Communication Between Power Supply And Pc - Saluki SPS8 Series User Manual

Note: It will not work if you connect the DB9 interface connector of the power supply to the RS232 interface
connector of computer directly by a standard RS232 cable. Please use M131 to connect them.

5.2 Communication between Power Supply and PC

The DB9 interface connector on the rear panel of the power supply can be transferred to the interface connector
of the computor through the voltage level converter cable (M131/M132/M133). The following instructions can
help you understand how to control the output of power supply by PC.
1. Communication Setting
Before using the remote operation mode, please make sure that the baudrate and communication address in
power supply is the same as that in the computer software; otherwise, the communication will fail. You can
change the baudrate and communication address from the front panel or from computer.
(1) Baudrate: 9600(4800, 9600, 19200, 38400, which are selectable from the menu on the front panel of
power supply).
(2) Parity: NONE (NONE, EVEN, ODD)
(3) Data bit: 8, Stop bit: 1(fixed value)
2. DB9 Serial Interface
The output of DB9 interface on the rear panel of the power supply is TTL voltage level, so the voltage level
convertor cable (M131/M132/M133) must be applied before connecting the DB9 interface with the serial
interface on PC.
3. The Difinition of the DB9 Interface
Diagram 5.3 M132
Diagram 5.4 DB9 Serial Interface
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