DensoメーカーBHT-7500Sの使用説明書/サービス説明書
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User's Manual.
Copyright © DENSO WAVE INCORPORATED, 2002 All rights reserved. No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher.
i Pr eface Please READ through these operating instructions carefully. It will enable you to operate your BHT-7500/7500S/7500W correctly. After you have finished reading the instructions, keep this manual handy for speedy reference.
ii How this book is organized This manual is made up of five chapters and appendices. Chapter 1. Quick Guide Describes the basic operating method of the BHT and the related notes.
iii ■ Technical Terms Used in This Manual Source Program and Object Program (User Program) Generally, a source program is translated into an object program by a compiler. This manual calls an object program a user program. BHT-BASIC This manual expresses BHT-BASIC3.
iv SAFETY PRECAUTIONS Be sure to observe all these safety precautions. ■ Please READ through this manual carefully. It will enable you to use the BHT and CU correctly.
v W ARNING Handling the battery cartridge • Never disassemble or heat the battery cartridge, nor put it into fire or water; doing so could cause battery-rupture or leakage of battery fluid, resulting in a fire or bodily injury.
vi W ARNING • Do not look into the laser beam source through the reading window or point the reading window towards the eyes. The laser beam emitted through the reading window is harmful to the eyes. • Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation expo- sure.
vii CAUTION Basic handling tips • Never put the BHT in places where there are excessively high temperatures, such as inside closed-up automobiles, or in places exposed to direct sunlight. Doing so could affect the housing or parts, resulting in a fire.
viii CAUTION • If you drop the BHT so as to damage its hous- ing, immediately turn off the power, pull out the rechargeable battery cartridge or dry bat- tery cartridge, and contact your nearest dealer.
ix CAUTION • Never cover or wrap up the CU or AC adapter in a cloth or blanket. Doing so could cause the unit to heat up inside, deforming its hous- ing, resulting in a fire. Always use the CU and AC adapter in a well-ventilated area. • Do not place the CU anyplace where it may be subjected to oily smoke or steam, e.
x ■ Proper Care of the BHT and CU Clean the housings, battery cartridge terminals, and CU-7001 charge terminals with a dry, soft cloth. Before cleaning, be sure to turn the BHT power off and unplug the AC adapter of the CU. • Never use benzene, alcohol, or other or- ganic solvents.
xi Labeling $92,'(;32685(/$6(5/,*+7,6(0,77(')5207+,6$3(5785( /$6(5/,*+7'212767$5(,172%($0 P:0$;,080287387QP/$6(5 &am.
xii BHT -7500S US and Canada Regulations This device complies with Part 15 of the FCC Rules, Canadian ICES-003 and RSS-210 Rules. Operation is subject to the following two conditions: (1) this device .
xiii Labeling BHT -7500S $92,'(;32685(/$6(5/,*+7,6(0,77(')5207+,6$3(5785( /$6(5/,*+7'212767$5(,172%($0 P:0$;,080287387Q.
xiv BHT -7500W Declaration of Conformity (For European Union) The radio frequency module that comlies with the Directive 99/5/EC(R&TTE) is mounted on this device (BHT-7500W).
xv Labeling BHT -7500W $92,'(;32685(/$6(5/,*+7,6(0,77(')5207+,6$3(5785( /$6(5/,*+7'212767$5(,172%($0 P:0$;,080287387QP.
Content Overviews Preface ................................................................................................................................. i How this book is organized ..................................................................
3.3 RS-232C Interface Specifications ............................................................................. 127 3.4 Basic Communications Specifications and Parameters ........................................ 129 3.4.1 Basic Communications Specifications .
Chapter 1. Quick Guide Chapter 2. Getting Started the BHT and System Mode Chapter 3. Communications Operations of the BHT Chapter 4. Error Messages Chapter 5.
1 Chapter 1. Quick Guide Chapter 1 Quick Guide This chapter describes the basic operating method of the BHT and the related notes. 1.1 Reading Bar Codes ..................................................................................................
2 • If the BHT fails to read due to specular effects or other factors, change the scanning angle of the reading win- dow or the distance from codes as shown at right, and try it again. (Specular effects occur when the reflec- tion of the light from the bar code becomes exces- sively strong.
3 Chapter 1. Quick Guide • Before reading bar codes, clean those labels if stained. • Avoid using the BHT in direct sunlight. The BHT might fail to read correctly. • To read bar codes on curved surfaces, apply the BHT to the target bar code so that the code comes to the center of the scanning range indicated by the laser beam.
4 1.2 Setting and Using the Hand Strap ■ Setting the hand strap ■ Using the hand strap Put your hand through the hand strap and hold the BHT as shown below.
5 Chapter 1. Quick Guide 1.3 Setting the Backlight Pressing the M1 key while holding down SF (Shift) key activates or deactivates the backlight function. Press M1 while holding down SF . Backlight ON If no key is pressed for at least 3 seconds. Backlight OFF (The backlight function is kept ON.
6 1.4 Using the Keypad ■ Entering Numerical Data To enter numerical data, e.g., the quantity of goods, use the ten numerical keys and the ENT key. For example, to enter the number "120," press the 1 , 2 and 0 keys and then press the ENT key.
7 Chapter 1. Quick Guide 1.5 T ransferring Data ■ Using radio link (BHT-7500S/7500W only) Using radio waves, the BHT-7500S/7500W may transfer data to an access point in a spread-spectrum communications system. If there are too many communications errors, first make sure that the BHT points directly at an access point because the 2.
8 ■ Using infrared link Using infrared rays, the BHT may transfer data directly to the host computer equipped with an IrDA interface port and other IrDA-compliant devices. •M ake sure that there is no obstruction in the light path between the BHT and any target stations.
9 Chapter 2. Getting Started the BHT and System Mode Chapter 2 Getting Started the BHT and System Mode This chapter summarizes the BHT system configuration and describes the operation including preparation and System Mode (which is required for the efficient use of application programs).
10 BHT Host Computer CU-7000 (option) RS-232C Interface Optical Communications RS-232C Interface (option) BHT-BASIC Compiler (option) Ir-Transfer Utility C (option) Ir-Transfer Utility E (option) Transfer Utility (option) Optical Communications 2.
11 Chapter 2. Getting Started the BHT and System Mode In addition, the BHT-7500S/7500W may operate in a radio communications system (spread-spectrum communication) by connecting with access points by a wireless local area network (wireless LAN).
12 ■ CU-7000 and RS-232C Interface Cable (option) The CU-7000 is an IrDA-compliant communications unit which is required when your host computer is not equipped with an IrDA interface port. The CU-7000 exchanges data and programs with the BHT optically, and with the host computer via the RS-232C interface cable.
