Rockwell Automation 9323-PA1E QUICK START GUIDE APS 6.0 User Manual

Page 76

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Glossary

G–3

off line: Describes devices not under direct communication. For example, when
programming the software.

online: Describes devices under direct communication. For example, when the
software is monitoring the program file in a controller.

operating cycle: The sequential order of operations performed by a programmable
controller when in the run mode.

OTE (OuTput Energize): An instruction that energizes when a rung is true and
de-energizes when a rung is false.

output device: A device, such as a pilot light or a motor starter coil, that receives
data from the programmable controller.

output scan: A part of the SLCs operating cycle. During this scan the output data
file information is transferred to the output modules.

processor: A Central Processing Unit. (See CPU.)

processor configuration: A report detailing the configuration of the processor.

processor file: The set of program and data files used by the SLC to control output
devices. Only one processor file may be stored in the SLC at a time.

processor overhead: The part of the operating cycle used for housekeeping and
setup purposes.

program file: The area within a processor file that contains the ladder logic
program.

program listing: A report containing a range of program files or a range of rungs.

program mode: When the SLC is not executing the processor file and all outputs
are de-energized.

program scan: A part of the SLCs operating cycle. During the scan the ladder
program is executed and the Output data file is updated based on the program and
the Input data file.

rack: See chassis.

read: To acquire data from a storage place. For example, the processor READs
information from the input data file to solve the ladder program.

report: A printable document containing information about a processor file. For
example, a ladder listing, a cross reference, the data tables, and the processor
configuration.

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