Rockwell Automation T80015 Application Note Trusted SC300E Migration Process - Manual (Page 5)

Trusted TM
AN-T80015
Issue 01 Apr 08 AN-T80015 Page 5 of 16
1.4.3. Firmware calls
The SC300E application has several calls to the system firmware such as USR3, USR4,
FALT etc. These are user configured and may have bespoke code designed to execute away
from the application ladder. This means that if some of the functions in SC300E systems may
need redesigning and they cannot be translated easily into ladder, structured text etc. Some
calls usually involve system diagnostic functions, and can be replaced by application logic
diagnostics.
1.4.4. Diagnostics
I/O module and system diagnostics flags are listed in PD 8161 for the SC300E products.
With Trusted TM a terminal program may be used to access a command line interface, where
commands are available to extract information on SC300E module status and chassis
configuration. Diagnostic data on module health, discrepancies and LFD errors is also
available in the application through the I/O connection boards for each module.
1.5. Mechanical upgrade
Remove the SC300E MPPs and replace with the 3x Trusted TM 8161 Bridge Modules.
The Bridge module requires minimum configuration, namely the setting of Unit ID jumpers 0
to 3 to define the chassis address to Trusted™.
Clicking on a SC300E chassis in the Trusted TM System Configuration tool and selecting
‘Jumper config’ will display the required jumper settings for that chassis.
Connectors J1-3 on the TC-325-02 card, plug into the three 26-way diagnostic headers on
the SC300E backplane. The Hotlink cable from the Trusted
TM Expander Interface adapter
plugs into 12-way J4.
Due to the low current requirements of the 5v supply to the 8161 Bridge modules may be
necessary to fit a MXD dummy load module in the chassis, if no I/O modules are installed.
This is to provide a minimum load for the chassis 5Vdc power supplies.