ITech IT6922A - RS232 Interface Setup

Remote Operation Mode
Copyright ©ITECH Electronics Co., Ltd. 33
Chapter5 Remote Operation Mode
IT6900 series power supply has three standard communication interface:
RS232, USB, GPIB, the user can choose to any one of them to
implement a communication with the computer.
5.1 RS232 interface
There is a DB9 connector at the rear of the power supply, when connect to
computer, you need to connect a cable with COM port on both side. To active
connection, you need to set the front panel composite key +
I-setI-set
key configuration settings the same as computer configuration settings.
RS-232 interface can be used to program all of the SCPI orders.
NOTE
The RS232 settings must match the settings in front panel system information. If any
change, please press +
I-setI-set
key.
RS-232 data format
RS-232 data is a 10-bit words which has a start bit and a stop bit. The start bit
and stop bit can’t be edited. However, you can select the parity items with
+
I-setI-set
key on the front panel. Parity options are stored in nonvolatile
memory.
Baud Rate
The front panel +
I-setI-set
button allows the user to select a baud rate
which is stored in the non-volatile memory: 4800 /9600/ 19200 /38400/
57600 /115200.
RS-232 connection cable
Use a RS232 cable with DB-9 interface, RS-232 serial port can connect
with the controller (eg PC). Do not use blank Modem cable. Table 2-2
shows the plug pins.
If your computer is using a RS-232 interface with DB-25 connector, you
need a adapter cable with a DB-25 connector at one end and the other
side is a DB-9(not blank modem cable)