Allen-Bradley LOGIX 5000 User Manual

Process Control Instructions
Chapter 1
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018 37
Commanded State in Operator Control
The following table shows how the D3SD instruction operates when in Operator
control.
Oper0Req Oper1Req Oper2Req State0 Perm
State1
Perm State2 Perm Description
false false true either either true Command0Status is cleared to false
Command1Status is cleared to false
Command2Status is set to true
false true false either true either Command0Status is cleared to false
Command1Status is set to true
Command2Status is cleared to false
true false false true either either Command0Status is set to true
Command1Status is cleared to false
Command2Status is cleared to false
If more than one operator command input is true:
• The instruction sets the appropriate bit in Status
• If Override and Hand are cleared to false, the instruction holds the previous
state
After every instruction execution, the instruction:
• Clears all the operator request inputs
• If ProgValueReset is true, clears all the program request inputs to false
Hand Mode or Override Mode
The following table describes how the D3SD instruction determines whether to
operate in Hand or Override mode.
ProgHandReq ProgOverrideReq FaultAlarm and OverrideOnFault Description
true either either Hand mode
Hand is set to true
Override is cleared to false
false true either Override mode
Hand is cleared to false
Override is set to true
false either true Override mode
Hand is cleared to false
Override is set to true
When Override is set, it takes precedence over Program and Operator control.
The following table describes how the Override mode affects the commanded
state.

Allen-Bradley LOGIX 5000 Specifications

General

Brand	Allen-Bradley
Model	LOGIX 5000
Category	Controller
Language	English