Fluke PM-3384B, PM-3380B, PM-3390B, PM-3370B Single function programming using the instrument model

USING THE COMBISCOPE INSTRUMENTS 3 - 5

The measurement instructions are easy to use and do not require any special knowledge of the instrument. The programming concept reduces simple measurement tasks with complex instruments to simple instructions, leaving the setup complexity to the instrument. The measurement instructions are extremely useful when the application does not require the precise setting of instrument functions. The concept is extendible with separate control of parameters that are vital to the application.

3.2.2Single function programming using the instrument model

All major instrument functions such as time base, input impedance, etc, are separately programmable using "single parameter" commands. The easy to understand command set is comparable with the way instruments are traditionally controlled. This concept gives you full control over all functions and power of a modern oscilloscope. However, for maximum benefit of all the advanced features of your CombiScope instrument, you need some understanding of their remote operation.

Functions of the CombiScope instrument that belong together are grouped into subsystems. There are several subsystems, each representing a particular function. The instrument model in the following figure gives an overview of the most important subsystems.

DISPlay

INPut

SENSe

TRIGger

TRACe

CALCulate

ST7155

Figure 3.1 The Instrument Model for CombiScope instruments

EXPLANATION OF THE INSTRUMENT MODEL:

•All functions that deal with signal conditioning are part of the INPut subsystem.

•In a similar way the SENSe subsystem contains the data acquisition part where the analog signal is converted into a digital value.

•The results of the acquisition are stored in a TRACe subsystem memory.

•Post-processing functions on the acquired data are available in the CALCulate subsystem.

•The TRIGger subsystem deals with the control of the acquisition process.

•The DISPlay subsystem handles the front panel display functions.