Longtec TR700 - Page 21

TR700 Instruction Manual
17
Parity bit = 1（non, even or odd）;
Stop bit = 1;
Code standard = ASCⅡcode;
Ending code = CR/LF.
7-bit odd parity, 7-bit even parity, 8-bit no parity, 8-bit odd parity and 8-bit even parity are
optional.
6.4.1.2. Datagram Format
ASCII
Hexadecimal
Description
Status 1
ST
【
53 54
】
Stable
US 【55 53】 Unstable
OL 【4F 4C】 Over load
Status 2 GS 【47 53】 Gross weight
NT 【4E 54】 Net weight
Delimiter “，” 【2C】
Data
（
ASCII
）
0~9
【
30
～
9
】
“+”
【
2B
】
“-” 【2D】
“space” 【20】
“.”
【
2E
】
g
Unit “space”g 【20 67】 kg
“kg” 【6B 67】 T
Note: If there is no decimal point, the 8
th
bit is “space”.
6.4.1.3. Instruction of Zhimei Protocol
Instruction
TR700 output
Description
<ENQ>IDXX<CR><LF>
<ACK>XX<CR><LF> Read the meter’s address
READ ST,GS,+ XXXXX.Xkg
<CR><LF>
Read the actual value
TARE ON<CR><LF>
YES<CR><LF> or NO?
<CR><LF>
Exclude tare
TARE OFF<CR><LF>
YES<CR><LF> or NO?
<CR><LF>
Clear tare
ZERO ON<CR><LF>
YES<CR><LF> or NO?
<CR><LF>
Clear zero
ZERO OFF<CR><LF>
YES<CR><LF> or NO?
Relieve zero
Status 1 Status 2 Data ( polarity, decimal point) Unit Ending
code
S T , G S , + 0 0 0 0 0 0 K g CR LF