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Instruções de Operação Denso, Modelo BHT-100B

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Requests abort of transmission (Phase 2). ENQ 05h Enquiry Requests establishment of a data link (Phase 1). Prompts the receiver to respond to the sent text (Phase 2). ACK 06h Acknowledge Acknowledgment response to ENQ (Phase 1). Acknowledgment response to text (Phase 2). Acknowledgment response to EOT (Phase 3). NAK 15h Negative Acknowledge Negative acknowledgment response to ENQ (Phase 1). Negative acknowledgment response to text (Phase 2). ¦ Transparency The BHT uses the non-transparent mode which handles the control characters and codes (e.g., STX, ETX, and SOH) as starting or ending markers and does not allow them to be transmitted as normal data in the transmission texts. 117 (2) (2) The text control characters are used to format transmission texts. In the BHT-protocol, they include the following headers and a terminator. Symbol Value Meaning Function SOH 01h Start Of Heading Indicates the start of heading text (Phase 2). STX 02h Start of Text Indicates the start of data text (Phase 2). ETX 03h End of Text Indicates the end of data text (Phase 2). You may designate values of headers and a terminator with the protocol functions in BHT-BASIC. If you designate none of them in a user program, the BHT may apply those as listed above. Refer to the "BHT-BASIC Programmer's Manual (BHT-100 series)." 118 Chapter 3. Communications Operations of the BHT-100Q/100B Chapter 3. Communications Operations of the BHT-100Q/100B 3 ] Basic Format of Transmission Messages Basically, the BHT transmits data as units of a file. First, it transmits a heading text which includes the attribute information of a file (e.g., file name and the number of data texts) to be transmitted. Following the heading text, it transmits the data text in the file. A heading text and data text comprise a text. In actual text transmission, the text is divided into several blocks, then a header and terminator are added to each block. If the serial number management or error checking by BCC (Block Check Character) is required, the serial number or BCC is also added to each block, respectively. This procedure forms a transmission block. A set of transmission blocks makes up one transmission message. Shown below is an example of a transmission message formed with the BHT-protocol. Data text 2 Data text 1 Data text n Text Heading text Transmission block Transmission S T X Serial number (5 bytes) Data text 1 E T X B C C Transmission block Message Transmission block S E B O Heading text T C H X C S T X Serial number Data text n E T X B C C In the above figure, SOH, STX, and ETX are text control characters as described in [ 2 ] Control Characters, (2). A serial number is expressed by a five-digit decimal number, starting from 00001 to 32767, and identifies transmitted data texts. For the BCC, refer to Appendix B, B.1, "BHT-protocol," [ 3 ]. 119 [[ Text should be formatted according to the standard of the BHT-protocol before transmission. Shown below are two types of the standard text formats for program files and data files. ¦ Program Text Format (1) Heading text Byte position 1 23 4 567 8 910111213141516 17 3 4 00 0 0 0 0 The program file name should be a maximum of 12 characters in length and it consists of FILE NAME and .EXTENSION. The FILE NAME should be 1 to 8 characters. The EXTENSION should be .PD3 (.FN3 and .EX3 may be available for future functional expansion). The number of data texts should be 0 to 32767. If it is less than 5 digits, the upper blank bytes will be filled with zeros (0). If the program file name is less than 12 characters in length, the lower blank bytes will be filled with space characters. Program data 128 bytes if extension is .PD3; 130 bytes if it is .FN3 or .EX3. 128 or 130 PR O G 1 . P D 3 0 0 5 23 Program file name (12 bytes) Number of data texts contained (5 bytes) Example of contents (2) Data text Byte position 12 Example of contents Object file (compiled from a source If a program data field program file having one of the is less than the extensions .PD3, .FN3, and .EX3.) maximum digits in length, the lower blank bytes will be filled with zeros (0). 120 Chapter 3. Communications Operations of the BHT-100Q/100B Chapter 3. Communications Operations of the BHT-100Q/100B Data Text Format (1) Heading text Byte position Example of contents Length of data field n (2 bytes) MA ST ER DA T 00592 n 06 10. Number of data texts contained (5 bytes) Data file name (12 bytes) 123456789 The data file name should be a maximum of 12 characters in length and it consists of FILE NAME and .EXTENSION. The FILE NAME should be 1 to 8 characters. The EXTENSION should be other than .PD3, .FN3, and .EX3, and it may be omitted (together with a period). Number of fields (2 bytes) Length of data field 1 (2 bytes) 101112131415161718192021 The number of data texts should be 0 to 32767. If it is less than 5 digits, the upper blank bytes will be filled with zeros (0). If the data file name is less than 12 characters in length, the lower blank bytes will be ...

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Scanner / Copiadora / MFP - BHT-100Q (2.52 mb)

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