13 Chapter 2. Getting Started the BHT and System Mode ■ Transfer Utility (option) Running on the host computer, this utility transfers files between the BHT and the host computer. For its file transfer control procedure, the utility uses the BHT-protocol.
14 System Mode System Mode is a system program exclusively designed for the effective use of user programs in the BHT. It sets up the execution environments for those programs; e.g., it prepares downloading/uploading conditions, sets the calendar clock, and tests the BHT components including the LCD, beeper, and keypad.
15 Chapter 2. Getting Started the BHT and System Mode 2.2 Components and Functions * The trigger switch function is assigned to both of the M3 and M4 keys by default. Indicator LED Illuminates in green when the BHT has successfully read the bar code. Liquid crystal display (LCD) Shows the characters and graphic patterns.
16 The functions of the keys may be set by user programs. Shown below is a set of sample functions. Function keys Used for choosing functions. M1/M2 (Magic) keys Used as any of the trigger switch (default), ENT key, SF key, and backlight function on/off key depend- ing upon definition in System Mode or in user programs.
17 Chapter 2. Getting Started the BHT and System Mode 2.3 Pr eparation 2.3.1 Setting-up 1: Loading the Battery Cartridge Before the first use of the BHT, be sure to load the battery cartridge as shown below. The battery cartridge is not loaded in the BHT when shipped from the factory.
18 • Never charge the dry battery cartridge. • The BHT has an integrated backup power source which backs up the memory and calendar clock in the BHT when no battery cartridge is loaded or the voltage level of the battery cartridge drops below the specified level.
19 Chapter 2. Getting Started the BHT and System Mode ■ Low Battery Indication Low battery indication—Level 1 If the battery output voltage drops below a specified lower level limit while the BHT is in operation, the BHT displays the following Level 1 message for approx.
20 W ARNING Only use the dedicated charger (CU-7001, C-700 or C-750) for charging the rechargeable battery cartridge. Using a different type of charger could cause battery-rupture or leakage of battery fluid and result in a fire, bodily injury, or serious damage to property.
21 Chapter 2. Getting Started the BHT and System Mode 2.3.2 Setting-up 2: Setting the Calendar Clock Turn the BHT on by pressing the PW key. The following message will appear. In the following cases, the above message will appear. In such instances, it is necessary to set the date and time.
22 (3) Press the 3 key on the SET SYSTEM screen to select the "DATE/TIME" and then press the ENT key, and the screen shown at left will appear. (4) Use the numerical keys to enter the year (only the last two digits), month, day, hour, and minute in this order.
23 Chapter 2. Getting Started the BHT and System Mode [Example] To set 2000, April 19, at 4:00 p.m. Press 0 , 0 , 0 , 4 , 1 , 9 , 1 , 6 , 0 , and 0 . (5) Press the ENT key to register the above setting. (6) Press the C key to return to the SET SYSTEM screen.
24 2.3.3 Adjusting the LCD Contrast & Beeper V olume and Switching the Beeper & V ibrator While holding down the M1 or M4 key (trigger switch), press the PW key, and any of the following screens will appear on the LCD. This screen will disappear if no keys are pressed for five seconds.
25 Chapter 2. Getting Started the BHT and System Mode Switching the beeper & vibrator You may choose any of three ways—beeping only, vibrating only, or beeping & vibrating as a confirmation of completion of bar-code reading.
26 2.3.4 Battery V oltage Display The battery voltage level is always displayed on the status indicator line (bottom line). The displayed battery level shows the terminal voltage of the battery, not how much power is left. The battery voltage level varies depending upon the operation of the BHT, so the displayed level also may vary.
27 Chapter 2. Getting Started the BHT and System Mode Shows the current backup state in progress. Shows the total volume of data to be backed up. Now saving data.
28 (2) When turning the BHT on after storage with no battery cartridge loaded: Even after removal of the battery cartridge, the calendar clock will work with the backup power source for a while.
29 Chapter 2. Getting Started the BHT and System Mode 2.3.7 BHT T urning-off Notes [ 1 ] "Shutdown in pr ogress" message When the BHT is turned off by pressing the PW key or by the auto power-off feature, it displays the following message and starts preparation for shutdown.
30 Scandisk is checking your drive for errors. Do you want to run Scandisk? 1.Yes 2.No (1) Press the 2 key while holding down the SF key. The screen will switch to the following: [ 1 ] YES: Run Scandisk and start the System. [ 2 ] NO: Turn the BHT off.
31 Chapter 2. Getting Started the BHT and System Mode ■ Scandisk when the resume function is enabled If Scandisk runs when the resume function is enabled, the screen given below may appear. The screen may also appear when the calendar clock built in the BHT stops, even without running Scandisk.
32 [ 3 ] About "$$BRKLST .SYS" If Scandisk finds an invalid file(s), it will automatically create the "$$BRKLST.SYS" file. To check the contents of the file, upload the file in System Mode to the host computer. (Refer to Subsection 2.
33 Chapter 2. Getting Started the BHT and System Mode 2.4 Initializing the BHT System Initializing the system will lose program files and data files stored in the user area and the system settings will revert to the factory defaults. You may delete font files by selecting the whole user area to be initialized.
34 (1) Selecting the memory area to be initialized Press the PW key while holding down the SF , M1 and 0 keys together. The screen shown at left will appear. To initialize the user area except for the font file area, press the ENT key. The screen switches to the SELECT MESSAGE display given in step (2).
35 Chapter 2. Getting Started the BHT and System Mode (3) Confirming the memory area selected for initialization Selecting the "USER AREA EXCEPT FONTS" in step (1) above will call up the confirmation screen shown at left. 1 Yes : Starts initialization.
36 (5) Completion of initialization Upon completion of the initialization, the BHT dis- plays the screen shown at left for a second and turns itself off automatically. • Do not turn the BHT off until the above initialization completion screen appears.
37 Chapter 2. Getting Started the BHT and System Mode 2.5 Operating in System Mode System Mode is an operating software exclusively designed for the effective use of the BHT, which includes various functions as shown on the following pages.
38 ■ Structure of System Mode SYSTEM MENU ⇐ Press the PW key while holding down the SF and 1 keys. Uploading Transfers user program files and data files stored in the memory of the BHT to the host computer.
39 Chapter 2. Getting Started the BHT and System Mode TEST 1:BARCODE 2:MEMORY 3:BEEPER 4:AGING 5:COMMUNICATION 6:LCD 7:KEY & VIBRATION 8:FILE 9:PING System Information Shows the system program version, memory size, system message version, and JIS font type and version.
40 In addition to the functions given on the previous pages, System Mode has these five functions: Deleting files, Downloading/uploading the BHT system parameter file, Set- ting the remote wakeup parameters, Setting the CPU performance and Downloading/ uploading the system message file.
