Process Control Instructions 
 
236  Rockwell Automation Publication 1756-RM006K-EN-P - November 2018 
Output 
Parameters 
Data 
Type 
Description  Values 
Status3CV3  DINT  Additional bit mapped CV3 status for the function 
block. A value of 0 indicates that no faults have 
occurred. 
 
InstructFault  BOOL  The function block has generated a fault. Indicates 
state of bits in Status1, Status2, and Status3CV(n), 
where (n) can be 1, 2, or 3. 
Bit 0 of Status1 
PV1Faulted  BOOL  Process variable PV1 health bad.  Bit 1 of Status1 
PV2Faulted  BOOL  Process variable PV2 health bad.  Bit 2 of Status1 
PV1SpanInv  BOOL  The span of PV1 inValid, PV1EUMax < PV1EUMin.  Bit 3 of Status1 
PV2SpanInv  BOOL  The span of PV2 inValid, PV2EUMax < PV2EUMin.  Bit 4 of Status1 
SP1ProgInv  BOOL  SP1Prog < SP1LLimit or > SP1HLimit. Limit value 
used for SP1. 
Bit 5 of Status1 
SP2ProgInv  BOOL  SP2Prog < SP2LLimit or > SP2HLimit. Limit value 
used for SP2. 
Bit 6 of Status1 
SP1OperInv  BOOL  SP1Oper < SP1LLimit or > SP1HLimit. Limit value 
used for SP1. 
Bit 7 of Status1 
SP2OperInv  BOOL  SP2Oper < SP2LLimit or > SP2HLimit. Limit value 
used for SP2. 
Bit 8 of Status1 
SP1LimitsInv  BOOL  Limits inValid: SP1LLimit < PV1EUMin, SP1HLimit 
> PV1EUMax, or SP1HLimit < SP1LLimit. If 
SP1HLimit < SP1LLimit, then limit value by using 
SP1LLimit. 
Bit 9 of Status1 
SP2LimitsInv  BOOL  Limits inValid: SP2LLimit < PV2EUMin, SP2HLimit 
> PV2EUMax, or SP2HLimit < SP2LLimit. If 
SP2HLimit < SP2LLimit, then limit value by using 
SP2LLimit. 
Bit 10 of Status1 
SampleTimeTooS
mall 
BOOL  Model DeadTime / DeltaT must be less than or 
equal to 200. 
Bit 11 of Status1 
PV1FactorInv  BOOL  Entered value for Factor1 < 0.  Bit 12 of Status1 
PV2FactorInv  BOOL  Entered value for Factor2 < 0.  Bit 13 of Status1 
TimingModeInv  BOOL  Entered TimingMode inValid. If the current mode is 
not Override or Hand then set to Manual mode. 
Bit 27 of Status2 
RTSMissed  BOOL  Only used when in Real Time Sampling mode. Is 
TRUE when ABS(DeltaT – RTSTime) > 1 
millisecond. 
Bit 28 of Status2. 
RTSTimeInv  BOOL  Entered RTSTime inValid.  Bit 29 of Status2. 
RTSTimeStampInv  BOOL  RTSTimeStamp inValid. If the current mode is not 
Override or Hand, then set to Manual mode. 
Bit 30 of Status2. 
DeltaTInv  BOOL  DeltaT inValid. If the current mode is not Override 
or Hand then set to Manual mode. 
Bit 31 of Status2. 
CV1Faulted  BOOL  Control variable CV1 health bad.  Bit 0 of Status3CV1 
CV2Faulted  BOOL  Control variable CV2 health bad.  Bit 0 of Status3CV2 
CV3Faulted  BOOL  Control variable CV3 health bad.  Bit 0 of Status3CV3 
CV1HandFBFaulte
d 
BOOL  CV1 HandFB value health bad.  Bit 1 of Status3CV1 
CV2HandFBFaulte
d 
BOOL  CV2 HandFB value health bad.  Bit 1 of Status3CV2