Allen-Bradley Logix5000 Reference Manual page 87

If you want to
Enable outputs when a bit is set
Enable outputs when a bit is cleared
Set a bit
Set a bit (retentive)
Clear bit (retentive)
Enable outputs for one scan each time a rung goes
true
Set a bit for one scan each time a rung goes true
Set a bit for one scan each time the rung goes false
Set a bit for one scan each time the input bit is set in
function block
Set a bit for one scan each time the input bit is
cleared in function block
(1) There is no equivalent structured text instruction. Use other structured text programming to achieve the same result. See the description for the instruction.
Bit Instructions
(XIC, XIO, OTE, OTL, OTU, ONS, OSR, OSF, OSRI, OSFI)
Topic
Bit Addressing
Examine If Closed (XIC)
Examine If Open (XIO)
Output Energize (OTE)
Output Latch (OTL)
Output Unlatch (OTU)
One Shot (ONS)
One Shot Rising (OSR)
One Shot Falling (OSF)
One Shot Rising with Input (OSRI)
One Shot Falling with Input (OSFI)
Use the bit (relay-type) instructions to monitor and control the status of bits.
Use this instruction
XIC
XIO
OTE
OTL
OTU
ONS
OSR
OSF
OSRI
OSFI
Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
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Available in
Relay ladder
(1)
Structured text
Relay ladder
(1)
Structured text
Relay ladder
(1)
Structured text
Relay ladder
(1)
Structured text
Relay ladder
(1)
Structured text
Relay ladder
(1)
Structured text
Relay ladder
Relay ladder
Structured text
Function block
Structured text
Function block
2
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