41 Chapter 2. Getting Started the BHT and System Mode Setting the CPU performance Sets the CPU performance to Regular or High. (Refer to Subsection 2.5.
42 2.5.2 Operating in System Mode Some functions in System Mode require several screens to be shifted, as shown in the example below. [ 1 ] Calling up the desir ed set screen First, select a desired item on the current screen by using the numerical key or the cursor keys ( and ) so as to highlight the desired item.
43 Chapter 2. Getting Started the BHT and System Mode Press 2 or use and to select the desired set item. [ 2 ] Selecting a desired setting First, select a desired item on the current screen by using the numerical key or the cursor keys ( and ) so as to highlight the desired item.
44 2.5.3 Detailed Description of the Functions in System Mode [ 1 ] Pr ogram Execution Selecting "1:EXECUTE PROGRAM" on the SYSTEM MENU calls up the screen shown at left. If more than one program has been downloaded to the user area of the target memory, use the and keys to move the cursor to a target program, and then press the ENT key.
45 Chapter 2. Getting Started the BHT and System Mode ⇓ In the example shown at left, 21 programs are downloaded. If no program file is downloaded, the message shown at left will appear. To return to the SYSTEM MENU, press the C key. EXECUTE PROGRAM SAMPLE05.
46 Selecting "2: DOWNLOAD" on the SYSTEM MENU calls up the screen shown at left. 1 FILE : Downloads a user program file or data file to the user area of the BHT. 2 HT<-->HT COPY : Downloads all of the files, system parameters, and cal- endar clock data stored in the connected BHT.
47 Chapter 2. Getting Started the BHT and System Mode Data that can be copied from one BHT to another BHT The copying function between BHTs copies the following set data: LCD contrast level Beeper vol.
48 With this screen displayed, the BHT waits for a file to be downloaded. If you select "2:HT<-->HT" on the DOWNLOAD menu, the "HT<-->HT" will appear in the center of the 2nd line. If you select "1:FILE," nothing will ap- pear on the 2nd line.
49 Chapter 2. Getting Started the BHT and System Mode If an error occurs during downloading If some error occurs during downloading, the BHT beeps three times and shows one of the following screens with the prompt "Retry?": To retry the download, press the 1 and ENT keys; to abort it, press the 2 and ENT keys.
50 ■ Problem You attempted to download an invalid program file. ■ Solution Check whether the program file you attempted to download is available to your BHT model. If it is not available, download the appropriate program. DOWNLOAD FILE XXXXXXXX.
51 Chapter 2. Getting Started the BHT and System Mode [ 3 ] Uploading Selecting "3: UPLOAD" on the SYSTEM MENU calls up the screen shown at left. 1 ONE FILE : Uploads a user program file or data file stored in the memory. 2 ALL FILES : Uploads all user program files (object programs) and all data files stored in the memory.
52 If you select "1:ONE FILE" or "2:ALL FILES" on the UPLOAD menu when no files are stored in the memory, the message shown at left will appear.
53 Chapter 2. Getting Started the BHT and System Mode If an error occurs during uploading If some error occurs during uploading, one of the following screens will appear and the beeper beeps three times. To retry the uploading operation, press the 1 and ENT keys; to abort it, press the 2 and ENT keys.
54 [ 4 ] System Envir onment Setting Selecting "4: SET SYSTEM" on the SYSTEM MENU calls up the screen shown at left. 1 EXECUTE PROGRAM : Sets an execution pro- gram to be run when the power is turned on. 2 DISPLAY : Sets the message ver- sion (English or Japa- nese).
55 Chapter 2. Getting Started the BHT and System Mode [4.1] Setting an execution pr ogram Selecting "1: EXECUTE PROGRAM" on the SET SYSTEM menu calls up the screen shown at left.
56 [4.2] Setting the message version Selecting "2: DISPLAY" on the SET SYSTEM menu calls up the screen shown at left. Highlighted is the current setting. 1 MESSAGE: Switches the message version to English or Japanese for system error messages and indications on the LCD contrast, beeper vol- ume, and beeper & vibrator switching screen.
57 Chapter 2. Getting Started the BHT and System Mode [4.3] Setting the calendar clock Selecting "3:DATE/TIME" on the SET SYSTEM menu calls up the screen shown at left. Use the numerical keys to enter the year (only the last two digits), month, day, hour, and minute in this order, and then press the ENT key.
58 Selecting "4: BARCODE" on the SET SYSTEM menu calls up the screen shown at left. Highlighted is the current setting. 1 INVERT : Activates or deactivates the black-and-white inverted la- bel reading function. 2 DECODE LEVEL : Sets the decode level.
59 Chapter 2. Getting Started the BHT and System Mode Minimum number of digits to be read for ITF, STF, or Codabar (MINIMUM DIGITS) You may set the minimum number of digits to be read for ITF, STF, and Codabar.
60 [4.5] Setting the communications envir onments After the BHT is initialized, the interface port and communications parameters are set as listed in the default table below. Do not access them unless necessary. Listed below are the default communications parameters for the direct-connect inter- face.
61 Chapter 2. Getting Started the BHT and System Mode Selecting the "5: COMMUNICATION" on the SET SYSTEM menu calls up the screen shown at left. 1 OPTICAL: Switches to the communi- cations parameters setting screen for the optical inter- face .
62 (1) Communications parameters setting screen Selecting "1:PARAMETER" on the SET OPTICAL screen calls up the screen shown at left. Highlighted is the current setting. Select the desired transmission speed by using the numerical keys or and keys, and then press the ENT key.
63 Chapter 2. Getting Started the BHT and System Mode [4.5-2] Setting the communications parameters for the direct-connect interface Selecting "2:CONNECTOR" on the SET COMMUNI- CATION menu calls up the screen shown at left. 1 PARAMETER: Switches to the commu- nications parameters set- ting screen.
64 (2) Communications protocol option screen Selecting "2:PROTOCOL" on the SET CONNECTOR screen calls up the screen shown at left. Highlighted is the current setting. 1 SERIAL No.: Selects whether or not the system will add serial num- bers to data blocks.
65 Chapter 2. Getting Started the BHT and System Mode [4.5-3] Setting the interface port Selecting the "3:COM PORT" on the SET COMMU- NICATION menu calls up the screen shown at left.
66 [4.5-4] Setting the communications protocol type Selecting the "4:PROTOCOL TYPE" on the SET COMMUNICATION menu calls up the screen shown at left. Highlighted is the current setting. 1 BHT Protocol: Selects the BHT-protocol for downloading or uploading files in System Mode or for the execution of XFILE state- ment in BHT-BASIC.
