User`s guide

Introduction to Programming

GPIB Capabilities of the DC Source

All dc source functions except for setting the GPIB address are programmable over the GPIB . The IEEE

488.2 capabilities of the dc source are listed in the Specifications Table in Appendix A.

GPIB Address

The dc source operates from an GPIB address that is set from the front panel. To set the GPIB address,

press the Address key on the front panel and enter the address using the Entry keys. The address can be

set from 0 to 30. The GPIB address is stored in non-volatile memory.

ADDRESS <value> Enter a value to set the GPIB Address

RS-232 Capabilities of the DC Source

The dc source provides an RS-232 programming interface, which is activated by commands located

under the front panel Address key. All SCPI and COMPatibility commands are available through RS-232

programming. When the RS-232 interface is selected, both the GPIB interface and the optional Agilent

14575A Remote Front Panel interface is disabled.

The EIA RS-232 Standard defines the interconnections between Data Terminal Equipment (DTE) and

Data Communications Equipment (DCE). The dc source is designed to be a DTE. It can be connected to

another DTE such as a PC COM port through a null modem cable.

NOTE: The RS-232 settings in your program must match the settings specified in the front panel

Address menu. Press the front panel Address key if you need to change the settings.

RS-232 Data Format

The 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. The following parity options are selectable using the front panel Address key:

EVEN Seven data bits with even parity

ODD Seven data bits with odd parity

MARK Seven data bits with mark parity (parity is always true)

SPACE Seven data bits with space parity (parity is always false)

NONE Eight data bits without parity

Parity options are stored in non-volatile memory.

Baud Rate

The front panel Address key lets you select one of the following baud rates, which is stored in non-

volatile memory: 300 600 1200 2400 4800 9600