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Introduction to Programming
HP-IB Capabilities of the DC Source
All dc source functions except for setting the HP-IB address are programmable over the HP-IB. The
IEEE 488.2 capabilities of the dc source are listed in the Specifications Table in Appendix A.
HP-IB Address
The dc source operates from an HP-IB address that is set from the front panel. To set the HP-IB 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 HP-IB address is stored in non-volatile memory.
ADDRESS <value>
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 HP-IB interface and the optional HP
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
Enter a value to set the HP-IB Address
600
1200
2400
4800
9600
6
47
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