Built-in RS-485 Interface, Connection, Terminals | A&D PD4000243

8.2. Built-in RS-485 Interface

The RS-485 interface can use command to control the indicator. The interface can read weighing data or parameters or store parameter to the indicator.

The interface can connect max. 32 units and a personal computer in a communication cable.

These unit is specified by address appended to the command.

Transmission system	EIA RS-485, Asynchronous, bi-directional, half-duplex
Data length	7 bis ot 8 bits
Start bit	1 bit
Parity bit	Odd, Even, not used
Stop bits	1 bit, 2 bits
Baud rate	600 bps, 12000 bps, 2400 bps, 4800 bps, 9600 bps, 19200
	bps, 38400 bps
Line	2 wires (2-balanced wires)
Connection	Max. 32 units
Character code	ASCII code
Terminator	CR, CR LF

The way of Use and Note

When use terminator, connect between SDA and SDB terminals with accessory resister.

If there is not signal ground at host computer, it is not necessry to use the SG terminal.

If the shield cable is used, connect the FG teminal to shield line.

When connecting to RS-232C, Use AD-7491 or converter of RS-232C/ RS-485 on market.

Use multi-droped connection for command mode.

Do not use multi-droped connection in stream mode or jet stream mode.

8.2.1.Connection

RS-485
A	SDA
	SDA
B	SDB
SG	SG
	SG
C.LOOP
FG	Shield

AD-4402 Inside

RE/DE

A

B

SG

Terminals

Interface Circuit

Page 74

AD-4402

Image 76

A&D PD4000243 manual Built-in RS-485 Interface, Connection, Way of Use and Note, Terminals

