Rockwell Automation T8110B/T8110 Trusted TMR Processor - Manual (Page 12)

Trusted
TM
TMR Processor T8110B/T8110
Issue 18 Feb 08 PD-T8110B/T8110 12
3. Application
3.1. Module Configuration
The Trusted TM TMR Processor requires no hardware configuration.
Every Trusted TM system requires a System INI Configuration file. Details of how to design this are
given in PD-8082B (Trusted TM Toolset Suite). The configuration has a processor assigned to the left
slot of the processor chassis by default. The System Configurator allows the selection of options on
ports, IRIG and system functions. The use of the System Configurator is described in PD-8082B. The
options are described below.
3.1.1. Updater Section
If Auto Protect Network Variables is selected, this configures the Trusted TM System to use a reduced
Modbus Protocol map. See product description PD-8151B (Trusted TM Communication Interface
Module) for further details.
Inter Group Delay equates to the Modbus update cycle. This is the minimum period between
successive Modbus update messages sent to each of the Communications Interface modules. The
default value (as shown) is 50ms which provides a compromise between latency and performance.
Adjustment is made in 32 integer ms increments, i.e. a value of 33 will equal 64ms as will 64.This may
be increased or decreased as required, however since only one update message is sent per
application scan, and an application scan may often be more than 50ms, there is little benefit in
adjusting this variable.
3.1.2. Security Section
The above display is also used to configure a password allowing the user to interrogate a Trusted TM
System using the Windows-based HyperTerminal facility or a similar terminal program. The password
is configured by selecting the New Password button and entering the new password twice in the
displayed dialogue box.
3.1.3. ICS2000 Section
This section only applies to Trusted TM systems connected via a Trusted to ICS2000 Interface Adapter
to an ICS2000 system. This allows the data sources for the three mimic tables to be selected. Please
refer to your Trusted
TM supplier for further information.
3.1.4. System Section
WARNING
Changes made to the System Section may affect System performance, Fault Detection times and
violate the process safety tolerances.
Entries to this section are typed directly into the SYSTEM Section text window.
Definitions
NIO Module = Native Input or Output (I/O) Module. This refers to all I/O modules resident in a
Trusted
TM chassis. It does not refer to I/O modules resident in other chassis types and communicating
via a bridge interface module.
Dual I/O = Module using two voted circuits to connect to a field device.
TMR I/O = Module using three voted circuits to connect to a field device.