AD-8923-BCD Remote Controller (BCD) INSTRUCTION MANUAL 1WMPD4002137
© 2010 A&D Company, Limited. 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, Limited. The contents of this manual and the specifications of the instrument covered by this manual are subject to change for improvement without notice. .
CONTENTS 1. INTRODUCTION ....................................................................................... 2 1.1. Features ............................................................................................... 2 2. DESCRIPTION OF EACH PART .............................................................. 3 2.1. Display ................................................................................................. 4 2.2. Keys .....................................................................
1. INTRODUCTION This manual describes how the AD-8923-BCD remote controller works and how to get the most out of it in terms of performance. Read this manual thoroughly before using the AD-8923-BCD and keep it at hand for future reference. 1.1. Features Connecting the AD-8923-BCD remote controller and the AD-4212C series production weighing unit will enable transmission of the weight data to a PLC using BCD. z Displays the weight data transmitted from the weighing instrument.
2. DESCRIPTION OF EACH PART Display AC adapter input jack DC input terminal Keys BCD connector Accessories FG terminal BCD plug 1 pc. RS-232C connector (D-Sub 9-pin) See the note below. Rear View . Note When the AD-8923-BCD is to be built into a weighing system, be sure to ground the FG terminal. AC adapter 1 pc. AD adapter ID label Please confirm that the AC adapter type is correct for your local voltage and receptacle type.
2.1. Display AD-8923 REMOTE CONTROLLER RESPONSE SLOW STABLE FAST MID. Turns on while the AD-4212C is in the standby mode. STABLE indicator Weighing Unit indicator speed indicators ON:OFF CAL SAMPLE PRINT MODE RE-ZERO z Displays the weight data received. When the unit is “g” (gram), the unit indicator turns on. z When the weight value is stable (the header of the weight data received is “ST”), the STABLE indicator turns on.
3. CONNECTION 3.1. Setting the weighing instrument and the AD-8923-BCD Set the following items so that the weighing instrument and the AD-8923-BCD have the same value for each item. Item Weighing instrument AD-8923-BCD Baud rate 600, 1200, 2400*, 4800, 9600, 19200 bps Data bits, parity 7 bits EVEN* Stop bit 1 bit* Terminator * Data format A&D standard format − Communication control No RTS/CTS control − Data output mode Stream mode − * Factory setting for the AD-8923-BCD.
3.3. Turning the power on As a power supply, an external 24-VDC power supply (24 VDC±10% / 700mA) or a 12-VDC AC adapter can be used. Note When the AD-4212C is used, connecting power to either the AD-8923-BCD or the AD-4212C will supply power to both devices. So, instead of the AD-8923-BCD, using the AC adapter on the AD-4212C will supply power to the AD-8923-BCD. If the power is connected to both, no problems occur because the power to be used is selected automatically.
z Be sure to add a noise filter on the front end of the switching power supply and ground the FG terminal. • This will increase the resistance against noises. z Be sure to ground the FG terminal of the AD-8923-BCD and the AD-4212C. • This will increase the resistance against noises. Cable connection CAUTION Before inserting the power line, make sure that the power to the AD-8923-BCD is turned off.
3.4. Operation z Displays the data transmitted by the weighing instrument connected. z The AD-8923-BCD key functions when connected to a weighing instrument are listed below: (e.g. when the AD-4212C is connected) Model Keys of the AD-8923-BCD ON:OFF Switches between the weighing AD-4212C mode and the standby mode. CAL Enters the calibration mode using a weight. SAMPLE PRINT Switches the Used for the minimum function display. setting mode and calibration mode.
Calibration procedure Calibrates the AD-4212C using the calibration weight. Operation 1. Warm up the AD-4212C for 30 minutes or more with nothing on the pan. RESPONSE 2. Press the CAL key. Cal 0 is displayed. z If you want to cancel calibration, press the CAL key. The display will return to the weighing mode. z If you want to change the calibration mass value, press the SAMPLE key. Press the RE-ZERO key to select the mass value, and press the PRINT key to store it. Cal 0 is displayed. 3.
4. FUNCTION SETTING Function setting specifies the AD-8923-BCD performance. The parameters are stored in non-volatile memory, and are maintained even if the power line or AC adapter is removed. The function setting menu consists of two layers. The first layer is the “Class” and the second layer is the “Item”. Each item stores a parameter. Press the SAMPLE key to select an item and press the RE-ZERO key to change the parameter. Then, press the PRINT key to store the new parameter.
4.1. Display and keys The STABLE indicator turns on to indicate that the parameter displayed is in effect. Selects a class or item. Changes the parameter. When a class is displayed, moves to an item in the class. When an item is displayed, stores the new parameter and displays the next class. When an item is displayed, cancels the new parameter and displays the next class. When a class is displayed, exits the function setting mode and returns to the weighing mode. 4.2.
4.3. Initializing the AD-8923-BCD Initialization restores the function settings of the AD-8923-BCD to factory settings. Operation 1 Turn the power on. - - - - mode display appears. or weighing While holding ON:OFF down 2 While holding down the ON:OFF key, press Press the PRINT key. Clr is displayed. PRINT 3 Press the PRINT key. To cancel this operation, press the CAL key Press 4 Press the RE-ZERO key to select “go”. Press RE-ZERO 5 Press the initialization.
5. RS-232C CONNECTOR The RS-232C cable provided with the AD-4212C can be connected directly. 5.1.
6. BCD OUTPUT CONNECTOR Outputs the weighing data received from the weighing instrument in BCD format, along with the polarity (+/-) and the data status (stable/unstable and over (E display)). Using the STROBE signal, the data can be read easily. BUSY input enables the data to be held or prevents data refreshing during the reading operation. Contact inputs are RE-ZERO and ON/OFF. They have same function as the key switches on the front panel. 6.1.
Input logic Data will be held during ON (when connected to input signal GND). BUSY Switch Switch will be performed with ON (when input connected to input signal GND). - All input, no voltage contact or open collector (connected to 5 V internally) (1)When a switch is used 5, 9, 7 pin +5V FG FG Housing (Cable shield) Input terminal 4.
6.2. Fixing of the Decimal Point Position The AD-8923-BCD can set the display digit and the BCD output digit by setting dpp of the function. When fixing the decimal point position, the BCD output digit does not change if changing the minimum display digit by pressing the SAMPLE key. Example 1）When not fixing the decimal point position.（dpp -） [Factory setting] Key AD-8923-BCD display Balance output Ｓ Ｔ ， ＋ ０ ０ １ ２ ３ ． ４ ６ ， ｇ CR LF RESPONSE STABLE FAST 00012346 MID.
7. TROUBLESHOOTING Symptom eerror 10 appears. - - - - - - (Bar display) remains and the weight value is not displayed. Description Communication settings of the AD-8923-BCD do not match with those of the weighing instrument. Check the settings such as baud rate and parity and correct them as necessary. For details, refer to “3.1. Setting the weighing instrument and the AD-8923-BCD”.
8. SPECIFICATIONS Power supply : External 24-VDC power supply (24 VDC±10% / 700mA) or AC adapter (Output: 12 VDC / 300mA) Please confirm that the AC adapter type is correct for your local voltage and receptacle type. Transmission system : RS-232C, BCD Communications connector : D-Sub 9-pin (male) (RS-232C connector to the weighing instrument) Half pitch 50-pin (female) (BCD connector) External dimensions : 144 (W) X 110 (D) X 72 (H) mm Mass : Approx. 1.0 kg Standard accessories : BCD plug 1 pc.
