Using Basic Instructions
6–1
6
Using Basic Instructions
This chapter contains general information about the basic instructions and explains
how they function in your application program. Each of the basic instructions
includes information on:
•
what the instruction symbol looks like
•
typical execution time for the instruction
•
how to use the instruction
In addition, the last section contains an application example for a paper drilling
machine that shows the basic instructions in use.
Bit Instructions
Instruction
Purpose
Page
Mnemonic
Name
Purpose
Page
XIC
Examine if Closed
Examines a bit for an On condition.
6–4
XIO
Examine if Open
Examines a bit for an Off condition.
6–4
OTE
Output Energize
Turns a bit On or Off.
6–5
OTL and
OTU
Output Latch and
Output Unlatch
OTL turns a bit on when the rung is executed, and
this bit retains its state when the rung is not
executed or a power cycle occurs. OTU turns a bit
off when the rung is executed, and this bit retains its
state when the rung is not executed or when power
cycle occurs.
6–5
OSR
One-Shot Rising
Triggers a one time event.
6–7
Programming
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