ABB UNS 4908AVAR5006 Order number 3ADT218437R0002 Converter
done bumplessly without interrupting
the normal operation of the system
and process.
The operating system, RTTS, routinely
executes a hot repair task, checking
and validating that all configuration
data is correct, eg. correct I/O
module, on-line/off-line hot repair
functions.
There are three ways to replace an
on-line I/O module:
• Module with no additional hot
repair slot – single slot hot repair
• Module has an unpopulated hot
repair partner slot – manual hot
repair
• Module with a populated hot repair
partner slot – hot repair
• 16 channel – analogue input
• 4 channel – analogue output
• 16 channel – digital output with line
monitoring
• 4 channel – pulse input
DIN rail mounted termination cards
for field wiring can be supplied as an
easy to fit method to route field cables
to the Triguard SC300E system I/O
modules, and distribute field wetting
current to each I/O point.
A termination card has an associated
system cable fitted with DIN
connectors to provide the plug and
socket arrangement. Cable lengths can
be specified to suit the application.
Alternative cables with Elco
connectors or free wires at the field
end are available for third party
marshalling systems.
Power and fusing for the field circuits
are standard. Options are available to
suit all field configurations.
System cables from the Triguard
SC300E are also available with free
wire ends so that the system may
connect to a separate cable
marshalling and power/fusing system.

Cabinet Layouts
Optional cabinets to house the
Triguard SC300E TMR control system
are industry standard 19” rack
mounted configurations with a width
of 600mm and a depth of 800mm. The
layouts shown are based on a standard
A fully distributed safety system,
using the Triguard SC300E, can be
configured by utilising a Safeway
8000 bus structure and the
Triguard peer to peer safety
approved protocol.
2000mm high cabinets, and provide
front and rear access. Front access
only configurations are available.
System Structure
A major benefit of the Triguard
SC300E system is that it can be as
small as one chassis or as large as 15,
giving a 9,500 total I/O capacity. The
TMR bus extender modules and cable
sets are used to size the system to suit
the application. Interfacing to remote
TMR I/O chassis or gateway modules
to connect to DCS networks, can
be provided to suit a combined
distributed safety and control strategy.
A customer who has a future
requirement to add to an existing
system will find the Triguard SC300E
easy and economical to extend.
Forward and backward compatibility
means that users can readily intermix
CS300 and Triguard SC300E systems
using the same programming tools.
Application logic written for a CS300
system will run with minimum
modification on the Triguard SC300E.