67 Chapter 2. Getting Started the BHT and System Mode Selecting the "2:BHT-Ir Protocol" on the PROTO- COL TYPE screen calls up the screen shown at left. Enter the ID number of the BHT by using the nu- merical keys, and then press the ENT key.
68 [4.6] Defining the functions of the shift key and magic keys Selecting the "6:KEY" on the SET SYSTEM menu calls up the screen shown at left. Highlighted is the current setting. 1 SHIFT KEY: Switches to the shift key defini- tion screen. 2 M1 KEY: Switches to the M1 key definition screen.
69 Chapter 2. Getting Started the BHT and System Mode Selecting the "2:M1 KEY," "3:M2 KEY," "4:M3 KEY" or "5:M4 KEY" on the SET KEY menu calls up the screen as shown at left. (This example appears when the "4:M3 KEY" is selected.
70 [4.7] Setting the resume function Selecting "7: RESUME" on the SET SYSTEM menu calls up the screen shown at left. Highlighted is the current setting. 1 ON : Activates the resume function which resumes the current BHT status when the BHT power was turned off, when the BHT is switched on.
71 Chapter 2. Getting Started the BHT and System Mode [4.8-1] Setting the TCP/IP Selecting "1:SET TCP/IP" on the SET TCP/IP menu calls up the screen shown at left where the current settings are displayed. Select a desired item by using the numerical keys or and keys, and then press the ENT key.
72 [4.8-2] Setting the FTP Selecting "2:SET FTP" on the SET TCP/IP menu calls up the screen shown at left. 1 SERVER : Switches to the FTP server con- nection environments screen. 2 OPTION : Switches to the data transfer pa- rameters screen. Select a desired item by using the numerical keys or and keys, and then press the ENT key.
73 Chapter 2. Getting Started the BHT and System Mode SET OPTION 1:CR/LF CR-LF LF CR None 2:CR/LF CODE PROPERTY Control code Data 3:FIELD SPACE Ignore Data 4:UPLOAD MODE Overwrite Append 5:VERBOSE MOD.
74 [ 5 ] T esting Selecting "5:TEST" on the SYSTEM MENU calls up the screen shown at left. 1 BARCODE : Selects the bar-code reading test. 2 MEMORY : Selects the RAM read/write test. 3 BEEPER : Selects the beeper scale test. 4 AGING : Selects the aging test.
75 Chapter 2. Getting Started the BHT and System Mode [5.1] Bar -code reading test Selecting "1: BARCODE" on the TEST menu calls up the screen shown at left.
76 [5.2] Memory test Selecting "2:MEMORY" on the TEST menu calls up the screen shown at left, and then starts writing and reading onto/from all areas of the RAM as well as checking the address.
77 Chapter 2. Getting Started the BHT and System Mode [5.3] Beeper scale test Selecting "3:BEEPER" on the TEST menu calls up the screen shown at left and makes the beeper sound at three octaves listed below. Upon completion of this test, the BHT automati- cally returns to the TEST menu.
78 [5.5] Communications test In System Mode, you may test the optical interface port and direct-connect interface port. ■ Preparation for the optical interface test Arrange two BHTs, one as a master station and the other as a slave station (to be tested) with their IR ports facing each other as illustrated below.
79 Chapter 2. Getting Started the BHT and System Mode Testing the optical interface port Selecting the "1:OPTICAL" on the TEST COMMU- NICATION menu calls up the screen shown at left. At the slave BHT to be tested, select the "1:SLAVE" and at the master BHT, select the "2:MASTER.
80 If any error occurs, the BHT beeps three times and shows the screen at left. In parentheses are error codes which have the following meanings: ( X X) 1: The received data is different from the sent data. 2: A timeout has occurred during standby for data reception.
81 Chapter 2. Getting Started the BHT and System Mode Selecting "6:LCD" on the TEST menu calls up the test pattern shown at left on the LCD and turns on the indicator LED in green. Each time the ENT key is pressed, the screen shifts to the next test pattern.
82 An outline with a width of one dot appears. ⇑ ⇓ ENT key BS key The checker pattern shown at left appears and the indicator LED goes off. ⇑ ⇓ ENT key BS key The checker pattern is reversed.
83 Chapter 2. Getting Started the BHT and System Mode The fine checker pattern appears. The fine checker pattern is reversed. Four right-angled triangles appear. ⇑ ⇓ ENT key BS key ⇑ ⇓ ENT key BS key Press the ENT key, and the BHT beeps once and returns to the TEST menu.
84 [5.7] Key entry & beeper test Selecting "7:KEY & VIBRATION" on the TEST menu calls up the screen shown at left and makes the BHT ready for entry from the keypad.
85 Chapter 2. Getting Started the BHT and System Mode The file name, file size, and test result (OK or NG) appear as shown at left. Press the C key to return to the file selection screen. If a defective file is found, delete it or overwrite it with the same name file.
86 [5.9] T esting with PING (BHT -7500S/7500W only) TEST PING 1:RUN PING 2:SET PING Selecting "9:PING" on the TEST menu calls up the screen shown at left. 1 RUN PING : Runs PING. 2 SET PING : Switches to the PING parameter setting screen. Select a desired item by using the numerical keys or and keys, and then press the ENT key.
87 Chapter 2. Getting Started the BHT and System Mode PING run-time messages (that will appear in the middle of the LCD) Message Displays when: Waiting Setting up PING. Opening TCP/IP Opening devices. Routing TCP/IP Connecting to the TCP/IP communications pathway.
88 If you select one of "1:DESTINATION IP" through "5:COUNT" items and press the ENT key, then the entry box of that item becomes ready to accept entry and a cursor appears. Enter the desired value by using the numerical keys and then press the ENT key.
89 Chapter 2. Getting Started the BHT and System Mode PING Echo Request Send Timing (SEND TYPE) Two types of echo request send timings are available: TYPE 1 and TYPE 2. ■ TYPE 1 After sending an echo request, PING will wait for the period specified by INTERVAL and then send an echo request again.
90 [ 6 ] System Information Selecting the "6:VERSION" on the SYSTEM MENU calls up the screen shown at left, displaying the system program version, ROM and RAM sizes, sys- tem message version, and JIS font types and their versions. Press the C key to return to the SYSTEM MENU.
91 Chapter 2. Getting Started the BHT and System Mode FTP MENU 1:DOWNLOAD 2:UPLOAD DOWNLOAD FILE SERVER IP:XXX.XXX.XXX.XXX CURRENT DIRECTORY: .
92 UP LOAD FILE SERVER IP:XXX.XXX.XXX.XXX CURRENT DIRECTORY: .../ABCD/EFGH/IJKL/MNOP/QR ST/UVWX/YZ/0000/1111/22222 1:DIR/FILE [ ] 2:SELECT FILE [ ] -------------------------- IP address of an FTP serv.
