Specifications

Glossary
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EIO0000000051 6/2010
IEC
International Electrotechnical Commission Carrier. Founded in 1884 to focus on
advancing the theory and practice of electrical, electronics, and computer
engineering, and computer science. EN 61131-2 is the specification that deals with
industrial automation equipment.
IEC type 1 input
Type 1 digital inputs support sensor signals from mechanical switching devices such
as relay contacts and push buttons operating in normal environmental conditions.
IEC type 2 input
Type 2 digital inputs support sensor signals from solid state devices or mechanical
contact switching devices such as relay contacts, push buttons (in normal or harsh
environmental conditions), and 2- or 3-wire proximity switches.
IEC type 3 input
Type 3 digital inputs support sensor signals from mechanical switching devices such
as relay contacts, push buttons (in normal-to-moderate environmental conditions),
3-wire proximity switches and 2-wire proximity switches that have:
z a voltage drop of no more than 8 V
z a minimum operating current capability less than or equal to 2.5 mA
z a maximum off-state current less than or equal to 1.5 mA
IEEE
Institute of Electrical and Electronics Engineers, Inc. The international standards
and conformity assessment body for all fields of electrotechnology, including
electricity and electronics.
IGMP
(Internet group management protocol). This Internet standard for multicasting allows
a host to subscribe to a particular multicast group.
industrial I/O
An Advantys STB I/O module designed at a moderate cost for typical continuous,
high-duty-cycle applications. Modules of this type often feature standard IEC
threshold ratings, usually providing user-configurable parameter options, on-board
protection, good resolution, and field wiring options. They are designed to operate
in moderate-to-high temperature ranges.