Rs-232C Communication Specifications - Tanita WB-100 Instruction Manual

6. RS-232C Communication Specifications

■ Specifications
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
● An RS-232C connector (D sub 9 pin male) is attached to the side of the display box.
● When connecting the display box with a personal computer, etc., please use an RS-232C cross cable.
■ Weighing Mode
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 with lb (pound) measurement units, the weight data will be output in lbs (pounds).
1-1 Reception data
1 2 3 4
D R
CR LF
1-2 Transmission data
1 2 3 4 5 6 7 8 9 10 11 12 13 14
S D 7 5 . 0 k g
CR LF
■ BMI Mode
While the scale is used in BMI mode, the output data will vary depending on the form of the received data.
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.
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 calcu-
late 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.
1-1 Reception data
1 2 3 4
D R
CR LF
1-2 Reception data (height data when using kg)
1 2 3 4 5 6 7 8 9 10 11
D H k g 1 8 0
CR LF
*Please input 90-99cm height data as 090-099.
1-3 Reception data (height data when using lb)
1 2 3 4 5 6 7 8 9 10 11
D H L b 5 . 1 1 0
CR LF
* Height data in ft. (feet) and in. (inches) will appear as follows.
5 feet, 11.0 inches will appear as 5.110.
* When INCH is 1 figure less than 10 inch, please put in 0 and input by 2 figures.
e.g. 2inch → 02 inch
2-1 Transmission data (kg/cm)
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
S D 7 5 . 0 k g ,
2-1 Transmission data (lb/ft. in)
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
S D 1 6 5 . 4 L b , 5 . 1 1 0 ,
8
■ Names and connection methods for signal lines
Terminal no. Signal name
1
1
2 RXD
3 TXD
4
5 GND
6
6
7
8
9
Details of Weighing Mode Transmission Data
SD: Unstable S_: Stable
Byte nos. 1-2 Header 2 bytes fixed
Byte nos. 3-4 Separator 2 bytes fixed
Byte nos. 5-10 Weight data 6 bytes fixed
Byte nos. 11-12 Measurement units 2 bytes fixed
Byte nos. 13-14 Terminator 2 bytes fixed
Details of BMI mode transmission data
SD: Unstable S_: Stable
Byte nos. 1-2 Header 2 bytes fixed
Byte nos. 3-4 Separator 2 bytes fixed
Byte nos. 5-10 Weight data 6 bytes fixed
Byte nos. 11-12 Measurement units 2 bytes fixed
Byte nos. 13 Separator 1 byte fixed
Byte nos. 14-18 Height data 5 bytes fixed
Byte nos. 19 Separator 1 byte fixed
Byte nos. 20-24 BMI data 5 bytes fixed
Byte nos. 25-26 Terminator 2 bytes fixed
1 8 0 , 2 3 . 1
CR LF
2 3 . 1
CR LF
5
9
SI: Overload, etc.
2 spaces
Right-aligned
Kg:kg Lb:lb
CR+LF
SI: Overload, etc.
2 spaces
Right-aligned
Kg:kg Lb:lb
1 comma
Right-aligned
1 comma
Right-aligned
CR+LF
9