Contents

Multi Function Weighing Indicator Page Contents AD-4402 Remote Operation 102 Function List 103 10.1.1 Operation Keys Compliance with FCC rules ComplianceCompliance with European Directive Outline and Features Precaution Front Panel Keys Symbols Alphanumeric keys NET Rear Panel AC85V Installation Mounting Indicator Loadcell Output Adjustment for Zero Calibration Zero Point Connecting Loadcell CableAdaptable Compression Terminal Parts Verifying Loadcell Output and Input Sensitivity Verification Example Wiring Power Cord Installing Options Standby Mode Basic OperationKey Operation Examples Cursor Operation Way of Entering a Correction Mode Way of Calling a CodeCase of a Material Code Case of a Recipe Code Way of Entering Menu Status Chart Mode map Calibration Common Calibration ItemsItems for the Actual Load Calibration Items for Digital Span Actual Load Calibration using Mass ESC key Digital Span Calibration without Mass Gravity Acceleration Correction Gravity Acceleration Reference Calibration Error CERR1 Applications Hopper Scale with Material CodeDefinition of Material Code Recalling Material Code Editing Principle Parameters of Material Code Referring next Material Code Editing Full Parameters of Material Code Edit Material Code Search Material Code Delete Material CodeExample of Deleting Total Value Copy Material Code Tare of Material Code Simple Hopper Scale with Recipe Code Definition of Recipe Code Formal Function Construction of Recipe Code Using a Recipe CodeRecalling a Recipe Code Arranging Material Code in Recipe Code Editing Full Parameters of Recipe CodeEdit Name of Recipe Code Search of Recipe Code Copy of Recipe Code Setup System Design of Hopper ScaleOperation and I/O Design Design Example Weighing Mode Contents of Batch Weighing Mode Loss-in-weight Batch Weighing ModeNormal Batching Selection of Normal Batching or Loss-in-weight External Selection Normal batch weighing or Loss-in weightSelection of Batch Weighing Advise Sequential Weighing Mode Normal Batching of Sequential WeighingForecast Control Function Concerning Parameters of the Function Changing the timing of comparison Drawing Normal Batching of Sequential Weighing Loss-in Weight of Sequential Mode Drawing Loss-in Weight of Sequential Weighing Compensation Sequence Drawing Compensation Sequential Entrance Sequence Drawing Entrance Sequence Discharge Sequence Drawing Discharge Sequence Plain Recipe Sequence Weighing a single material code during a recipe sequence Drawing Plain Recipe Sequence Case 1 Direct Gate Control Automatic Selection of Supplying MatCase 2 Gate Control with Supplying Mat Selection Nozzle Control Sequence vacuum cleaner Mixture Sequence Material Safety Check Function Pause and Emergency Stop Restart Sequences from Pause Automatic Free Fall Compensation Real Time Free Fall Compensation Customer Programmed Control Comparison Output Normal Batching of Comparison Function Arbitrary width can be set Drawing Normal Batching of Comparison Function Loss-in Weight of Comparison Function Nn terminal number of the I/O Batch start delay timer Re-Zero Operation Other FunctionsZero Tracking Function Tare Preset Tare Fixed Tare FunctionCustomizing Function Key Key Design Row and Colum Address Customizing Sub DisplayItems to append to sub-display Graphic Display Undoing Accumulation Operation Accumulation OperationClearing Deleting Accumulation Data Error Message and Alarm Kind of Alarm and Error Dispaly can not be zeroed by zero compensation Graphic Status Indicator Memory Backup Interface Control I/O FunctionInterface circuit Input terminal Timing Chart Function assigned to terminals Built-in RS-485 Interface ConnectionWay of Use and Note Terminals Settings of Parameters System Connections Stream Mode Communication Modes General Data Format Weighing data Address 5. A&D Data FormatBroadcast Address Monitor Commands Command ListWrite Commands Control Commands Cetl Response Error Code Ascii Code for AD-4402 Built-in Current Loop Output Communication Modes BCD Output of Option, OP-01 Data FormatConnection Terminals AD-4402 Timing Chart When normal output 01f- 3 without 5 is used Relay Output of Option, OP-02 Terminal List RS-422/485 Interface of Option, OP-03 RS-485 4 Wire Connections RS-422 Connections RS-485 2 Wire Connections Settings of Parameters RS-232C Interface of Option, OP-04 Parallel I/O of Option, OP-05 Analog Output of Option, OP-07 Maintenance Monitor ModeBasic Operation Monitoring Control I/O Function Monitoring Built-in Current Loop Output Monitoring A/D ConverterMonitoring BCD Output of OP-01 Monitoring Relay Output of OP-02 Monitoring RS-422/485 Interface of OP-03 Monitoring RS-232C Interface of OP-04Monitoring Parallel I/O of OP-05 Monitoring Analog Output of OP-07 Test Mode Testing Control I/O FunctionTesting Built-in RS-485 Interface Testing Built-in Current Loop Output Testing A/D Converter Testing BCD Output of OP-01Testing Relay Output of OP-02 Testing RS-422/485 Interface of OP-03 Testing Parallel I/O of OP-05 Testing RS-232C Interface of OP-04Testing Analog Output of OP-07 Kinds of intialization mode Initializing Parameters Prucedure To enter intialization Entering to the Remote Operation Mode Remote Operation Operation Keys Function ListExample of an item Outline of the Function List Options Parameter Settings Referring Parameters Category address Function Function setting General Weighing Parameter List Category 5ub f Key operation Category address Function Function setting General Others Clear all total data for material codes Category Category address Function Function setting Sequence Basic Category address Function Function setting Sequence Control Select a action at batch finish Category address Function Function setting Sequence Timer Second Digit Category address Function Function setting Sequence Setpoint Category address Function Function setting Sequence Total Category address Function Function setting Sequence Safety BCD Terminal name Default choices Lt No Discharge Open the dscharge gate Alarm 0utf-11 Output terminal Category address Function Function setting Serial RS-485 Category Range OP-01 Option BCD Output OP-02 Option Output Relay Output Slot n slot number Category Range Address symbol OP-05 Option Parallel input / output Plural terminals and keys OP-07 Option Analog Output Specifications GeneralAnalog to Digital Unit Display Weighing Connectors and interfacesCode data Standard I/O terminal Standard RS-485 interfaceCurrent loop BCD Output of Option Dimensions Accessories References Abbreviation Ascii Code for AD-4402 Index Shift key 113 Water-resistant panel ﾍﾟｰｼﾞ Tqv wxyww+yxr yus