Allen-Bradley LOGIX 5000 Reference Manual page 113

Controllers advanced process control and drives and equipment phase and sequence instructions
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Process Control Instructions
SoakTime
REAL
See Structured Text Syntax for more information on the syntax of expressions
within structured text.
RMPS Structure
Specify a unique RMPS structure for each instruction.
Input Parameter
Data Type Description
EnableIn
BOOL
PV
REAL
PVFault
BOOL
NumberOfSegs
DINT
ManHoldAftInit
BOOL
CyclicSingle
BOOL
TimeRate
BOOL
GuarRamp
BOOL
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
array
Soak Time array. Enter a soak time for each
segment (0 to NumberOfSegs-1). Soak times
are entered in minutes. If a soak value is
invalid, the instruction sets the appropriate
bit in Status and changes to Operator Manual
or Program Hold mode. The array must be at
least as large as NumberOfSegs.
Valid = 0.0 to maximum positive float
Enable input. If false, the instruction does not execute and outputs are not
updated.
Default is true.
The scaled analog temperature signal input to the instruction.
Valid = any float
Default = 0.0
Bad health indicator of PV. If true, the input is invalid, the instruction is
placed in Program Hold or Operator Manual mode, and the instruction sets
the appropriate bit in Status.
Default is false.
Number of segments. Specify the number of ramp/soak segments used by
the instruction. The arrays for RampValue, SoakValue, and SoakTime must
be at least as large as NumberOfSegs. If this value is invalid, the instruction
is placed into Operator Manual or Program Hold mode and the instruction
sets the appropriate bit in Status.
Valid = 1 to (minimum size of RampValue, SoakValue, or SoakTime arrays)
Default = 1
Manual/Hold after initialization. If true, the ramp/soak is in Operator
Manual or Program Hold mode after initialization completes. Otherwise,
the ramp/soak remains is in its previous mode after initialization
completes.
Default is false.
Cyclic/single execution. True for cyclic action or false for single action.
Cyclic action continuously repeats the ramp/soak profile. Single action
performs the ramp/ soak profile once and then stops.
Default is false.
Time/rate ramp value configuration. True if the RampValue parameters are
entered as a time in minutes to reach the soak temperature. False if the
RampValue parameters are entered as a rate in units/minute.
Default is false.
Guaranteed ramp. If true and the instruction is in Auto, ramping is
temporarily suspended if the PV differs from the Output by more than
RampDeadband.
Default is cleared.
Chapter 1
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