93 Chapter 2. Getting Started the BHT and System Mode UPLOAD FILE SAMPLE01.DAT SAMPLE02.DAT SAMPLE03.DAT SAMPLE04.DAT SAMPLE05.DAT SAMPLE06.DAT SAMPLE07.DAT SAMPLE08.DAT SAMPLE09.DAT SAMPLE10.DAT SAMPLE11.DAT SAMPLE12.
94 Run-time messages in downloading/uploading by FTP When the BHT is uploading or downloading files by FTP, the following messages may appear in the bottom of the LCD: Messages Displays when: Aborted. Uploading or downloading is interrupted. Connection error The communications pathway is disconnected.
95 Chapter 2. Getting Started the BHT and System Mode Reply codes from the FTP server The messages that FTP servers send during and after FTP operations vary, but servers all use the same reply codes as listed below. Reply codes Description 110 Restart marker reply.
96 RF MENU 1:SET ID 2:VERSION SET ID 1:DOMAIN 0 2:SECURITY ID [ ******************** ] [ 8 ] RF Menu BHT-7500S Selecting "8:RF" on the SYSTEM MENU calls up the screen shown at left. 1 SET ID : Switches to the ID entry screen.
97 Chapter 2. Getting Started the BHT and System Mode SET ID 1:DOMAIN 0 2:SECURITY ID [ ******************** ] Set up? 1:Yes 2:No Shown at left is an entry sample screen where a security ID is DENSO WAVE. After entry, press the ENT key.
98 SUB SYSTEM VERSION Vx.x MACID [001122334455] XXXXXXXXXXXX Parameter save error!! XXXXXXXXXXXX Parameter load error!! [8.2] RF version scr een Selecting "2:VERSION" on the RF MENU displays the "** Loading **" while the system is getting information about the wireless module.
99 Chapter 2. Getting Started the BHT and System Mode [ 8 ] RF Menu BHT-7500W RF MENU 1:PARAMETER 2:SITE SURVEY 3:VERSION SET RF PARAMETER 1:ID 2:RF OPTION 3:WEP KEY 4:INITIALIZE Selecting the "8:RF" on the SYSTEM MENU calls up the screen shown at left.
100 BHT-7500W SET ID 1:CLIENT NAME [ ] 2:SSID tsunami SET ID 1:CLIENT NAME [ ] 2:SSID tsunami Set up? 1:Yes 2:No [8.1.1] ID entry screen Selecting the "1:ID" on the RF parameter menu displays the "** Now Loading **." After that, the screen shown at left will appear where the current settings are displayed.
101 Chapter 2. Getting Started the BHT and System Mode BHT-7500W SET RF OPTION 1:POWER SAVE ON OFF 2:WEP ON OFF 3:AUTHENTICATE OPEN SHAREDKEY SET RF OPTION 1:POWER SAVE ON OFF 2:WEP ON OFF 3:AUTHENTICATE OPEN SHAREDKEY Set up? 1:Yes 2:No [8.
102 BHT-7500W SET WEP KEY 1:WEP KEY1 2:WEP KEY2 3:WEP KEY3 4:WEP KEY4 5:TRANSMIT KEY [8.1.3] WEP key definition screen Selecting the "3:WEP KEY" on the RF parameter menu displays the screen shown at left. 1 WEP KEY1 Switches to the WEP KEY 1 screen.
103 Chapter 2. Getting Started the BHT and System Mode BHT-7500W SET WEP KEY1 1:KEY SIZE 40 128 2:KEY ********** SET WEP KEY1 1:KEY SIZE 40 128 2:KEY ABCDE12345 Defining WEP KEY 1 Selecting the "1:WEP KEY1" on the WEP KEY defi- nition screen displays the "** Now Loading **.
104 BHT-7500W SET WEP KEYx 1:KEY SIZE 40 128 2:KEY ABCDE12345 Set up? 1:Yes 2:No SET WEP KEYx 1:KEY SIZE 40 128 2:KEY ABCDE123 Set error ! After making any change of settings, press the C key with any item highlighted. The confirmation screen will appear as shown at left.
105 Chapter 2. Getting Started the BHT and System Mode BHT-7500W SET TRANSMIT KEY 1:TRANSMIT KEY KEY1 KEY2 KEY3 KEY4 SET TRANSMIT KEY 1:TRANSMIT KEY KEY1 KEY2 KEY3 KEY4 Set up? 1:Yes 2:No Setting TRANSMIT KEY Selecting the "5:TRANSMIT KEY" on the WEP KEY definition screen displays the "** Now Loading **.
106 BHT-7500W INITIALIZE RF Initialize Parameters? 1:Yes 2:No Selecting the "4:INITIALIZE" on the RF parameter menu calls up the screen shown at left. To initialize the RF parameters, choose "1:Yes" and press the ENT key. Initialization will start with the "** Initializing **" displayed.
107 Chapter 2. Getting Started the BHT and System Mode BHT-7500W SITE SURVEY 1:LINK STATUS [8.2] SITE SURVEY menu Selecting the "2:SITE SURVEY" on the RF MENU calls up the screen shown at left. 1 LINK STATUS Switches to the link status screen.
108 SUB SYSTEM VERSION V X.XX MACID [XXXXXXXXXXXX] [8.3] RF version screen Selecting the "3:VERSION" on the RF MENU dis- plays the "** Now Loading **" while the system is getting information about the wireless module. After that, the screen shown at left will appear.
109 Chapter 2. Getting Started the BHT and System Mode If no file is resident in the memory, the message shown at left appears. Press the C key to return to the SYSTEM MENU. File deletion menu Pressing the 0 key while holding down the SF key on the SYSTEM MENU calls up the screen shown at left.
110 Deletion completion screen Upon completion of deletion, the screen shown at left appears. Press the C key to return to the file deletion menu. DELETE FILE ** Completed **.
111 Chapter 2. Getting Started the BHT and System Mode ⇓ ⇓ [10.1] Downloading the BHT system parameter file Selecting "1:DOWNLOAD" on the SYSTEM PARAM- ETER transfer menu calls up the screen shown at left. With this screen displayed, the BHT waits for the BHT system parameter file to be downloaded.
112 If an error occurs during downloading If some error occurs during downloading, the BHT beeps three times and shows one of the following screens with the prompt "Retry?": To retry the download, press the 1 and ENT keys; to abort it, press the 2 and ENT keys.
113 Chapter 2. Getting Started the BHT and System Mode ■ Problem The current download will exceed the maximum of 80 files in the memory. ■ Solution Press the 2 key to return to the SYSTEM MENU, then delete unnecessary files in the memory. (Re- fer to Subsection 2.
