the Master side Data transmission to the Projector Start of Command B0 START CODE B1 Set the Data Category Value desired. ITEM NUMBER Refer to the Appendix Table 1 for details. B2 SET: 0x00 (Set data) SET / GET B3 GET: 0x01 (Get data) B4 SET: Data to be set (Refer to the Appendix Table 2) DATA GET: Unused. Set Dummy data [0x00, 0x00] B5 Check Sum B6 CHECK SUM B7 End of Command END CODE Receive results of the data transmission from the Projector. Reception in
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2-4. Connection Communication is enabled by the use of a D-Sub 9 Pin cross (reverse) cable. The pin assignment of D-Sub 9 Pin and D-Sub 25 Pin is as follows. D-Sub 9 Pin D-Sub 25 Pin Name FG Grounding for safety protection or cable shield Shell = FG 1 3 2 TxD Transmission data 2 3 RxD Reception data 7 4 RTS Transmission request 8 5 CTS Transmission permission 6 6 DSR Data set ready 5 7 SG GND for signal 1 8 DCD Data channel signal carrier detection 4 20 DTR Data terminal rea
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2-6. Communication Rules . When sending a command from CONTROLLER, the return data from PROJECTOR should be re- ceived first before sending the next command. Even if the next command is sent before receiving the return data, since PROJECTOR will not be able to receive that command, it does not return a response to CONTROLLER. Consequently, no error code is also sent. The following lists the approximate waiting times for PROJECTOR to return the return data after CONTROLLER sends the command. . Wh
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3. NETWORK This section describes the performance, operations and protocol to be used of advertisement and PJ Talk. 3-1. Advertisement The advertisement service is provided to facilitate development of a PC application that can automatically detect a projector on the network. This function is achieved by broadcasting the equipment information periodically to the network. 3-1-1. Function The equipment information shown below is transmitted as the broadcast packet periodically (at certain interval
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3-2. PJ Talk The remote control service is provided that can control the projector from remote location via network. 3-2-1. Function This responds to the control command and requests for acquiring the status and information supplied from clients. Control request Enables the input to be selected and picture control to be adjusted. SIRCS request Enables remote control by sending the SIRCS code. Status request Enables equipment status information such as power status, error information and power-on
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3-3. SDAP Protocol This section describes the SDAP packet structure. Power Header Community Product name Serial No. Location Status (4) (4) (12) (4) (24) (2) Fig.1 Packet structure 1) Header The header consists of ID (16 bit), version (8 bit) and category (8 bits). (Bit position) 0 1 23 0 1 2 3 4567 8 9 0 1234 5 6 7 8 9012 3 4 5 6789 01 “DA” (16) Version (8) Category (8) Fig. 2 Header ID It is fixed to “DA”. Version This indicates the version number of protocol. It is fixed to 01h (version 1). C
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3-4. SDCP Protocol This section describes the packet structure of version 2. Header Community Command Data (n) (2) (4) (4) Fig. 1 Packet structure 3-4-1. Format 3-4-1-1. Header The header consists of version (8 bits) and category (8 bits). 0 1 (Bit position) 0 1 2 3 4567 8 9 0 1234 5 Version (8) Version (8) Category (8) Category (8) Fig. 2 Header structure Version This indicates the version number of protocol. It is fixed to 02h (version 2). Category Category number 0Ah of the projector is enter
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3-4-1-3. Command This section describes the format of the request command and the response command. (Bit position) 0 1 23 0 1 2 3 4567 8 9 0 1234 5 6 7 8 9012 3 4 5 6789 01 Request/Response (8) Request/Response (8) Item No (16) Item No (16) Data Length (8) Data Length (8) (1) Request This section describes the format of the request command that is issued from the host PC to the projector. Community This is the same alphanumeric characters as those of community that is set in the projector to whi
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3-4-1-4. SET Request The SET request is used to set a new value in the specified item. Details of the request and the response are described below. Request Data Data Item No. Request Length SET (00h) Item No. n Set Data (n byte) Response OK (01h) Item No. 0 3-4-1-5. GET Request The GET request is used to acquire the value of the specified item. Details of the request and the response are described below. Request Data Request Item No. Length GET (01h) Item No. 0 Response OK (01h) Item No. n Get D
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3-4-2. Items Category Contents SET GET 00**h Used to control and to change the various setups. OO 01**h Used to acquire the status. O 03**h Used to reset memory. O 17**h Sircs (15 bit category) O 19**h Sircs (20 bit category) O 80**h Used to acquire equipment information. O 90**h Used to acquire network setup information. O 3-4-2-1. Model Dependent Category The supported contents of 00**h, 01**h, 03**h, 17**h and 19**h change depending on the model. Details are shown on Appendix. 3-4-2-2. Equipm
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3-4-2-3. Network Information Acquisition (90**h) Used to acquire the network setup information. Lower bytes Contents SET GET 00h MAC Address O 01h IP Address O 02h Subnet Mask O 03h Default Gateway O 04h DHCP O 0x9000 Mac Address 6 bytes 0x9001 IP Address 4 bytes 0x9002 Subnet Mask 4 bytes 0x9003 Default Mask 4 bytes 0x9004 DHCP 1 byte DHCP invalid: 0 DHCP valid: 1 VPL-VW100 13
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3-4-3. Error Code The error code list is shown below with a detailed description of each. Category Error Error Code Item Error (01**h) Invalid Item 01h Invalid Item Request 02h Invalid Length 03h Invalid Data 04h Short Data 11h Not Applicable Item 80h Community Error (02**h) Different Community 01h Request Error (10**h) Invalid Version 01h Invalid Category 02h Invalid Request 03h Short Header 11h Short Community 12h Short Command 13h Network Error (20**h) Timeout 01h Comm Error (F0**h) Timeout 0
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3-4-3-1. Item Error This error occurs when the Item No. of a request is illegal or its data is illegal. The conditions for occur- rence of the respective errors are shown below. Invalid Item An unsupported Item No. is specified. Example 1: The unsupported category 0xA** is specified. Example 2: The unsupported Item No. 0x8010 is specified. Invalid Item Request The Item No. is supported but an unsupported Request is issued. Example: An attempt is made to set data in the Model Name (0x8001). Inval
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3-4-3-3. Request Error This error occurs when header or command is illegal. The conditions of occurrence of the respective errors are shown below. Invalid Version The version of the header is other than 2. n When another version is supported, an error occurs in all versions other than the supported version. Invalid Category The category does not match. Example: 0x0B is specified in the device of category = 0x0A. Invalid Request An unsupported request is specified. Example: Request = 0x02 is spec
