Allen-Bradley LOGIX 5000 Reference Manual page 149

Process Control Instructions
In either case, if the Periodic Task time is dynamically changed, or the
OversampleDT is dynamically changed, the block will perform a ModelInit.
The following TimingMode setting are not recommended due to jitter in DeltaT:
•
TimingMode = 0 (Periodic) while executing these function blocks in a
Continuous or Event Task
•
TimingMode = 2 (RealTimeSample)
Function Block
Operands Type
CC tag COORDINATED CONTROL
Structure
Input Parameters Data Type Description
EnableIn BOOL
PV REAL
PVFault BOOL
PVUEMax REAL
PVUEMin REAL
SPProg REAL
SPOper REAL
SPHLimit REAL
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
Format
structure
Enable Input. If False, the function
block will not execute and outputs are
not updated.
Scaled process variable input. This
value is typically read from an analog
input module.
PV bad health indicator. If PV is read
from an analog input, then PVFault
will normally be controlled by the
analog input fault status.
If PVFault is TRUE, it indicates an error
on the input module, set bit in Status.
Maximum scaled value for PV. The
value of PV and SP that corresponds to
100% span of the Process Variable.
If PVEUMax ≤ PVEUMin, set bit in
Status.
Minimum scaled value for PV. The
value of PV and SP that corresponds to
0% span of the Process Variable.
If PVEUMax ≤ PVEUMin, set bit in
Status.
SP Program value, scaled in PV units.
SP is set to this value when the
instruction is in Program control.
SP Operator value, scaled in PV units.
SP set to this value when in Operator
control.
If value of SPProg or SPOper <
SPLLimit or > SPHLimit, set bit in
Status and limit value used for SP.
SP high limit value, scaled in PV units.
If SPHLimit < SPLLimit or SPHLimit >
PVEUMax, set bit in Status.
Chapter 1
Description
CC Structure
Valid and Default Values
Default=TRUE
Valid = any float
Default = 0.0
FALSE = Good Health
Default = FALSE
Valid = PVEUMin < PVEUMax ≤ maximum
positive float
Default = 100.0
Valid = maximum negative float ≤
PVEUMin < PVEUMax
Default = 0.0
Valid = SPLLimit to SPHLimit
Default = 0.0
Valid = SPLLimit to SPHLimit
Default = 0.0
Valid = SPLLimit to PVEUMax
Default = 100.0
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