114 ⇓ ⇓ [10.2] Uploading the BHT system parameter file Selecting "2:UPLOAD" on the SYSTEM PARAM- ETER transfer menu calls up the screen shown at left. With this screen displayed, the BHT waits for the BHT system parameter file to be uploaded.
115 Chapter 2. Getting Started the BHT and System Mode If an error occurs during uploading If some error occurs during uploading, one of the following screens will appear and the beeper beeps three times. To retry the uploading operation, press the 1 and ENT keys; to abort it, press the 2 and ENT keys.
116 [ 1 1 ] Setting the Remote W akeup Pressing the 4 key while holding down the SF key on the SYSTEM MENU calls up the screen shown at left. 1 REMOTE WAKEUP: Activates or deactivates the remote wakeup func- tion. 2 TRANSMIT SPEED: Sets the transmission speed for the remote wakeup.
117 Chapter 2. Getting Started the BHT and System Mode [ 12 ] Setting the CPU Performance Pressing the 5 key while holding down the SF key on the SYSTEM MENU calls up the screen shown at left. 1 Regular: Operates the CPU at normal clock speeds. 2 High: Operates the CPU at higher clock speeds.
118 [ 13 ] Downloading/Uploading the System Message File ⇓ ⇓ Pressing the 6 key while holding down the SF key on the SYSTEM MENU calls up the screen shown at left. 1 DOWNLOAD: Downloads the system mes- sage file to the user area of the BHT. 2 UPLOAD: Uploads the system message file stored in the BHT.
119 Chapter 2. Getting Started the BHT and System Mode If an error occurs during downloading If some error occurs during downloading, the BHT beeps three times and shows one of the following screens with the prompt "Retry?": To retry the download, press the 1 and ENT keys; to abort it, press the 2 and ENT keys.
120 ■ Problem The current download will exceed the maximum of 80 files in the memory. ■ Solution Press the 2 key to return to the SYSTEM MENU, then delete unnecessary files in the memory. (Re- fer to Subsection 2.5.3, [ 9 ].) ■ Problem Downloading has failed.
121 Chapter 2. Getting Started the BHT and System Mode [13.2] Uploading the system message file ⇓ ⇓ Selecting "2:UPLOAD" on the SYSTEM MESSAGE transfer menu calls up the screen shown at left. With this screen displayed, the BHT waits for the system message file to be uploaded.
122 If an error occurs during uploading If some error occurs during uploading, one of the following screens will appear and the beeper beeps three times. To retry the uploading operation, press the 1 and ENT keys; to abort it, press the 2 and ENT keys.
123 Chapter 3. Communications Operations of the BHT Chapter 3 Communications Operations of the BHT This chapter describes the communications operations of the BHT-7500/7500S/7500W— the spread-spectr.
124 3.1 Spr ead-Spectrum Communication (BHT -7500S/7500W only) 3.1.1 Notes for W ir eless Operations • If there are too many communications errors, first make sure that the BHT points directly at an access point because the 2.4-GHz band requires a more or less straight line path.
125 Chapter 3. Communications Operations of the BHT ■ Security IDs For assuring higher security, set security IDs to the BHTs. Those IDs should match those of the access points. Usually, use a same security ID for a company or a department (or section).
126 User programs Physical layer (IrDA1.0) BHT-BASIC BHT-Ir protocol The BHT's IR communications device is IrDA-compliant. IrDA stands for Infrared Data Association, which has defined hardware (IrDA Serial Infrared Physical Layer Link) and communications protocols for IR communications.
127 Chapter 3. Communications Operations of the BHT 3.3 RS-232C Interface Specifications [ 1 ] Interface Connector and Pin Assignment The BHT has a direct-connect interface port which is connectable to the 3-pole mini stereo plug (ø2.5 mm or 0.1") and supports a subset of the RS-232C interface as shown below.
128 [ 2 ] Interface Cable Connection Connect the BHT directly to a host computer, a modem, or a printer with a direct- connect interface cable as illustrated below.
129 Chapter 3. Communications Operations of the BHT 3.4 Basic Communications Specifica- tions and Parameters 3.4.1 Basic Communications Specifications Listed below are the communications specifications when the BHT exchanges data with a host computer through the CU-7000 (optical interface) or direct-connect inter- face cable.
130 ■ Transmission Code and Bit Order All characters should be coded to 7- or 8-bit code for data transmission. The standard data exchange code of the BHT is JIS 7- or 8-bit code.
131 Chapter 3. Communications Operations of the BHT 3.4.2 Communications Parameters In System Mode and user programs written in BHT-BASIC, you may set the communi- cations parameters listed below.
132 3.5 Communications Pr otocols The BHT supports both the BHT-protocol and the BHT-Ir protocol for file transmission. 3.5.1 BHT -pr otocol [ 1 ] Overview The BHT-protocol is the communications procedure used to transmit files between the BHT and a host (or between the BHTs).
133 Chapter 3. Communications Operations of the BHT [ 2 ] Control Characters The control characters are classified into two groups: transmission control characters and text control characters.
134 (2) T ext control characters 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).
135 Chapter 3. Communications Operations of the BHT S O H E T X B C C S T X E T X B C C S T X E T X B C C [ 3 ] Basic Format of T ransmission 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.
136 123 4 000 0 0 0 11 7 23 4 56789 1 0 11 12 13 14 15 16 PR O G 1 . P D3 0 0 52 3 [ 4 ] T ext Format Text should be formatted according to the standard of the BHT-protocol before trans- mission. Shown below are two types of the standard text formats for program files and data files.
137 Chapter 3. Communications Operations of the BHT 123456789 1 01 11 21 31 41 51 61 71 81 92 02 1 MA S T E R D A T 00592 n 06 10 . T1 00 91 S1 2 3 9202141325 ■ Data Text Format (1) Heading text Dat.
138 3.5.2 BHT -Ir Pr otocol [ 1 ] Overview The BHT-Ir protocol is the communications procedure for the serial infrared link, which is used to transmit files between the BHT and a host (or between the BHTs). It adopts the response method using ACK/NAK codes.
139 Chapter 3. Communications Operations of the BHT [ 2 ] Control Characters The control characters are classified into two groups: transmission control characters and text control characters.
140 (2) T ext control characters The text control characters are used to format transmission texts. In the BHT-Ir protocol, they include the following headers and a terminator. Symbol Value Meaning Function DLE SOH 1001h Start Of Heading Indicates the start of heading text (Phase 2).
141 Chapter 3. Communications Operations of the BHT S O H E T X C R C S T X E T X C R C S T X E T X C R C D L E D L E D L E D L E D L E D L E I D I D I D (2 bytes) (5 bytes) • • • • • • [ 3 ] Basic Format of T ransmission Messages Basically, the BHT transmits data as units of a file.
