A&D HV-G Series instruction manual 16 RS-232C Serial Data Interface

Page 49

16 RS-232C Serial Data Interface

RS-232C interface has the following two modes.

Stream mode Outputs data countinuously and can be used for printing data.

Command mode Controls the scale using commands from a computer.

It is necessary to set the parameters of the “Baud rate ( f4 )”,

”Output mode ( f5 )”, “Format ( f15 )” in the function table in advance.

There are option cables as follows:

AX-KO557A RS-232C cable, D-sub 25 pin, 2m

AX-KO1786-200 RS-232C cable, D-sub 9 pin, 2m

Transmission system

 

EIA RS-232C

 

 

 

Transmission

 

Asynchronous, bi-directional, half-duplex

Data format

 

Baud rate:2400, 4800, 9600 bps

 

 

 

Data:

7 bits

 

 

 

 

Parity:

1 bit, Even

 

 

 

 

Start bit

1 bit

 

 

 

 

 

Stop bit

1 bit

 

 

 

 

 

Code

ASCII

 

 

 

 

Terminator

CR LF

(CR: 0D[H], LF: 0A[H])

Pin Connections

 

 

 

 

 

 

 

 

Pin No.

Signal name

Direction

Description

 

 

1

-

 

 

 

 

 

2

RXD

 

Input

Receive data

 

3

TXD

 

Output

Transmit data

 

 

4

-

 

 

 

 

5

SG

-

 

Signal ground

 

6

-

 

 

 

 

7

DSR

 

Output

Data set ready

 

 

 

 

 

 

 

Circuit

HV-G Instruction Manual Page 48

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Contents HV-G Series Contents Page Compliance with FCC rules ComplianceOutline and Features Unpacking Type Products Accessories Accessories and Options listOptions List Order code or option name AccessoriesPrecautions for Operating the Scale Precautions for Installing the ScalePrecautions for Storing the Scale Installing the Scale Installing the Batteries for Type L Names OFF Display and SymbolsPage Switches Page Turning the Scale On/Off & Basic Weighing Basic OperationMemo Type L with Batteries Semi-Automatic Tare Input by Weighing Tare and Net DisplayWeighing Range Weighing RangeOperation and Performance Products Weighing RangeMode Switch Changing Unit & Mode Storing a Unit Mass Counting ModeCounting the number of articles Storing a 100% Mass Percentage ModeReading Percentage Accumulation Function Operation and SwitchesFunction table Meaning & Purpose Preparation Setting Parameters Example Operation and Performance ExamplesComparator Sign Comparator FunctionComparison Condition Function table Meaning and PurposeAccumulation function f6 Step If one Has Been selected, press Case Full/Dribble Batch Function Full/Dribble batch sub-function ComparatorHold Parameter and display an item of the full/dribble Switch to display the HI Function Table Meaning and purpose Simple batch function Simple Batch FunctionPreparation Setting Parameters Operation and Performance Examples Calibration Adjusting the Scale Gravity Acceleration Table Gravity Acceleration Correction Complete Calibration ProcedureCalibration of the Zero Point Function Table Procedure for Setting Parameters15.2 Parameter List Function or full/dribble batch function Display Meaning and purposePrinting condition when using option OP-06 for type Function to hold the current display value. When 16 RS-232C Serial Data Interface Format Data FormatFormat Preparation and Performance Examples Stream ModeCancel of tare Command ModeTare Upper limit value Preset tareFinal value Preparation Setting Parameters Options Pin connections Pin No Signal name Direction Description17.1 RS-232C / Relay output / Buzzer OP-03 17.2 RS-422 / RS-485 / Relay output OP-04 Pin No Signal name Direction DescriptionInstalling OP-04 Communication Format Lower limit value ZeroAccumulation data output Reset of Accumulation data and numberAccumulation count output Final valueInternal Printer for Type V OP-06 SpecificationConsumables Installation DisassemblyPerformance Check HV-G series SpecificationsDimensions Page Check Points Before Calling Maintenance MaintenanceRepair This situation Confirm these items
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