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General
S800 I/O is a comprehensive, distributed and modular
process I/O system that communicates with parent controllers
over industry-standard field buses. Thanks to its broad
connectivity it fits a wide range of process controllers
from ABB and others.
By permitting installation in the field, close to sensors
and actuators, S800 I/O reduces the installation cost
by reducing the cost of cabling. And thanks to features
such as "hot swap" of modules, "on-line"
reconfiguration and redundancy options, it contributes
to keeping production -- and thereby profits up.
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Data
Types
Digital process interfacing modules typically provide
16 channels while analog modules offer 8. Since an S800
I/O station can accommodate 12 I/O modules, this means
up to 192 digitals or 96 analogs per station or any
mix between the two extremes. The I/O modules of a station
can all be mounted on a single rail or be distributed
across several, in the latter case using plug-in interconnecting
cables. These alternatives make S800 I/O fit a wide
range of standard wall-mounting and floorstanding enclosures.
A fiber-optic ModuleBus even makes it possible to break
up S800 I/O stations into clusters installed hundreds
of meters apart, i.e., a cost-effective and noise-immune
way of implementing distributed control.
Connectivity
There are inputs and outputs for industry- standard
DC and AC signal levels and devices, including resistancetemperature
sensors and thermocouples. There are even pulse and
frequency counters as well as intrinsic safety interfacing
modules. So just about all the process devices we can
think of can be wired up to S800 I/O stations with a
minimum of field cabling and intermediate signal conditioning.
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