Agilent Technologies 4294A Programming Manual

476 Appendix B
Status Reporting System
General Status Register Model
Transition filter and condition register
The transition filter allows you to select which transitions of the condition of the 4294A
will set a bit in the event register.
When the status register has a transition filter, there is a lower register called a condition
register under the event register. The transition filter is between the event register and the
condition register. The transition filter enables you to select a positive and/or negative
transition of the condition register bit to set a bit in the corresponding event register. For
example, if you set the negative transition filter, a “1” is set in the event register by
changing from “1” to “0” in the condition register.
Figure B-2 Transition Filter and Condition Register
For the 4294A, only the “Program Running” and “Printing” bits of the operation status
register has a transition filter (See
Figure B-3). By using the transition filter, you can
generate an SRQ at the start and/or the end of the program execution.

Agilent Technologies 4294A Specifications

General

Frequency Range	40 Hz to 110 MHz
Display	Color LCD
Output Impedance	50 Ω
Impedance Range	1 mΩ to 100 MΩ
Measurement Functions	Impedance, Admittance, Phase
Input Impedance	1 MΩ
Power Supply	100 V, 120 V, 220 V, 240 V ±10%
Basic Accuracy	±0.08%
Measurement Parameters	Z, Y, θ
DC Bias Voltage	0 to ±40 V
DC Bias Current	0 to ±100 mA
Interface	GPIB, RS-232
Power Requirements	50/60 Hz
Measurement Accuracy	0.08% basic accuracy