Allen-Bradley LOGIX 5000 - Page 134

Chapter 1
Process Control Instructions
134 Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
CoolTime is the amount of time within CycleTime that the cool output is to be
turned on.
If CoolTime < MinCoolTime, set CoolTime = 0.
If CoolTime > MaxCoolTime, limit CoolTime = MaxCoolTime.
CoolTimePercent is the percentage of CycleTime that the CoolOut pulse is true.
The instruction controls heat and cool outputs using these rules:
• Set HeatOut to true if HeatTime the internal cycle time accumulator.
Clear HeatOut to false when the internal cycle timer > HeatTime.
• Set CoolOut to true if CoolTime the internal cycle time accumulator.
Clear CoolOut to false if the internal cycle timer > CoolTime.
• Clear HeatOut and CoolOut to false if CycleTime = 0.
Affects Math Status Flags
No
Major/Minor Faults
None specific to this instruction. See Common Attributes for operand-related
faults.