Xinje XD Series User Manual page 264

3. make the program according to the descriptions in chapter 6-3-3.
Read temperature: " : " "R" "T" "CR"
" : " -------------- data start
"R" --------------- read
"T" --------------- temperature
"CR" ------------- enter, data end
Program:
M0
Read
switch
M0 SM162
Read
Port 2 RS232
switch
sending flag
When trying to communicate between PLC and other intelligent devices, it is suggested to use
serial debugging tool to determine the data format of communication, that is, protocol. The
advantages of this method are: the serial debugging tool is easy to modify and flexible to use;
after the serial debugging tool determines that communication can be successful, the PLC
MOV
D0: ： ascii code
MOV
D1： R ascii code
MOV
D2： T ascii code
MOV
D1： CR ascii code
SEND D0
D0： : ascii code
RCV
D10：Receive starting
register
263
H3A D0
0
H52 D1
0
H54 D2
0
H0D D3
0
K4 K2
0
D10 K4 K2
0