Allen-Bradley LOGIX 5000 Reference Manual page 48

Chapter 1 Process Control Instructions
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Commanded State in Program Control
The following diagram shows how the D2SD instruction operates when in
Program control.
Commanded State in Operator Control
The following diagram shows how the D2SD instruction operates when in
Operator control.
If both Oper0Req and Oper1Req are true:
•
The instruction sets the appropriate bit in Status to true
•
If Override and Hand are false, the instruction holds the previous state.
After every instruction execution, the instruction:
•
Clears all the operator request inputs to false
•
If ProgValueReset is true, clears all the program request inputs to false
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018