33
PIN
Description
1
-
2
Transmit Data
3
Receive Data
4
-
5
GND
6
-
7
-
8
-
9
-
Figure 18 - RS-232 Pin out
A straight pin-to-pin DB9 female to DB9 male serial cable is required for using the RS-232
interface. Do not use a null modem or crossover DB9 serial cable.
Follow the steps below to configure the power supply for RS-232 operation:
1.
From the
Config
menu, select
Communication
and press the
button.
2.
Press the
keys until
RS-232
is blinking and press the
button.
The configurable options are:
Baud rate:
9600 (default), 19200, 38400, 57600, 115200.
Parity/data bits: N
one/8 bits (default),
E
ven/8 bits,
O
dd/8 bits.
Address:
Single, Mux
3.
Use the
keys to select the option and the
keys to change settings. When
all three options are set press the
button.
4.
If MUX mode has been selected specify the ADDR using the keypad or
and press
the
button.
Note: The RS-232 interface does not have a flow control mechanism. The
programmer should be aware of this limitation and allow sufficient command
process time. If the remote commands are sent too fast the power supply’s internal
buffer may overrun and cause a communication error. Therefore, adding a delay
between commands to allow for sufficient time to process commands is required.
5.
All serial settings must match the settings configured on the PC in order for
1
2
3
4
5
6
7
8
9
