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(3) When an extension A/D converter module is connected to a main D/A
converter module
When an extension A/D converter module is connected to a main D/A converter module, the conversion speed is
fixed to 100
s for the main D/A converter module and the extension A/D converter module. In addition,
processing time (100
s) arises between the conversion processing of each channel. Therefore, the conversion
period of the main D/A converter module is given by the following:
Conversion period = (Conversion speed (100
s) + Processing time (100
s))
Number of conversion enabled
channels
Ex.
Assuming that the number of conversion enabled channels is 4 for both the main D/A converter module
and the extension A/D converter module
Conversion period of the main D/A converter module = (100
s + 100
s)
4 = 800
s
Sampling period of the extension A/D converter module = (100
s + 100
s)
4 = 800
s
(4) When an extension D/A converter module is connected to a main A/D
converter module
When an extension D/A converter module is connected to a main A/D converter module, the conversion speed is
fixed to 100
s. The setting of the conversion speed switch (address: 0001H) is ignored. In addition, processing
time (100
s) arises between the conversion processing of each channel.
Therefore, the conversion period of the extension D/A converter module is given by the following:
Conversion period = (Conversion speed (100
s) + Processing time (100
s))
Number of conversion enabled
channels
Ex.
Assuming that the number of conversion enabled channels is 4 for both the main A/D converter module
and the extension D/A converter module
Sampling period of the main A/D converter module = (100
s + 100
s)
4 = 800
s
Conversion period of the extension D/A converter module = (100
s + 100
s)
4 = 800
s
100μs
CH1
100μs
100μs
CH2
100μs
100μs
CH3
100μs
100μs
CH4
100μs
CH1
CH2
CH3
CH4
Main D/A converter module
(conversion enabled
channels: CH1 to CH4)
Extension A/D converter
module (conversion enabled
channels: CH1 to CH4)
Conversion period of the main D/A converter module
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time
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
100μs
CH1
100μs
100μs
CH2
100μs
100μs
CH3
100μs
100μs
CH4
100μs
CH1
CH2
CH3
CH4
Main A/D converter module
(conversion enabled
channels: CH1 to CH4)
Extension D/A 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
Conversion period of the extension D/A converter module
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time
Conversion
processing
Processing
time