Hardware Components; I/O Modules - ABB S800 Product Manual

Section 2 Product Description

Hardware Components

The highly modularized hardware of S800 I/O includes the following components:
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The communication interface modules, Optical ModuleBus Modem, MTUs
and S800 I/O modules are mounted on standard DIN-mounting rails according 
to EN50022 NS 35/7,5.
An S800 I/O station can consist of a base cluster and up to 7 additional I/O clusters.
The base cluster consists of a communication interface module and up to 12 I/O
modules. I/O cluster 1 to 7 consist of an Optical ModuleBus Modem and up to 12
I/O modules. An S800 I/O station can have up to 24 I/O modules in total. I/O cluster
1 to 7 are connected to the communication interface module through an optical
expansion of the ModuleBus.

I/O Modules

There are two types of S800 I/O modules:
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3BSE015969-600 A
I/O Modules
Module Termination Units (MTUs).
Fieldbus Communication Interface
ModuleBus Items
S800 I/O modules designed to be used together with the Module Termination
Units. See Figure 20
S800L I/O modules
– designed to be directly mounted on a standard DIN-rail and containing
process connection, via detachable connectors. The S800L modules have
only mechanical lock device and cannot be removed with power on.
– as accessories to 24 V DI/DO modules, Terminal Unit TU805 enables 2-
and 3-wires connections, see
and Figure 22.
Figure
Hardware Components
17.
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