142 123 4 000 0 0 0 11 7 23 4 56789 1 0 11 12 13 14 15 16 PR O G 1 . P D3 0 0 52 3 [ 4 ] T ext Format Text should be formatted according to the standard of the BHT-Ir protocol before transmission. Shown below are two types of the standard text formats for program files and data files.
143 Chapter 3. Communications Operations of the BHT 123456789 1 01 11 21 31 41 51 61 71 81 92 02 1 MA S T E R . D A T 00592 n 00 54 6 2 22 T1 00 91 S1 2 3 9202141325 ■ Data Text Format (1) Heading text Every data field should be 1 to 254 digits in length.
144.
145 Chapter 4. Error Messages This chapter lists the error messages which will appear on the LCD if some error occurs in the BHT-7500/7500S/7500W. Chapter 4 Err or Messages 4.1 System Errors ............................................................
146 4.1 System Errors If some error occurs when the power is turned on or during program execution, one of the following error messages will appear on the LCD.
147 Chapter 4. Error Messages (When the dry battery cartridge is loaded) (When the rechargeable battery cartridge is loaded) Low battery indication—Level 2 ■ Problem When the power is turned on or.
148 System Program malfunction ■ Problem During execution of System Program, the System Program has attempted to write onto the write-pro- tected area of the memory. (xxxxxxxx: Error address) If this error occurs, the BHT beeps five times (for 0.1 second per beep).
149 Chapter 4. Error Messages Execution program not selected ■ Problem No user program has been selected as an execu- tion program to be run when the power is turned on. If this error occurs, the BHT beeps five times (for 0.1 second per beep) and then turns itself off.
150 System down error ■ Problem An error has occurred during execution of System Program. If this error occurs, the BHT beeps five times (for 0.1 second per beep).
151 Chapter 4. Error Messages 4.2 Err ors in System Mode If some error occurs during operation in System Mode, one of the following error messages will appear on the LCD.
152 ■ Problem You have deleted all of the files stored in the memory in the DELETE FILE menu. ■ Solution Press the C key to return to the SYSTEM MENU screen. During downloading of a program file, data file, BHT system parameter file, or system message file ■ Problem The memory is insufficient for storing files to be downloaded.
153 Chapter 4. Error Messages ■ Problem The current download will exceed the maximum of 80 files in the memory. ■ Solution Press the 2 key to return to the SYSTEM MENU, then delete unnecessary files in the memory (or decrease the number of files to be downloaded if you attempted to download more than one file in the DOWNLOAD menu.
154 During uploading of a program file, data file, BHT system parameter file, or sys- tem message file ■ Problem The file you attempted to upload is damaged. ■ Solution To upload the damaged file as is, press the 1 key. UPLOAD FILE XXXXXXXX.
155 Chapter 4. Error Messages UPLOAD FILE XXXXXXXX.XXX Communication error!! Retry? 1:Yes 2:No ■ Problem Uploading has failed. ■ Solution To retry uploading, press the 1 key. To return to the SYSTEM MENU, press the 2 key.
156.
157 Chapter 5. Handling the CU-7000 (Option) Chapter 5 Handling the CU-7000 (Option) This chapter describes the handling procedure of the CU-7000, the interfacing with the host computer, and the charging of the rechargeable battery cartridge. 5.1 Functions of the CU-7000 .
158 5.1 Functions of the CU-7000 The optical communications unit CU-7000 is available in two models: CU-7001 and CU- 7002. The CU-7001 has both of functions (1) and (2) given below, the CU-7002 has only function (1). (1) Data exchange function The CU-7001/CU-7002 exchanges data and programs between the BHT and the host computer.
159 Chapter 5. Handling the CU-7000 (Option) 5.3 Applying Power to the CU-7000 Apply power to the CU-7000 by connecting it to the wall socket via the dedicated AC adapter according to the steps given below.
160 5.4 Communicating with the Host Computer 5.4.1 Setting the T ransmission Speed of the CU-7000 Set the transmission speed of the CU-7000 to the same value as that of the BHT and the host computer, by using the DIP switch provided on the bottom of the CU-7000.
161 Chapter 5. Handling the CU-7000 (Option) 5.4.3 Interfacing with the Host Computer This section describes how to start communication with the host computer in System Mode. The same may apply when you use a user program. (1) Turn the host computer on.
162 5.5 Charging the Rechargeable Bat- tery Cartridge (using the CU-7001) You may charge a rechargeable battery cartridge loaded in the BHT. Service Life of Rechargeable Battery Cartridge: Lithium-ion.
163 Chapter 5. Handling the CU-7000 (Option) Operator's Action Place the BHT on the CU-7001. ⇓ After approx. 4 hours ⇓ Remove the BHT. CU-7001 Status On standby ⇓ Normal charging ⇓ Chargi.
164 5.6 RS-232C Interface Specifications [ 1 ] Interface Connector and Pin Assignment The CU-7000 has an RS-232C interface port (Dsub-25S). RS-232C interface port (Dsub-25S) on the CU-7000 Pin No.
165 Chapter 5. Handling the CU-7000 (Option) [ 2 ] Interface Cable Connection As illustrated below, connect the CU-7000 (on which the BHT is put) to a host computer with a cross-mode cable.
166.
167 Appendices Appendices Appendix A. Specifications .............................................................................................. 168 A.1 BHT -7500/7500S/7500W .........................................................................
168 Appendix A. Specifications A.1 BHT -7500/7500S/7500W [ 1 ] Pr oduct Specifications Power Source Main power • Rechargeable lithium-ion battery cartridge (3.6 VDC) or • Dry battery cartridge (two alkaline manga- nese batteries LR6s) Dimensions 75 x 203 x 50 mm (W) x (L) x (H) (3.
169 Appendices Screen mode Font size Chars x Lines Dots (W x H) Single-byte Standard-size 26 x 20 6 x 8 ANK* mode Small-size 26 x 26 6 x 6 Two-byte 16-dot font Full-width 10 x 10 16 x 16 Kanji mode Ha.
170 (2) Optical Properties Required for Bar Code Labels White bars: Reflection intensity 45% min. Black bars: Reflection intensity 25% max. PCS value 0.
171 Appendices (3) Bar Code Label Size Recommended width: 10 mm min. (0.39 inch min.) Length: Depth of field (Distance from bar codes to the bar-code reading window) Length of labels (including margins) Length Minimum narrow bar width Depth of field (4) Thickness of Bars and Depth of Field 0.
172 [ 3 ] Interface Specifications Optical Interface Synchronization: Start-stop Input signals: RD Output signals: SD Transmission speed: 115,200 bps max. Direct-connect Interface Synchronization: Start-stop Transmission speed: 115,200 bps max. Signal level: Conforms to the RS-232C interface Pin assignment: As shown below.
