Mitsubishi Electric NZ2EX2B-60AD4 - Page 94

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(b) With a conversion speed of 400μs
Between the conversion processing (400μs) of each channel, processing time (100μs) is generated. Therefore,
the sampling period is given by the following:
Sampling period = (Conversion speed (400μs) + Processing time (100μs)) × Number of conversion enabled
channels
Ex.
Assuming that the conversion speed setting is 400μs and the number of conversion enabled channels is
4 for both the main A/D converter module and the extension A/D converter module
Sampling period of the main A/D converter module = (400μs + 100μs) × 4 = 2000μs =2ms
Sampling period of the extension A/D converter module = (400μs + 100μs) × 4 = 2000μs =2ms
(c) With a conversion speed of 1ms
With a conversion speed of 1ms, the time interval is 1ms including the processing time (100μs). Therefore, the
sampling period is given by the following:
Sampling period = Conversion speed (1ms) × Number of conversion enabled channels
Ex.
Assuming that the conversion speed setting is 1ms and the number of conversion enabled channels is 4
for both the main A/D converter module and the extension A/D converter module
Sampling period of the main A/D converter module = 1ms × 4 = 4ms
Sampling period of the extension A/D converter module = 1ms × 4 = 4ms
400μs
CH1
100μs 400μs
CH2
100μs 400μs
CH3
100μs 400μs
CH4
CH1 CH2 CH3 CH4
100μs
Main A/D converter module
(conversion enabled
channels: CH1 to CH4)
Extension A/D converter
module (conversion enabled
channels: CH1 to CH4)
Sampling period of the main A/D converter module
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Sampling period of the extension A/D converter module
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time
1ms
CH1
1ms
CH2
1ms
CH3
1ms
CH4
CH1 CH2 CH3 CH4
Main A/D converter module
(conversion enabled
channels: CH1 to CH4)
Extension A/D converter
module (conversion enabled
channels: CH1 to CH4)
Sampling period of the main A/D converter module
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Sampling period of the extension A/D converter module
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time