Specifications
Glossary
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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.
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.
input filtering
The amount of time that a sensor must hold its signal on or off before the input
module detects the change of state.
input polarity
An input channel’s polarity determines when the input module sends a 1 and when
it sends a 0 to the master controller. If the polarity is normal, an input channel sends
a 1 to the controller when its field sensor turns on. If the polarity is reverse, an input
channel sends a 0 to the controller when its field sensor turns on.
input response time
The time it takes for an input channel to receive a signal from the field sensor and
put it on the Island bus.
INTERBUS protocol
The INTERBUS fieldbus protocol observes a master/slave network model with an
active ring topology, having all devices integrated in a closed transmission path.