RS - 232
plug pin
Pin number Description
1
2
3
4
5
6
7
8
9
Connectionless
TXD, transmit data
RXD, receive data
Connectionless
GND
Connectionless
Connectionless
Connectionless
Connectionless
RS-232 troubleshooting
If the RS - 232 connection has a problem, check the following aspects:
The computer and power supply must be installed with the same baud rate, the same parity
bit, the same data bit and the same flow control options. Pay attention to power
configuration into a start bit and a stop bit. (These value is fixed.)
As the description of the RS - 232 connector
,
you must use the correct interface cable or
adapter. Attention even if cable have suitable plug, internal wiring also may be wrong.
Communication
settings
You should first of all make power supply matching the PC of the following parameters
before communication operation.
Baud rate: 9600(4800
、
9600
、
19200
、
38400
、
57600
、
115200). You can go through the panel
into the system menu, setting communication baud rate.
Data bits: 8
Stop bit: 1
Parity: (none,even,odd)
EVEN
ODD
NONE
Eight data bits have even check
Eight data bits have odd check
Eight data bits have no check
The machine address: (0 ~ 31, the factory a value of 0)
33
USER MANUAL
