Name Type Values (Range) Unit DescriptionOverflow BOOLEAN 1=Yes0=No- Overflow indicationoutput for U2Source BOOLEAN 0=Process1=Substituted- Source indication outputfor U2Test BOOLEAN 1=Yes0=No- Test indication output forU2Validity INTEGER 0=Good2=Reserved1=Invalid3=Questionable- Validity indication outputU2BadReference BOOLEAN 1=Yes0=No- BadReference indicationoutput for U3Derived BOOLEAN 1=Yes0=No- Derived indication outputfor U3Failure BOOLEAN 1=Yes0=No- Failure indication outputfor U3Inaccurate BOOLEAN 1=Yes0=No- Inaccurate indicationoutput for U3Inconsistent BOOLEAN 1=Yes0=No- Inconsistent indicationoutput for U3OldData BOOLEAN 1=Yes0=No- OldData indicationoutput for U3OperatorBlocked BOOLEAN 1=Yes0=No- OperatorBlockedindication output for U3Oscillatory BOOLEAN 1=Yes0=No- Oscillatory indicationoutput for U3OutOfRange BOOLEAN 1=Yes0=No- OutOfRange indicationoutput for U3Overflow BOOLEAN 1=Yes0=No- Overflow indicationoutput for U3Source BOOLEAN 0=Process1=Substituted- Source indication outputfor U3Test BOOLEAN 1=Yes0=No- Test indication output forU3Validity INTEGER 0=Good2=Reserved1=Invalid3=Questionable- Validity indication outputU3BadReference BOOLEAN 1=Yes0=No- BadReference indicationoutput for U4Derived BOOLEAN 1=Yes0=No- Derived indication outputfor U4Failure BOOLEAN 1=Yes0=No- Failure indication outputfor U4Inaccurate BOOLEAN 1=Yes0=No- Inaccurate indicationoutput for U4Inconsistent BOOLEAN 1=Yes0=No- Inconsistent indicationoutput for U4OldData BOOLEAN 1=Yes0=No- OldData indicationoutput for U4Table continues on next pageSection 18 1MRK 505 394-UEN AStation communication672 Line differential protection RED650 2.2 IECTechnical manual
