Campbell Scientific CR1000KD CR1000 Measurement and Control System - Page 430
Output Processing and NAN
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Section 10. Troubleshooting 0 / 0 -2,147,483,648 -7999 As Boolean 1 / 0 TRUE 0 / 0 TRUE As STRING 1 / 0 +INF 0 / 0 NAN 1 except Average() outputs NAN 2 except Average() outputs 0 -1 -1 INF NAN 2.147484E09 -1 -1 INF NAN 0 65535 65535 65535 65535 2147483648 -2147483648 TRUE 4294967295 -1 TRUE 4294967295 -1 TRUE 2147483647 +INF TRUE 2147483648 NAN TRUE TRUE TRUE TRUE TRUE TRUE -2,147,483,648 -1 -1 2147483647 -2147483648 10.3.4.4 Output Processing and NAN When a measurement or process results in NAN, any output process with DisableVar = FALSE that includes an NAN measurement, e.g., Average(1,TC_TempC,FP2,False) will result in NAN being stored as final-storage data for that interval. However, if DisableVar is set to TRUE each time a measurement results in NAN, only non-NAN measurements will be included in the output process. CRBasic example Using NAN to Filter Data (p. 431) demonstrates the use of conditional statements to set DisableVar to TRUE as needed to filter NAN from output processes. Note If all measurements result in NAN, NAN will be stored as final-storage data regardless of the use of DisableVar. 430
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