HP E1419A User Manual page 373

372 Glossary
Control The Digital Signal Processor (DSP) chip that performs all
of the HP E1419's internal hardware control functions as
Processor
well as performing the EU Conversion process.
DSP Same as Control Processor
EU Engineering Units
EU Conversion Engineering Unit Conversion: Converting binary A/D
readings (in units of A/D counts) into engineering units
of voltage, resistance, temperature, strain. These are the
"built in" conversions (see SENS:FUNC: ...). The
HP E1419 also provides access to custom EU
conversions (see SENS:FUNC:CUST in command
reference and "Creating and Loading Custom EU Tables"
in Chapter 3).
FIFO The First-In-First-OUT buffer that provides output
buffering for data sent from an algorithm to an
application program.
Flash or Non-volatile semiconductor memory used by the
HP E1419 to store its control firmware and calibration
Flash Memory
constants
Scan List A list of up to 64 channels that is built by the HP E1419.
Channels referenced in algorithms are placed in the Scan
List as the algorithm is defined. This list will be scanned
each time the module is triggered.
SCP Signal Conditioning Plug-on: Small circuit boards that
plug onto the HP E1419's main circuit board. Available
analog input SCPs can provide noise canceling filters,
signal amplifiers, signal attenuators, and strain bridge
completion. Analog output SCPs are available to provide
measurement excitation current, controlling voltage, and
controlling current. Digital SCPs are available to both
read and write digital states, read frequency and counts,
and output modulated pulse signals (FM and PWM).
Swapping This term applies to algorithms that are enabled to swap.
These algorithms can be exchanged with another of the
same name while the original is running. The "new"
algorithm becomes active after an update command is
sent. This "new" algorithm may again be swapped with
another, and so on. This capability allows changing
algorithm operation without stopping and leaving this and
perhaps other processes without control.
Appendix C