Rockwell Automation T8151 Trusted Communications Interface - Manual

SDS-8151
Trusted
TM Industrial Control System
Trusted TM Communications Interface T8151
Issue 6 Jan 2006
FRONT PANEL
DESCRIPTION
The
Trusted TM Communications
Interface provides the Trusted TM
Controller with an intelligent
communications interface which acts
as a relay between the Trusted
TM
processor and other systems, i.e. the
Engineering Workstation (EWS) and
third-party systems. This minimizes
communications
loading of the
Trusted TM Processor.
The module has a Motorola 600
series processor and MPC106 PCI
bridge/memory
controller, its
associated memory and glue logic.
There is also a site for a PCI
mezzanine card for future expansion.
The module communicates with the
Trusted
TM Processor via the
triplicated Inter-Module Bus (IMB).
When polled by the processor, the
module’s Bus Interface 2-oo-3 votes
the data from the IMB, and transmits
back its reply via all three channels.
The module implements
communications processing under the
control of the Trusted
TM Processor.
Messages received from the
processor, or an external link, are
validated, undergo the necessary
protocol conversion, and are then
forwarded to their destination.
An electrically isolated RS232
diagnostics serial port is provided on
the front panel of the module for
interfacing to the EWS.
The module receives a dual 24V dc
supply from the Controller backplane.
An on-board power supply unit
provides voltage conversion for the
module
electronics, supply
conditioning and protection.
Configuration of the module is carried
out using the Trusted
TM Toolset
running on an Engineering
Workstation. Once configured and
loaded into the Trusted
TM Controller,
replacement modules are on-line
educated by the TMR Processor.
FEATURES
Dual Ethernet and four serial
ports available
Support for a wide range of
communications protocols
Secure, dependable
communications via high
performance communications
links
Trusted TM Operating System
Built-in hardware and software
self-testing
Hot replaceable
Front panel serial diagnostics
port
Module fault and status
indicators
IEC 61508, SIL 3 safety
applications
Provision for future system
expansion