Rockwell Automation 1771-ASB/E Remote I/O Adapter User Manual - Manual (Page 5)

Using This Manual P–3
Publication 1771ĆUM001A-US-P - February 2000
The following list defines common terms used in this manual.
Complementary I/O: An I/O technique that allows a PC to interface
with an input and output module using the same location address in
different I/O chassis.
Complementary Module: A module that performs an opposite
function; an input module complements an output module and vice
versa.
Standard–Density I/O Module: A module that provides up to 8 input
terminals or 8 output terminals.
High–Density I/O Module: A module that provides 16 input or 16
output terminals.
Quad–Density I/O Module: A module that provides 32 input or 32
output terminals.
I/O Group: An addressing unit that can contain up to 16 input
terminals and 16 output terminals.
PC: An Allen–Bradley programmable controller, such as the PLC–5.
Processor: A term used to mean an Allen–Bradley programmable
controller.
Half–Slot Addressing: A method of addressing where the processor
can address its I/O in 1/2–slot I/O groups.
One–Slot Addressing: A method of addressing where the processor
can address its I/O in 1–slot I/O groups.
Two–Slot Addressing: An method of addressing where the processor
can address its I/O in 2–slot I/O groups.
Terminology Used in This
Manual