X K 3 1 9 0
–
A26
()
9
Chapter4 Optional function
1.RS232 communication.
(1)Brief introduction
RS232 has 4 kinds of serial communication format of A26
（
see chapter4
），
and there are
4 kinds of baud rate can be set.
All the data are ASCII code
，
each group consists of 10 bits data, 1 start bit, 8 data bits, 1
stop bit. Sent once every 100ms of data. (When the baud rate is 1200 or 2400 baud rate
and communication format is 4 , maybe the interval of the transmission could more than
100ms.)
(2)Wire connecting method
Foot 3 of the air plug on the back of the indicator is TXD output, connect with the foot 2
of the computer 9 pin connector
；
Foot 5 of the air plug on the back of the indicator is GND , connect with the foot 5 of the
computer 9 pin connector
；
(3)Parameter setting
①
Press"1"and "Clear"button in same time in weighing state.
Indicator display
【
bL
】
（
power-saving mode chosen
）
【
*
】
Press
“
clear
”
enter into next optional function chosen.
②
Indicator display
【
Func
】
（
optional function chosen
）
【
*
】
（
0~4
）
0-4 stands for : invalid, RS232 communication, serial port print,scoreboard output,upper
and lower alarming.
Now input
“
1
”
and choose RS232 communication optional function and press "clear"
confirm.
③
Indicator display
【
tSEL
】
（
communication format chosen
）
【
*
】
（
0~4
）
tSEL = 0
：
Communication format 0
；（
detail format see next section
）
tSEL = 1
：
Communication format 1
；
tSEL = 2
：
Communication format 2
；
tSEL = 3
：
Communication format 3
；
Input the communication format required and then press"clear"button confirm.
删除的内容
:
chose
