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Contents

1

Getting Started

.............................................................................................................. 3

2

Weigh Scale Mode

.......................................................................................................... 7

3

Analysis Mode

............................................................................................................. 11

4

Using the PC Software

................................................................................................... 14

5

Serial Console

............................................................................................................. 18

6

Hardware

................................................................................................................... 20

Appendix A

Schematic and Layout

........................................................................................... 23

List of Figures

1

ADS1x31REF Controls and Connectors

................................................................................. 3

2

4-Wire Load Cell to Terminal Block

...................................................................................... 4

3

6-Wire Load Cell to Terminal Block

...................................................................................... 5

4

4-Wire Load Cell to Header

................................................................................................ 5

5

6-Wire Load Cell to Header

................................................................................................ 5

6

ADS1231REF PC Software Display

.................................................................................... 15

7

ADS1x31REF Average Data

............................................................................................. 16

8

ADS1x31REF Hardware Block Diagram

............................................................................... 20

9

ADS1x31REF PCB

—Top Side

.......................................................................................... 25

10

ADS1x31REF PCB

—Layer 1

............................................................................................ 25

11

ADS1x31REF PCB

—Layer 2

............................................................................................ 26

12

ADS1x31REF PCB

—Bottom Side

...................................................................................... 26

13

ADS1x31REF Schematic

—ADC

........................................................................................ 27

14

ADS1x31REF Schematic

—MCU

........................................................................................ 27

15

ADS1x31REF Schematic

—USB

......................................................................................... 28

List of Tables

1

Unit Conversion Factors and Display Formats

.......................................................................... 8

2

Parameters in Configuration Mode

....................................................................................... 9

3

Modes and Example Displays

........................................................................................... 11

4

Voltage Display Ranges

.................................................................................................. 12

5

Parameters in Analysis Mode

............................................................................................ 13

6

Console Mode Commands

............................................................................................... 19

7

Load Cell Header Pinout

................................................................................................. 21

8

Terminal Block Pinout

..................................................................................................... 22

9

ADS1x31REF Bill of Materials

.......................................................................................... 23

2

ADS1131REF and ADS1231REF

SBAU175A

– July 2010 – Revised August 2011

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