478 terms ch 05

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samantha886
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201910
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478 terms ch 05
Updated:
2013-02-19 22:08:28
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478 terminology
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  1. the part of a total system memory
    devoted to storing the application program and its associated data.
    Application memory
  2. the part of the processor's memory, containing
    I/O values and files, where data is monitored, manipulated, and changed for
    control purposes.
    Data table
  3. the type
    of nonvolatile, programmable, read only memory that can be erased completely by
    applying the proper voltage to the memory chip.
    Electrically alterable read-only memory (EAROM)
  4. a type of nonvolatile, programmable, read-only memory that can be erased by
    electrical pulses.
    Electrically erasable programmable read-only memory (EEPROM)
  5. a type of
    nonvolatile, programmable, read-only memory that can be erased with ultraviolet
    light.
    Erasable programmable read-only memory (EPROM)
  6. the part of the system memory that
    permanently store system’s supervisory programs, as well as instruction
    software; not accessible to the user.
    Executive memory
  7. the area of a PLC’s memory where information
    about the status of input devices and stored.
    Input table
  8. the part of the programmable controller that stores
    data, instructions, and the control program either temporarily or semi-permanently.
    Memory
  9. a diagram showing the system's memory
    addresses, as well as which programs and data are assigned to each section of
    memory.
    Memory map
  10. a type of memory whose contents are not
    lost or disturbed if operating power is lost.
    Nonvolatile memory
  11. the area of a PLCs memory where information
    about the status of output devices stored.
    Output table
  12. a read only memory
    that can be programmed once and never altered again.
    Programmable read-only memory (PROM)
  13. a volatile, alterable memory
    that provides storage for the application program and data.
    Random-access memory (RAM)
  14. a type of memory that permanently
    stores and unalterable program or set of instructions.
    Read-only memory (ROM) –
  15. a temporary storage area used by the
    CPU to store a relatively small amount of data used for interim calculations or
    control.
    Scratch pad memory –
  16. the area of a PLCs memory that stores blocks
    of input/output data, as well as data about the status of internal bits.
    Storage area –
  17. the memory section where the
    application control program is stored.
    User program memory –
  18. a type of memory whose contents are
    irretrievable after operating power is lost.
    Volatile memory –

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