User Manual

Chapter 9

Remote Operation

There are four types of communication interfaces available:USB,Ethernet,GPIB and RS232.You can choose any

one of them to communicate with a PC.

9.1 RS-232 Interface

RS232 interface:use a cable with two COM interface (DB9) to connect power meter and PC. It can be activated

by menu key on the front panel.All SCPI commands are available through RS-232 programming.

• RS-232 data is a 10-bit word with one start bit and one stop bit. The number of start and stop bits is not

programmable.

• Baudrate Available baudrate:4800 9600 19200 38400 57600 115200

• RS-232 connection The RS-232 serial port can be connected to the serial port of a controller (i.e.,

personal computer) using a straight through RS-232 cable terminated with DB-9 connectiors. Do not use

a null modem cable. Table 9.1 shows the pinout for the connector.

If your computer uses a DB-25connector for the RS-232interface,you will need a cable or adapter with a DB-25

connector on one end and a DB-9 connector on the other,wired straight through(not null modem).

RS-232

9.1.1 RS-232 troubleshooting

If you are having trouble communicating over the RS-232 interface,check the following: The computer and the

power meter must be congured for the same baudrate, parity, number of data bits,and ow control options.

Figure 9.1: RS-232 DE-9 Connector