HM Series Connection Manual
5. Make of Download Cable
5.1. To Download Application via Serial
Ports
To download application, this mode must be under system utility; otherwise, the
editing software will show “Communication Error”. Each of the communication
port of HMI can be used. Please see the following wiring diagram for reference:
COM1 ( RS232 )
FG FG
3
2
5
RXD
TXD
GND
2
3
5
TXD
RXD
GND