Inspection and Installation
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2
RXD, receive data
3
DGND, ground
RS–232 Configuration
When you purchase the interface accessory and successfully insert it into the
corresponding position on the rear panel of the instrument, the RS–232 menu
item will appear in the System menu. The specific steps are as follows:
1.
Ensure that the instrument's power switch is off, that is, the instrument is
in Power Off state.
2.
Insert the separately purchased RS–232 interface card into the card slot on
the rear panel of the instrument.
3.
Connect the instrument to the computer via an RS–232 cable. After the con-
nection is successful, turn on the power switch of the instrument.
4.
Press the composite keys [Shift]+ (System) on the front panel to
en- ter the system menu.
5.
Select Communication and press [Enter].
6.
Select RS232 and press [Enter].
7.
Set the relevant communication parameters in turn, and press [Enter].
RS-232 Troubleshooting
If you meet some problems when communicating with PC by RS-232 interface,
please check the following items:
•
Check that whether the baud rate of the computer and instrument are
the same;
•
Make sure the correct cable and adapter are connected. Note that
internal wiring may not be correct even if the cable has a suitable plug;
•
The cable must be connected to the correct serial ports (COM1, COM2,
etc) of PC.
10.6 Commonly Used Commands Overview
The IT7900 series AC/DC power supply can be connected with the remote
control device through the communication interface to realize the remote
operation instrument by sending SCPI commands. This series of power supplies
provides a detailed commands reference IT7900 Programming Guide.
Listed below are common commands for users to quickly implement common
operations. For more command information, refer to the corresponding
commands reference.
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