Allen-Bradley LOGIX 5000 User Manual

Chapter 1
Process Control Instructions
102 Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
PVSpanInv is true or
SPLimitsInv is true
Disable the Auto and Cascade/Ratio modes. If Override or Hand is not the current mode, set to
Manual mode
Do not compute PV and SP percent
PID control algorithm is not executed
Set CV to value by determined by Program or Operator control and mode (Manual, Override, or
Hand).
RatioLimitsInv is true
and
CasRat is true and
UseRatio is true
If not already in Hand or Override, set to Manual model
Disable the Cascade/Ratio mode
Set CV to value determined by Program or Operator control and mode (Manual, Override, or
Hand).
TimingModeInv is true
or
RTSTimeStampInv is
true or
DeltaTInv is true
If not already in Hand or Override, set to Manual mode
See also
Function Block Attributes on page 491
Function Block Faceplate Controls on page 552
Common Attributes on page 537
Structured Text Syntax on page 508
This information applies to the CompactLogix 5370, ControlLogix 5570,
Compact GuardLogix 5370, GuardLogix 5570, Compact GuardLogix 5380,
CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, and GuardLogix
5580 controllers.
The POSP instruction opens or closes a device by pulsing open or close contacts at
a user defined cycle time with a pulse width proportional to the difference
between the desired and actual positions.
Available Languages
Ladder Diagram
This instruction is not available in ladder diagram logic.
Position Proportional
(POSP)

Allen-Bradley LOGIX 5000 Specifications

General

Brand	Allen-Bradley
Model	LOGIX 5000
Category	Controller
Language	English