Data Acquisition: DAQMASTER Data Acquisition Unit MW100

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	Data Acquisition Unit MW100

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Main Unit Recording Function

Select a CF card appropriate for the required data recording time. See the table below for the approximate time’s worth of data that can be recorded for each size of card. For example, when recording ten channels of data at a 10 ms measurement interval, the approximate amount of data that can be recorded to a 128-MB CF card is 8.8 hours worth. On the MW100, measured data is recorded to the CF card via an SRAM. The SRAM is backed up with a battery (for approximately ten years), ensuring that even in the event of a power failure, data prior to the failure is not lost.

Recording channels	Measurement interval	128 M	512 M	1 G
10 ch	10 ms ¹	Approx. 8.8 hours	Approx. 1.4 days	Approx. 2.8 days
	100 ms	Approx. 3.7 days	Approx. 14.8 days	Approx. 28.9 days
	500 ms	Approx. 18.5 days	Approx. 74.0 days	Approx. 144 days
	1 s	Approx. 37.0 days	Approx. 148 days	Approx. 289 days
	2 s	Approx. 74.0 days	Approx. 296 days	Approx. 578 days (Approx. 1.5 years)
	5 s	Approx. 185 days	Approx. 740 days	Approx. 1446 days (Approx. 3.9 years)
20 ch	50 ms ²	Approx. 22.2 hours	Approx. 3.7 days	Approx. 7.2 days
	100 ms	Approx. 1.8 days	Approx. 7.4 days	Approx. 14.4 days
	500 ms	Approx. 9.2 days	Approx. 37.0 days	Approx. 72.3 days
	1 s	Approx. 18.5 days	Approx. 74.0 days	Approx. 144 days
	2 s	Approx. 37.0 days	Approx. 148 days	Approx. 289 days
	5 s	Approx. 92.5 days	Approx. 370 days (Approx. 1 year)	Approx. 723 days (Approx. 1.9 years)
60 ch	100 ms	Approx. 14.8 hours	Approx. 2.4 days	Approx. 4.8 days
	500 ms	Approx. 3.0 days	Approx. 12.3 days	Approx. 24.1 days
	1 s	Approx. 6.1 days	Approx. 24.6 days	Approx. 48.2 days
	2 s	Approx. 12.3 days	Approx. 49.3 days	Approx. 96.4 days
	5 s	Approx. 30.8 days	Approx. 123 days	Approx. 241 days

Storage capacity in terms of time by CF card size and numbers of channels

At a measurement interval of 10 ms, the maximum number of channels that can be measured is 10. Eleven or more channels cannot be measured at a measurement interval of 10 ms.
At a measurement interval of 50 ms, the maximum number of channels that can be measured is 30. Thirty-one or more channels cannot be measured at a measurement interval of 50 ms.

Multi-Interval

MW100 Multi-Interval

The MW100 enables mixing of three different measurement intervals in a single unit. Measurement intervals can be set for each individual module. This allows you to measure various items under test at the most appropriate measurement intervals. Also, you can set data recording conditions¹ for each measurement interval, thereby using the available space on the CF card as efficiently as possible.

Single: Save a file up to the specified size then stop recording.
Full Stop: Stop recording once the CF card is full.
Rotate: When the capacity of the CF card has been exceeded, the oldest files are deleted to free up space, then recording continues.

Trigger and Data Thinning Functions

Data Recording Using the Trigger and Data Thinning Functions

The MW100 is equipped with built-in trigger functions. Data recording can be started based on alarm values, time, external contact input, or other parameters. Once recording is started, it can be set to progress continuously or according to a specified data length. When specifying a data length, a pre-trigger can also be set. The MW100 also provides a data thinning function.

Portions of measured data can be omitted at regular intervals during measurement (minimum of four seconds) before data is recorded. Using the trigger and data thinning functions together provides "coarse" recording of general data and "fine" recording of abnormal data.

Broken Line Chart Output (/M1 Option)

This function is included with the MATH (/M1) option. Patterns can be output from the analog output and PWM output modules (MX120) by inputting the coordinates of the pattern you wish to generate. In the pattern output shown in the figure below, points (X1,Y1) through (X10,Y10) are input in advance, and the output is generated accordingly.