Xinje TP Series - Page 8

4
1. Download communication port
The main functions of the port：
 Download: Connect with PC to download program;
 Communication: Connect with PLC, printer, frequency converter etc, as a
communication port.
Pins of download port：
Pin
Name
Meaning
1
NC
Unused terminal
2
RXD
RS232 receive
3
TXD
RS232 send
4
A
RS485 communication “+” signal
5
GND
Signal ground
6
BUSY
Busy signal
7
B
RS485 communication “-” signal
8
NC
Unused terminal
9
NC
Unused terminal
(1) Download function
When you use download function of TP series, please use Xinje special download cable:
Before user download a program, please make sure your PC has installed multiport serial
card or USB-RS232 convertor, and connect cable correctly, click “ ” button in Touchwin
software, then you could download data successfully, below are the pin definitions:
PC serial Port (COM) Download Port (TP series)
Connection diagram (Normal download)
If the connection between PC and HMI is correct, but still can’t download, user
Pin
1
2
3
4
5
6
7
8
9
RXD
TXD
GND
RTS
NC
NC
B
BUSY
GND
A
TXD
RXD
NC
9
8
7
6
5
4
3
2
1
Name
Pin
Name