Process Control Instructions
36 Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
Switch Between Program Control and Operator Control
The following diagram shows how the D3SD instruction changes between
Program control and Operator control.
(1) The instruction remains in Operator control mode when ProgOperReq is
true.
Commanded State in Program Control
The following table shows how the D3SD instruction operates when in Program
control.
Prog0
Command
Prog1
Command
Prog2
Command
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 program 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