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Modular Process I/O System - S800 I/O

Supplier: ABB Australia

Our I/O systems are comprehensive, distributed and modular. The I/O systems communicates with parent controllers over industry-standard field busses.


The modular I/O systems are extremely flexible and the optimal configuration of function and in mounting can always be made.

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.

Types of Modular Process I/O System - S800 I/O

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.


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.