Single Channel Digital Weighing Module

Single channel digital weighing module

The Single Channel Digital Weighing Module uses 24 bit ∑-△ADC chip,and the analog signal of bridge load cell is converted into digital signal. Suitable for 18-30vdc power supply system. 24V power supply is recommended.

Application

This product also has the function of sensor circuit detection, that is, when the sensor is not connected or the sensor is faulty (including the wiring falling off, etc.), the corresponding alarm will be given [effective when only one sensor is connected to each channel].

 

The Single Channel Digital Weighing Module uses 24 bit ∑-△ADC chip,and the analog signal of bridge load cell is converted into digital signal. Suitable for 18-30vdc power supply system. 24V power supply is recommended.

 

  • It can prevent RFI / EMI interference and has strong EMC characteristics;
  • 18-30v DC supply
  • High speed 24 bit ∑-△ADC sampling, more than 500Hz sampling, control output and sampling interval synchronization;
  • Complete sensor fault detection function, such as signal overrun, module sampling fault, sensor line connection fault, etc;
  • Complete communication interface,Standard RS 232 and 485;

Advantage

Modbus Communication protocol

The default set is 19200,1 start bit,8 data bit,1 stop bit,none[9600,8,N,1],All the  parameters are 32-bit data

Name

Default(Range)

Describe

Address

Weigh

 

Write 0:Zero;Write other values,means input the weight on scale. If the weight is 2 decimal points and the weight is 10.00, write 1000.

1

AD

 

 

7

Other state

 

AD fault。0,1bit,The excitation line may break;2 bit,overflow,Maybe the sensor is broken or the signal wire is broken;3 bit,Module error.

11

Zero

0(0-999999)

Saved zero AD values.

1005

Coefficient

1000(1-999999)

Coefficient formed at full calibration.

1007

Filter

16(0-19)

The larger the value is, the better the filtering effect is, but the weight display lags behind.

1013

Division

0[0~5]

0:1  1:2  2:5   3:10   4:  20  5:50

1017

Dyn.Range

0.01(0.00-99.99)

When this value is greater than 0, it starts to judge whether it is stable.

1019

Dyn.Time

0.30(0.00-9.99)

During this time, if the weight change is within the stable range, it will be stable.

1021

Creep Range

0.00(0.00-99.99)

When this value is greater than 0, creep correction is carried out.

1023

Creep Time

10.00(0.00-99.99)

In this time, the weight change is in the Creep Range and is stable, so the creep correction is carried out.

1025

Zero Range

0.00(0.00-99.99)

When the value is greater than 0, the auto zero operation is performed.

1027

Zero Time

1.00(0.00-9.99)

During this time, if the weight is within the range and is stable all the time, it will be automatically set to zero. Continuous stability is set to zero only once.

1029

Address

1(0-128)

 

1031

Baud of 232

1(0-4)

0:9600   1:19200   2:38400   3:57600   4:115200

1033

Check of 232

0(0-2)

0:None   1:Even   2:Odd  

1035

Function of 232

0(0-9)

0:RTU   1:Send   Other:Unused  

1037

Order of 232

0(0-3)

0:1234   1:2143   2:3412   34321

1039

Baud of 485

1(0-4)

0:9600   1:19200   2:38400   3:57600   3:115200

1041

Check of 485

0(0-2)

0:None   1:Even   2:Odd    

1043

Function of 485

0(0-9)

0:RTU   1:Send  2:TCP(Valid with Ethernet module)   Other:Unused  

1045

Order of 485

0(0-3)

0:1234   1:2143   2:3412   34321

1047

Active sending interval

200(1-1000)

Unit is ms

1049

YouTube

Parameters Table

Measurement signal

-20mV~20mV,Each can drive 6 load cells with 350 ohm

Sampling frequency

500Hz

Accuracy

III Level

Resolution

1/500000

Communication

rs 232,rs 485

Nonlinearity

0.005%FS

Power

10-30VDC(Sensor voltage 5V)

Weight

About 0.2kg

Dimensions

100*64*24 mm

Power waste

< 3W

Temperature

-20~+65℃

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