RS-232C to RS-485 Converter

AD-8551R

Modbus RTU available

Multiple balances and scales can be connected to a PLC, HMI and PC
Two selectable communication protocols (Modbus-RTU, Command mode)
Up to a maximum of 31 sets can be connected to a PLC or PC
Din rail mounting type

http://www.aandd.jp

Connection example

Connectable weighing instruments

RS-485(Modbus RTU or Command mode)

Weighing module

AD-4212A, AD-4212B, AD-4212C, AD-4212D

Analytical balance

BM, HR, HR-A, HR-i, HR-AZ, GH, GR

Precision balance

EJ, EJ-B, FX-i , FZ-i, GX, GX-A, GX-K, GF, GF-A, GF-K, GP

Compact balance

EK-i, EK-L, EW-i

ScaleFG, HV-C, HV-CP, HV-G, HW-C, HW-CP, HW-G

Scale

HV-CWP, HW-WP, SC, SE, SW

Counting scale

FC-i, HC-i, FS-i

RS-232C

PLC

HMI* The AD-8551R can be powered by the AD-4212C, AD-4212D, FX-i, FZ-i,RS-232C

GX-A, GF-A, HR-A, and HR-AZ.
A power supply is required when connecting the AD-8551R to other models.
* The AD-8551R can be connected to the AD-4212C and AD-4212DPCwith a standard accessory cable.
Other models require an optional cable.
* Please refer to the instruction manual for details on the connection method.

RS-232CSpecification

Power supply voltage

DC 12 to 24 V +10% -15%

Power consumption

2 W Max.

Interface

RS-485 ×1 (for connecting to control equipment)
RS-232C ×1 (for connecting to weighing devices)

Operating conditions-10ºC to +50ºC Max 85 %RH (no condensation)

External dimensions

35.3 (W)×110.0 (H)×101.3 (D) mm

Accessory

RS-485 connector (power clamp wire mount socket )MassApproximately 170 g

RS-232C

Max. 31 sets*RS-485 connecter 3M 35505-6200-A00GF Branch connector 3M 35715-L010-A00AKCommunication status and error display

Unit mm

3,535.3

101.3
95.8

AD-8551R

39,4Modbus RTU

34,5

110

The communication status can always be understood by utilizing the LEDs
RUN

Lit : Power on

36,1

Blinking : Incorrect RS-485 or RS-232C settings
RXD

Blinking : The AD-8551R is receiving data from a balance or scale

SD

Blinking : The AD-8551R is sending data to a PLC or PC

RDBlinking : The AD-8551R is receiving data from a PLC or PC

Appearance and/or specifications subject to change for improvement without notice.

A&D Company, Ltd.

3-23-14 Higashi-Ikebukuro, Toshima-Ku, Tokyo, 170-0013, Japan Tel: +81 3-5391-6132 Fax: +81 3-5391-1566 http://www.aandd.jp

A&D Engineering, Inc.

1756 Automation Parkway, San Jose, CA 95131, U.S.A. Tel: +1 408-263-5333 Fax: +1 408-263-0119

A&D Australasia Pty Ltd.

32 Dew Street, Thebarton, South Australia 5031, Australia Tel: +61 8-8301-8100 Fax: +61 8-8352-7409

A&D Instruments Ltd.

Unit 24/26 Blacklands Way, Abingdon Business Park, Abingdon, Oxfordshire, OX14 1DY, United Kingdom Tel: +44 1235-550420 Fax: +44 1235-550485<German Sales Office>Hamburger Straße 30, D-22926, Ahrensburg, Germany Tel: +49 4102-459230 Fax: +49 4102-459231

A&D Korea Ltd.

8F Manhattan Bldg., 33, Gukjegeumyung-ro 6-gil, Yeongdeungpo-gu, Seoul, 07331, Korea Tel: +82 2-780-4101 Fax: +82 2-782-4280

A&D Rus Co., Ltd.

Vereyskaya Str. 17, 121357, Moscow, Russia Tel: +7 495-937-33-44 Fax: +7 495-937-55-66

A&D Instruments India (P) Ltd.

509 Udyog Vihar Phase V Gurgaon-122 016, Haryana, India Tel: +91 (124) 471-5555 Fax: +91 (124) 471-5599* AD8551R-ADCC-01-AD1-202000