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AVEVA™ Communication Drivers

Use DTL without a suffix

  • Last UpdatedJul 29, 2024
  • 1 minute read

When poking or subscribing a DTL without a suffix where the RequestedType=VT_BSTR and the CanonicalType=VT_BSTR and you do not enter the entire 9 digits of the nanosecond field, the field is padded to the right with zeros.

The reason for doing this is to maintain the meaning of the decimal place after the seconds field. For example, 2011-10-31-1:1:1.5 results in 500000000 being poked to the nanoseconds field of the DTL, which really means 1/2 a second. To enter 5 nanoseconds, you must poke 2011-10-31-1:1:1.000000005.

All other fields of the date and time are considered to be padded to the left.

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