Instruction manual
Table Of Contents
- INTRODUCTION
- GETTING STARTED
- MAKING THE CONNECTIONS
- USING THE PC215E
- STRUCTURE AND ASSIGNMENTS OF THE REGISTERS
- Register Assignments
- Register Groups
- The Register Details
- Programmable Peripheral Interface PPI-X Data Register Port A
- Programmable Peripheral Interface PPI-X Data Register Port B
- Programmable Peripheral Interface PPI-X Data Register Port C
- Programmable Peripheral Interface PPI-X Command Register
- Programmable Peripheral Interface PPI-Y Data Register Port A
- Programmable Peripheral Interface PPI-Y Data Register Port B
- Programmable Peripheral Interface PPI-Y Data Register Port C
- Programmable Peripheral Interface PPI-Y Command Register
- Z1 Counter 0 Data Register
- Z1 Counter 1 Data Register
- Z1 Counter 2 Data Register
- Counter/Timer Z1 Control Register
- Z1 Counter/Timer Status Register
- Z2 Counter 0 Data Register
- Z2 Counter 1 Data Register
- Z2 Counter 2 Data Register
- Counter/Timer Z2 Control Register
- Z2 Counter/Timer Status Register
- Group Z Clock Connection Register
- Group Z Gate Connection Register
- Interrupt Source Selection Register
- Interrupt Status Register
- PROGRAMMING THE PC215E
- Copyright
- Files installed from the Distribution Diskette
- Windows DLL and Examples
- DOS 'C' Library and Examples
- Using the Dynamic Link Library
- Windows and DOS Library Functions
- Initialisation Functions
- Interrupt Control Functions
- Data Buffer Functions
- Timer/Counter Functions
- Differential Counter Functions
- Frequency Generation Functions
- Millisecond Stopwatch Functions
- Frequency Input and Output Functions
- Digitally- and Voltage-Controlled Oscillator Functions
- Digital Input/Output Functions
- Switch Scanner Matrix Functions
- Bi-Directional Data Bus Functions
- PC215E Library Error Codes
- PC215E Interface Guide For LABTECH NOTEBOOK
- Guide to User Programming
- Signal Centre
- CONTENTS
- DECLARATION OF CONFORMITY

PC215E Page 114
Software: The non-physical parts of a computer system that includes computer programs such as the operating
system, high level languages, applications program etc.
Spike: A transient disturbance of an electrical circuit.
Stability: The ability of an instrument or sensor to maintain a consistent output when a consistent input is applied.
Successive Approximation: An analog to digital conversion method that sequentially compares a series of
binary weighted values with the analog input signal to produce an output digital word in ānā steps where ānā is the
number of bits of the A/D Converter. q.v.
Symbol: The graphical representation of some idea. Letters and numerals are symbols.
Syntax: Syntax is the set of rules used for forming statements in a particular programming language.
Thermocouple: A thermocouple is two dissimilar electrical conductors, known as thermo-elements, so joined as
to produce a thermal emf when the measuring and reference junctions are at different temperatures.
Thermocouple Measuring Junction: The junction of a thermocouple which is subjected to the temperature
being measured.
Thermocouple Reference Junction: The junction of a thermocouple which is at a known temperature. aka Cold
Junction.
Throughput Rate: The maximum repetitive rate at which a data conversion system can operate with a specified
accuracy. It is determined by summing the various times required for each part of the system and then taking the
reciprocal of this time.
Transducer: Device that converts length, position, temperature, pressure, level or other physical variable to an
equivalent voltage or current accurately representing the original measurement.
Trigger: Pulse or signal used to start or stop a particular action. Frequently used to control data acquisition
processes.
Unipolar: A signal being measured is said to be unipolar when the voltage on its 'high' terminal is always the
same polarity (normally positive) in relation to its 'low' terminal.
Word: The standard number of bits that can be manipulated at once. Microprocessors typically have word lengths
of 8, 16 or 32 bits.
Wrap, Wraparound: Connection of a FIFO buffer such that the contents once loaded, are continuously circulated.