Rockwell Automation Publication 1766-UM001O-EN-P - September 2021 301
Glossary
status The condition of a circuit or system, represented as logic 0 (OFF) or 1 (ON).
terminal A point on an I/O module that external I/O devices, such as a push button or
pilot light, are wired to.
throughput The time between when an input turns on and the corresponding output turns
on.
true The status of an instruction that provides a continuous logical path on a ladder
rung.
upload Data is transferred to a programming or storage device from another device.
watchdog timer A timer that monitors a cyclical process and is cleared at the conclusion of each
cycle. If the watchdog runs past its programmed time period, it causes a fault.
workspace The main storage available for programs and data and allocated for working
storage.
write To copy data to a storage device. For example, the processor WRITEs the
information from the output data file to the output modules.
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