B&B Electronicsメーカー485DSSの使用説明書/サービス説明書
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Distributed Smart Switch Model 485DSS Document No. 485DSS3298 This product Designed and Manufactured In Ottawa, Illinois USA of domestic and imported parts by B&B Electronics Mfg. Co. Inc. 707 Dayton Road -- P.O. Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Internet: http://www.
485DSS3298 Manual Table of Cont ents i B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 TABLE OF CONTENTS CHAPTER 1: HARDWARE ................................................................... 1 I NTRODUCTION .
ii Table of Contents 485DSS3298 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 APPENDIX C: CABLE CHARTS ...................................................... C- 1 C HART 1. IBM PC DB25 C ONNECTOR TO .
485DSS3298 Manual 1 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Chapter 1: HARDWARE Introduction The RS-485 Distributed Smart Switch (485DSS) connects one RS-232 device to an RS-485 multi-node network as shown in Figure 1.
2 485DSS3298 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Specifications Model: 485DSS Size: 4.
485DSS3298 Manual 3 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 RS-232 Port The RS-232 DTE port is an asynchronous port that supports TD and RD signals. In order to make the proper connections to the RS- 232 port.
4 485DSS3298 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 RS-422/485 Wiring RS-485 receivers also have an enable/disable control line. The 2W/4W jumper selects when to enable and disable RS-485 receiver.
485DSS3298 Manual 5 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 SD control automatically enables the RS-485 driver by sensing the leading edge of the first character transmitted to the RS-232 port.
6 485DSS3298 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Figure 3. RS-485 Wiring Diagram 4-Wire Mode To configure the 485DSS for RS-485 or 422 four-wire mode, place the jumper in the 4 W position.
485DSS3298 Manual 7 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Figure 4. RS-422 Wiring Diagram RS-485 and RS-422 Termination A jumper labeled “TERM” provides termination for the RS- 485/422 receiver.
8 485DSS3298 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Operation The host computer of the RS-485 network cont rols each 485DSS on the network by sending them command messages.
485DSS3298 Manual 9 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Three red LED indicators are loca ted on top of the 485DSS. The LED labeled TD flashes when the RS-232 device is transmitting data. The LED labeled RD flashes when data is being received by the 485DSS from the RS-485 network.
10 485DSS3298 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 The Command String All Command Strings consist of four ASCII characters. The first character is the start of message character, " X-off " (decimal 19).
485DSS3298 Manual 11 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 If you were writing a program in BASIC to turn on address 10 decimal (0A hexadecimal.
12 485DSS3298 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 in the address field specifies all 485DSS's on the network. This command temporarily turns off (disconnect) the RS-232 port from the network while transmitting the reply message.
485DSS3298 Manual 13 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Example: A unit with a decimal address of ten will have a delay of 220 milliseconds [(10 x 0.
14 485DSS3298 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 If you were writing a program in BA SIC to request status from address 5 decimal, yo.
485DSS3298 Manual 15 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Example 1: To set the address to decimal 21 (15 hex), you would turn on switches 1, 3, and 5 (1 + 4 + 16 = 21).
16 485DSS3298 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Chapter 2: SOFTWARE Description The Distributed Smart Switch Demonstration (DSS_DEMO) Program (IBM PC or Compatible) provides the user with examples of how to receive and transmit commands to the 485DSS.
485DSS3298 Manual 17 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Running Demonstration Program Before you can run the demonstration program, you must run the install program described in the “Hard Drive Installation” section above.
485DSS3298 Manual Appendix A A- 1 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Appendix A: ASCII Character Codes DECIMAL to HEX to ASCII CONVERSION TA.
485DSS3298 Manual Appendix B B- 1 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Appendix B: Decimal/Hexadecimal/Conversions The decimal (base 10) numbering system represents each position in successive powers of 10, with each decimal symbol having a value from 0 to 9.
B- 2 Appendix B 485DS32985 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Hexadecimal to Decimal Conversion: Each “Hex digit” is the decimal equivalent value of the hexadecimal symbol. Example: Convert 10FC hexadecimal to decimal.
485DSS3298 Manual Appendix C C- 1 B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Appendix C: Cable Charts These charts indicate some common cable wiring based on the 485DSS RS-232 and RS-485/422 ports. Refer to the Port Configuration section of this manual for more information.
C- 2 Appendix C 485DS32985 Manual B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Chart 4. RS-232 DCE Device w/DB9 Connector to 485DSS RS-232 (DTE) Port .
FCC Class A Equipm ent Statem ent FEDERA L COMM UNI CA TIONS COM MISSI ON RA DIO FREQ UENCY I NTERFA CE STA T EMENT Class A Equipmen t This equipm ent has been test ed and found to com ply wi th the limits for Class A digital device, pur suant to Part 15 of the FCC Rules.
デバイスB&B Electronics 485DSS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：
B&B Electronics 485DSS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B&B Electronics 485DSS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。B&B Electronics 485DSS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。B&B Electronics 485DSS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。
B&B Electronics 485DSS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B&B Electronics 485DSS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、B&B Electronics 485DSS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B&B Electronics 485DSS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。
