Rockwell Automation Publication 1756-RM003N-EN-P - October 2011 105
Bit Instructions (XIC, XIO, OTE, OTL, OTU, ONS, OSR, OSF, OSRI, OSFI) Chapter 2
One Shot Rising (OSR)
The OSR instruction sets or clears the output bit, depending on the status of the
storage bit.
This instruction is available in structured text and function block as OSRI,
see page 109
.
Operands:
Relay Ladder
Description: When enabled and the storage bit is cleared, the OSR instruction sets the output
bit. When enabled and the storage bit is set or when disabled, the OSR
instruction clears the output bit .
Arithmetic Status Flags: Not affected
Fault Conditions: None
Operand Type Format Description
Storage bit BOOL Tag Internal storage bit
Stores the rung-condition-in from the last time the
instruction was executed
Output bit BOOL Tag Bit to be set
Rung-condition-in
Storage Bit
Output Bit
Instruction is Instruction resets during
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