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| 1/23/2010 1:35 AM | |
Joined: 7/2/2008 Last visit: 9/30/2024 Posts: 928 Rating:
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Hello e_ashish , The difference comes from the ADC (Analog to digital converter). The integrating ADC is a well known type of ADCs and is usually used when high resolution is required and conversion speed is not a vital parameter. I don't know what Actual Value Encryption really is but I think that this isSiemens name of Direct conversion ADC and also named FLASH ADCs. Flash ADCs are quite fast but normally with low resolution because the more resolution you want to have the more comparators have to be employed and thus the more complex is the circuit then it becomes more expensive. If you take a look at technical specs of both modules you will notice that: 1-For 331-7KF02 (Integrating - 14 bit resolution), 1- basic conversion time per channelis 100 msec. 2- Basic execution time of module is816 msec. 2-For 331-7HF01 (Actual value - 14 bit resolution), 1- basic conversion time per channelis 52μs(Quite fast 2- Basic execution time of moduleis20 msec. Best regards. H-H |
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