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Rs-232c communication specifications, Troubleshooting, Possible problems – Tanita WB-110MA User Manual

Page 7

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Specifications

Names and connection methods for signal lines

Weighing Mode

BMI Mode

Communication standard

EIA RS-232C

Communication method

Asynchronous method

Signal speed

2,400 baud

Data bit length

7 bit

Parity

EVEN

Stop bit

1 bit

Terminal no.

Signal name

1
2

TXD

3

RXD

4
5

GND

6
7
8
9

• An RS-232C connector (D sub 9 pin female) is attached to the side of the display box.
• When connecting the display box with a personal computer, etc., please use an RS-232C straight cable.
• Use the RS232C cable ahorter than 3m long.

When receiving 4 bytes of data as indicated in 1-1 while using the scale in weighing mode, weight data will be output in 14 bytes, as indicated in 1-2.

While the scale is used in BMI mode, the output data will vary depending on the form of the received data.
ቢ When receiving 4 bytes of data, as indicated in 1-1, the scale will calculate your BMI using the currently input height figure, and 26 bytes

of data will be output, as indicated in 2-1 or 2-2, depending on the measurement unit.

ባ When receiving 11 bytes of data, including measurement units and height figures, in the form indicated in 1-2 or 1-3, the scale will

calculate your BMI using these figures, and 26 bytes of data will be output, as indicated in 2-1 or 2-2, depending on the measurement
unit.

Details of Weighing Mode Transmission Data

Byte nos. 1-2

Byte nos. 5-10

Byte nos. 3-4

Byte nos. 11-12
Byte nos. 13-14

Header

Separator

Weight data

Measurement units

Terminator

2 bytes fixed

2 bytes fixed
6 bytes fixed
2 bytes fixed
2 bytes fixed

SD: Unstable S_: Stable

SI: Overload, etc.

2 spaces

Right-aligned

Kg:kg

CR+LF

1-1 Reception data

ƽ

D R

CR LF

1

2

3

4

1-2 Transmission data

S D

7 5

.

0 k g

CR LF

1

2

3

4

5

6

7

8

9

10 11 12 13 14

1-1 Reception data

D R

CR LF

1

2

3

4

1-2 Reception data (height data when using kg)

*Please input 90-99cm height data as 090-099.

D H k g

1 8 0

CR LF

1

2

3

4

5

6

7

8

9

10 11

2-1 Transmission data (kg/cm)

S D

7 5

.

0 k g

,

1 8 0

,

2 3

.

1

CR LF

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Details of BMI mode transmission data

Byte nos. 1-2

Byte nos. 5-10

Byte nos. 3-4

Byte nos. 11-12

Byte nos. 13

Byte nos. 14-18

Byte nos. 19

Byte nos. 20-24
Byte nos. 25-26

Header

Separator

Weight data

Measurement units

Separator

Height data

Separator

BMI data

Terminator

2 bytes fixed

2 bytes fixed
6 bytes fixed
2 bytes fixed

1 byte fixed

5 bytes fixed

1 byte fixed

5 bytes fixed
2 bytes fixed

SD: Unstable S_: Stable

SI: Overload, etc.

2 spaces

Right-aligned

Kg:kg

1 comma

Right-aligned

1 comma

Right-aligned

CR+LF

12

4. RS-232C Communication Specifications

GB

13

Problem

Solution

The unit does not turn on when the

key is pressed.

•When Using with the AC Adapter

Ensure that the AC Adapter cable is properly connected with the Display Unit. Ensure

that the AC Adapter is correctly inserted in the mains DC jack.

•Using dry cell batteries

The batteries may have run out. Confirm that the equipment is working by using the

AC Adapter or new batteries.

Measurement is not correct.

Measurement does not become stable.
Display turns on and off.

•Please confirm that all the adjustable feet are resting on a level surface.

•Measurement may be impossible in the case of excessive vibration. Use the equipment

in another place.

is displayed.

•It is possible that the maximum weight capacity has been exceeded. Please stop

measuring.

is displayed.

•Do not stand on or put objects on the Platform before starting measurement. Start

measurement after confirming there is nothing on the Platform.

If problems occur, please refer to the following instructions. If the problem persists contact your nearest Tanita sales or
repair center.

a

Possible Problems

5.Troubleshooting

This manual is related to the following products: