Features of DAPL 3000 Dependent on DAP Model

This listing covers the following models:

xDAP 7400  
xDAP 7410  
xDAP 7420  

  1. Input Operating Voltage Ranges

    The input voltage range is fixed. Within that range, the operating differential range is software-programmable.

    Model Nominal Input Range
    xDAP 7400 -10V to +10V
    xDAP 7410 -10V to +10V
    xDAP 7420 -10V to +10V

     

  2. Input Sampling — Differential Analog Voltage Range

    The input voltage ranges are software-programmable. These full-range input intervals yield values spanning the full digitized output range.

    Model -0.1 to +0.1
    		 -0.2 to +0.2 -0.5 to +0.5 -1.0 to +1.0 -2.0 to +2.0
    		 -5.0 to +5.0 -10.0 to +10.0
      (gain 100)
    		(gain 50) (gain 20) (gain 10) (gain 5)
    		(gain 2) (gain 1)
    xDAP 7400 x x x x x x x
    xDAP 7410 x x x x x x x
    xDAP 7420 x x x x x x x

     

  3. Input Converter Precision

    Model Precision
    xDAP 7400 Rounded to 16 bits
    xDAP 7410 Rounded to 16 bits
    xDAP 7420 Rounded to 16 bits

     

  4. Channel selectors

    The number of selector channels determines the maximum number of input sources that can be captured or digitized simultaneously. Hardware pin mappings determine which pins are electrically routed to which channel selectors. This hardware is not reconfigurable. For maximum parallelism in data capture, route signals through as many of the channel selectors as possible.

    Model Selector channels available Selector addresses
    xDAP 7400 8 default
    1. D0, D1
    2. D2, D3
    3. D4, D5
    4. D6, D7
    5. D8, D9
    6. D10, D11
    7. D12, D13
    8. D14, D15
    xDAP 7410 8 default (C0:)
    1. D0, D1
    2. D2, D3
    3. D4, D5
    4. D6, D7
    5. D8, D9
    6. D10, D11
    7. D12, D13
    8. D14, D15
    		 legacy 1 (C1:)
    1. D0
    2. D1
    3. D2
    4. D3
    5. D4
    6. D5
    7. D6
    8. D7
    		 legacy 2 (C2:)
    1. D0
    2. D1
    3. D2
    4. D3
    5. D4
    6. D5
    7. D6
    8. D7
    xDAP 7420 8 default (C0:)
    1. D0, D1
    2. D2, D3
    3. D4, D5
    4. D6, D7
    5. D8, D9
    6. D10, D11
    7. D12, D13
    8. D14, D15
    		 legacy 1 (C1:)
    1. D0
    2. D1
    3. D2
    4. D3
    5. D4
    6. D5
    7. D6
    8. D7
    		 legacy 2 (C2:)
    1. D0
    2. D1
    3. D2
    4. D3
    5. D4
    6. D5
    7. D6
    8. D7

     

  5. Number of Differential Analog Input Signal Pins

    Model Differential input pin-pairs available
    xDAP 7400 16 (fixed)
    xDAP 7410 16 (fixed)    8 + 8 (optional)
    xDAP 7420 16 (fixed)    8 + 8 (optional)

     

  6. Outputs Ports

    Different models may support clocked or unclocked output ports.

    Clocked output ports (configured by ODEFINE procedure) receive multiple data channels via a predefined OPIPES channel pipe. Unclocked output ports receive data via DACOUT or DIGITALOUT processing.

    Model Port type Direction Lines Clocked
    xDAP 7400 digital input 16 no
    digital output 16 no
    xDAP 7410 digital input 16 no
    digital output 16 no
    xDAP 7420 digital input 16 no
    digital output 16 no

     

  7. Input Channel List Size (CHANNELS)

    The total number of channels defined by SET commands cannot exceed this limit. Input signal pins can be sampled more than once into separate logical channels, so the number of logical channels can exceed the number of physical channels. For differential analog inputs, each channel uses two hardware lines, so the number of input channels also does not correspond to the number of physical wires.

    Model Maximum channels in channel list
    xDAP 7400 1024
    xDAP 7410 1024
    xDAP 7420 1024

     

  8. Timing Resolution for Capture and Conversion

    Time intervals specified by TIME and SCAN commands must be exact integer multiples of these time intervals. If some other time interval is specified, the value will be automatically adjusted, which might produce unexpected side effects.

    Model Sample capture time resolution
    xDAP 7400 0.020 (20 nanoseconds)
    xDAP 7410 0.020 (20 nanoseconds)
    xDAP 7420 0.020 (20 nanoseconds)

     

  9. Sampling Operations Time Interval

    Time intervals between individual sampling/capture operations, as specified by a TIME command, must be within these time interval bounds. These limitations are forced by characteristics of the hardware devices. Units are microseconds.

    Model Minimum Maximum
    xDAP 7400 1.00 10000.00
    xDAP 7410 1.00 10000.00
    xDAP 7420 0.50 10000.00

     

  10. Channel List Scan Time Interval

    Time intervals for capturing a value for each channel in an input channel list, as specified by SCAN command, must be within these time interval bounds. These limitations are forced by characteristics of the hardware devices. Units are microseconds.

    Model Minimum Maximum
    xDAP 7400 1.00 100000.00
    xDAP 7410 1.00 100000.00
    xDAP 7420 0.50 100000.00

     

  11. Multiplex settling time interval

    Time intervals between sampling actions must be no smaller than this interval to guarantee that sampled voltages can settle to full accuracy when any channel selector is configured to multiplex signals from different input signal lines. If there is insufficient time for the electrical switching transient to settle after switching, the accuracy of the digitized value is degraded. A violation is diagnosed as a warning rather than a terminating error, because sometimes digitized information at higher speeds remains useful despite loss of resolution. Weak hardware interconnections or signal drivers can further impair settling time.

    Model Interface ID Smallest interval, μsec
    xDAP 7400 xDAP0004-03 1.00
    xDAP 7410 xDAP0004-03 1.00
    xDAP 7420 xDAP0004-03 1.00

     

  12. Aggregate Sampling Rate

    Aggregate sampling rate is the sum of sampling rates on all active input channels running concurrently.

    Model Maximum
    xDAP 7400 8,000,000 (samples/s)
    xDAP 7410 8,000,000 (samples/s)
    xDAP 7420 8,000,000 (samples/s)

     

  13. Accessory Restrictions

    No output expansion for updating

    xDAP 7400
    xDAP 7410
    xDAP 7420

    No input expansion for sampling

    xDAP 7400

    Analog low-density differential input panels only

    xDAP 7410
    xDAP 7420

    No digital counter accessory support ( CTCOUNT, CTRATE )

    xDAP 7400
    xDAP 7410
    xDAP 7420

     

  14. Processing Task Scheduling Intervals ( OPTION QUANTUM )

    Units are in microseconds.

    Model Minimum quantum Maximum quantum
    xDAP 7400 100 50000
    xDAP 7400 100 50000
    xDAP 7420 100 50000

     

  15. Rescue task scheduling ( OPTION RQUANTUM, OPTION RINTERVAL )

    Experts only, and only if there is time for careful testing!

    Units are in microseconds.

    Model Minimum RQUANTUM Maximum RQUANTUM Minimum RINTERVAL Maximum RINTERVAL
    xDAP 7400 20 1000 5000 20000
    xDAP 7410 20 1000 5000 20000
    xDAP 7420 20 1000 5000 20000

     

DAPL 3000 version 2.00