Instruction Manual for AandD models including: AD-4329A-03, AD-4329A-03 Multifunctional Weight Indicator, Multifunctional Weight Indicator, Weight Indicator, Indicator
2 2. Specifications AD-4329A-03 RS-422 / 485 interface Transmission Asynchronous, half-duplex Baud rate 600, 1200, 2400, 4800, 9600 bps Data bits 7 bits
AD-4329A-03 RS-422/485 INTERFACE INSTRUCTION MANUAL 1WMPD4003008 © 2014 A&D Company Ltd. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, or translated into any language in any form by any means without the written permission of A&D Company Ltd. The contents of this manual and the specifications of the instrument covered by this manual are subject to change for improvement without notice. 1. Installation Install the AD-4329A-03 option board as described below: 1. Remove the power cord and other cables from the indicator. 2. Remove four screws and four bolts from the rear panel. 3. Remove two slide-rails, one on each side. 4. Pull out the rear panel and main board from the case. Then the connector between the main board and the display board may be disconnected smoothly. 5. Remove two screws and the RS-232C board from the indicator's rear panel. 6. Install the AD-4329A-03 option board on the rear panel from inside. Fasten the board to the rear panel from outside, using the two screws removed in step 5. 7. Connect the option cable to the option board connector and to the main board J3 connector, using much care as to the connector direction. 8. Insert the main board into the both main board guides. Then the connector between the main board and the display board is re-connected. If the rear panel will not close completely, retry step 8 to insert the main board correctly. 9. Attach both slide-rails. Fasten the rear panel using four screws and bolts removed in step 2. AD-4329A-03 option board RS-232C board Main board guide Case Slide-rail Screw Screw Screw Rear panel Bolts Main board guide J3 Main board Note: Do not remove or loosen any screws other than those described above. 1 2. Specifications AD-4329A-03 Transmission Baud rate Data bits Parity bits Start bit Stop bit Code Terminator Number of indicators to be connected Terminal RS-422 / 485 interface Asynchronous, half-duplex 600, 1200, 2400, 4800, 9600 bps 7 bits 1 bit, Even 1 bit 1 bit ASCII CR LF (CR: 0Dh, LF: 0Ah) Max.10 M3 compression terminal Circuit and Pin Connection Bit Format Signal 1 0 RS-422 / RS-485 SDA < SDB RDA < RDB SDA > SDB RDA > RDB Switching between RS-422 and RS-485 Switching between RS-422 and RS-485 is performed by the function setting F-47. For details on the setting procedure, refer to the AD-4329A instruction manual. Item Parameter Description RS-422 / RS-485 f-47 0 f-47 1 RS-422 (Factory setting) RS-485 Data format and commands are the same as those of RS-232C. For details, refer to the description of RS-232C in the AD-4329A instruction manual. 2 Connection example Note: Signal polarities (A, B) of some host computers may be reversed. SG is not available for some host computers. RS-422 RDA RDB Host computer SDA SDB SG RDA RDB AD-4329A SDA Address=1 SDB TRM SG RDA RDB AD-4329A SDA Address=2 SDB TRM SG Terminating resistor (May be built into the host computer.) RS-485 A Host computer B SG RDA RDB AD-4329A SDA Address=1 SDB TRM SG RDA RDB AD-4329A SDA Address=2 SDB TRM SG Terminating resistor (May be built into the host computer.) RDA RDB AD-4329A SDA Address=10 SDB TRM SG RDA RDB AD-4329A SDA Address=10 SDB TRM SG Connect the terminating resistor only to the indictor which is furthest from the host computer. 3Acrobat Distiller 10.1.10 (Windows)