173 Appendices A.2 CU-7000 [ 1 ] Pr oduct Specifications Power Source - Europe 230 VAC, 16 VA - U.S. 120 VAC, 13 VA - Australia 10 to 18 VDC, 450 mA (on 12 VDC) Power Consumption 2 W Dimensions 112 x 148 x 84 mm (W) x (L) x (H) (4.41 x 5.83 x 3.31 inches) Weight CU-7001: Approx.
174 Signal Input/Output External device [ 3 ] Interface Specifications RS-232C Interface Port (Dsub-25S) on the CU-7000 25 13 14 1 1F G Frame ground — 2S D Send data → 3R D Receive data ← 4R S R.
175 Appendices ENQ S O H ACK ACK ACK ACK ACK EOT ACK E T X B C C S T X E T X B C C S T X E T X B C C S T X E T X B C C Establishment of Data Link (Phase 1) Heading text Data text n-1 Serial number Ser.
176 ACK ENQ 3 seconds 3 seconds ENQ ENQ ENQ ACK Data transmission may accidentally involve various types of errors. The BHT-protocol is designed to recover from those errors as frequently as possible. What follows is the BHT-protocol for phases 1 through 3.
177 Appendices ■ Abnormal termination of phase 1 (Abort of phase 1) If the sending station receives no ACK from the receiving station after sending an ENQ 10 times in succession, it sends an EOT to the receiving station after three seconds from the 10th ENQ to terminate the message transmission abnormally.
178 Phase 2: Data Transmission ■ Normal phase 2 The sending station first sends a transmission block containing the heading text. Each time the sending station receives an ACK from the receiving station, it sends a transmission block containing the data texts as shown below.
179 Appendices NAK NAK NAK NAK NAK ACK ■ Phase 2 with NAK If the sending station receives a NAK from the receiving station in response to a transmission block containing text data m, it sends that transmission block again immediately as shown below.
180 EOT 3 seconds 3 seconds ENQ ENQ ACK ■ Phase 2 with EOT If the sending station receives an EOT anytime during phase 2, it shifts to phase 3 to terminate the message transmission abnormally. Even if phase 3 terminates normally, the transmission results in an abnormal end.
181 Appendices EOT ACK 3 seconds 3 seconds ENQ (1) ENQ (2) EOT ENQ (9) 3 seconds ■ Abnormal termination of phase 2 (Abort of phase 2) If the sending station receives no ACK from the receiving statio.
182 EOT (1) EOT (2) EOT (3) 3 seconds 3 seconds EOT (10) 3 seconds or more ACK EOT EOT EOT 3 seconds 3 seconds ■ Phase 3 with iterated EOT transmission due to no response or invalid response If the .
183 Appendices [ 2 ] Aborting Data T ransmission Pressing the C key aborts data transmission. If the C key is pressed during downloading, the BHT transmits an EOT and aborts the file transmission. If it is pressed during uploading, the BHT transmits the current transmission block followed by EOT and then aborts the file transmission.
184 S T X E T X B C C [ 3 ] BCC for Horizontal Parity Checking To check whether data has been transmitted accurately, the BHT supports horizontal parity checking for every transmission block.
185 Appendices B.2 BHT -Ir protocol [ 1 ] T ransmission Contr ol Sequences Shown below is a typical message transmission sequence supported by the BHT-Ir protocol.
186 Data transmission may accidentally involve various types of errors. The BHT-Ir proto- col is designed to recover from those errors as frequently as possible.
187 Appendices ■ Abnormal termination of phase 1 (Abort of phase 1) If the sending station receives no sequence of DLE ACK and IDs from the receiving station after sending a sequence of DLE ENQ and IDm 60 times in succession, it sends a sequence of DLE EOT and IDm to the receiving station after 0.
188 Phase 2: Data Transmission ■ Normal phase 2 The sending station first sends a transmission block containing the heading text. Each time the sending station receives a sequence of DLE ACK and IDs from the receiving station, it sends a transmission block containing the data texts as shown below.
189 Appendices ■ Phase 2 with suspension of data reception for erasure of the flash memory If the receiving BHT requires the flash memory to be erased for receiving downloaded files, it sends a sequence of WACK and IDs to the sending station to suspend the data transmission.
190 ■ Phase 2 with a sequence of DLE NAK and IDs If the sending station receives a sequence of DLE NAK and IDs from the receiving station in response to a transmission block containing text data m, it sends that transmission block again immediately as shown below.
191 Appendices ■ Phase 2 with a sequence of DLE EOT and IDs If the sending station receives a sequence of DLE EOT and IDs anytime during phase 2, it shifts to phase 3 to terminate the message transmission abnormally. Even if phase 3 terminates normally, the transmission results in an abnormal end.
192 ■ Abnormal termination of phase 2 (Abort of phase 2) If the sending station receives no sequence of DLE ACK and IDs from the receiving station after sending a sequence of DLE ENQ and IDs 59 times in succession, it sends a sequence of DLE EOT and IDs to the receiving station after 0.
193 Appendices ■ Phase 3 with iterated transmission of DLE EOT and IDs due to no re- sponse or invalid response If the sending station receives no response or any invalid response from the receiving station in response to the sent sequence of DLE EOT and IDs, it iterates sending of the sequence at 0.
194 ■ Phase 3 with timeout at the receiving station If the receiving station receives no subsequent text or normal sequence of DLE EOT and IDs within 30 seconds after sending a sequence of DLE ACK and IDs, it sends a sequence of DLE EOT and IDs and aborts the transmission abnormally.
195 Appendices [ 3 ] CRC To check whether data has been transmitted accurately, the BHT-Ir protocol supports CRC (Cyclic Redundancy Check) which employs the CRC-16 generating system. In CRC, a CRC character is suffixed to a sequence of DLE ETX of every transmission block.
196 Appendix C. A T ypical Basic Operation What follows is a typical basic operation which helps you instruct the hands-on user in practical bar-code reading operation. Application type: Inventory Operation: Power ON → Read the bar code on stock (A).
Bar Code Handy T erminal BHT -7500/7500S/7500W User's Manual First Edition, JUNE 2002 DENSO WAVE INCORPORATED The purpose of this manual is to provide accurate information in the handling and operating of the BHT-7500/7500S/7500W.
デバイスDenso BHT-7500Sの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Denso BHT-7500Sをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはDenso BHT-7500Sの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Denso BHT-7500Sの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Denso BHT-7500Sで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Denso BHT-7500Sを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はDenso BHT-7500Sの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Denso BHT-7500Sに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちDenso BHT-7500Sデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
