Allen-Bradley Logix5000 Reference Manual page 110

Chapter 2 Bit Instructions (XIC, XIO, OTE, OTL, OTU, ONS, OSR, OSF, OSRI, OSFI)
Description:
Arithmetic Status Flags:
Fault Conditions:
Condition
Prescan
Instruction first scan
Instruction first run
EnableIn is cleared
EnableIn is set
Postscan
110
When InputBit is set and InputBit
OutputBit. When InputBit
instruction clears OutputBit.
InputBit
InputBit
OutputBit
Not affected
None
Execution:
Function Block Action
No action taken.
InputBit is set.
n-1
InputBit is set.
n-1
EnableOut is cleared, the instruction does nothing, and the
outputs are not updated.
On a cleared to set transition of InputBit, the instruction
sets InputBit .
n-1
The instruction executes.
EnableOut is set.
No action taken.
Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
is cleared, the OSRI instruction sets
n-1
is set or when InputBit is cleared, the OSRI
n-1
n-1
Instruction is Instruction resets during
executed next scan execution
Structured Text Action
No action taken.
InputBit
n-1
InputBit
n-1
N/A
On a cleared to set transition of InputBit, the instruction
sets InputBit
EnableIn is always set.
The instruction executes.
No action taken.
is set.
is set.
.
n-1