Rockwell Automation 1747-L5xx SLC 500 Modular Hardware Style User Manual - Manual (Page 285)

Publication 1747-UM011G-EN-P - June 2008
Glossary 285
upload
Data is transferred from the controller to a programming or storage
device.
UVPROM
An Ultra-Violet light erasable Programmable Read Only Memory
module used to back-up, store, or transfer SLC 500 programs. The SLC
5/01 and SLC 5/02 processor can only read from a UVPROM. An
external PROM programmer is used to program (write to) the device.
voltage category
The nominal voltage used to describe the module.
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.
watts per point
The maximum heat dissipation that can occur in each field wiring
point when energized.
write
To send data to another device. For example, the processor writes
data to another device with a message write instruction.