supporting Sequence of Events

Publication 1732E-UM002A-EN-P - March 2010
Glossary 109
sinking
A term used to describe current flow between an I/O device and controller
I/O circuit — typically, a sinking device or circuit provides a path to ground,
low, or negative side of power supply.
sourcing
A term used to describe current flow between an I/O device and controller
I/O circuit — typically, a sourcing device or circuit provides a path to the
source, high, or positive side of power supply.
status
The condition of a circuit or system, represented as logic 0 (OFF) or 1 (ON).
Subnet Mask
The method for splitting Internet protocol (IP) networks into a series of
subgroups, or subnets.
terminal
A point on an I/O module that external I/O devices, such as a push button or
pilot light, are wired to.
timestamping
Timestamping is a feature that registers a time reference to a change in input
state.
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.
WEEE
Waste Electrical and Electronic Equipment. European Community (EC)
Directive on Waste Electrical and Electronic Equipment. The purpose of the
Directive is to reduce waste arising from electronic equipment, improve