Rockwell Automation T8094 8000 Series TMR System Safety Manual User Manual
Page 101
SAFETY MANUAL
D oc N umber T8094
I ssue 27 – June 2013
Page 80 of 103
The migrated system will support the pre-existing configuration of the CS300 I/O
modules. Communications which existed from the legacy CS300 system to
workstations, printers and distributed control systems must be provided through the
T8151 communications interface module.
PI-664/PI-774 serial communication board(s) (if fitted) must be removed.
The system checks output module signals by test routines within the migrated
application or by using output line monitoring units. Inputs are checked by a 2oo3
comparison or (for digital inputs) with the addition of test routines in the application.
The migration supports all of the PI-316 extension racks present in the original system.
The existing cabling between the extension racks remains unchanged.
9.6.1 T8162 CS300 Bridge Module
The system is designed to use three identical T8162 CS300 bridge modules. The data
from the three modules is 2oo3 voted and discrepancy checked by the 8110 TMR
processor module.
A faulted CS300 bridge module should be replaced as soon as practical, and must be
replaced within 24 hours. The system requires two unfaulted bridge modules at all
times, and so if a second CS300 bridge module is faulted before the first faulted
module is renewed, the system will shut down.
Each of the CS300 bridge modules must be powered from the existing PI-331 triple
redundant power supply units (PSUs) which support the main CS300 I/O chassis.
Note: Each CS300 bridge module consumes less power (and creates less heat) than
the original ICCB which it replaces.
The CS300 chassis carries three sets of four backplane jumpers, these are located
behind the slots in the chassis for the three CS300 bridge modules. These jumpers set
up the address of the chassis. It is strongly recommended that these jumpers are set
to represent Trusted
TM
address‘2’. The jumpers in each set of four are labelled 0, 1, 2
and 3. Fit a jumper link to jumper 1 only (in positions A, B and C) to configure
address ‘2’.