Rockwell Automation T8448 Trusted TMR Zone Interface Module - 40 Channel - Manual (Page 31)

Trusted
TM
Module T8448
Issue 14 Apr 10 PD-T8448 31
The module channel number may be 1 to 40. The thresholds relate to the channel voltages returned in
rack 3. Channel 1 is used to control writing the threshold data specified in channels 4 to 11 to the
module channel specified in channel 3. The threshold data will be echoed back in rack 9. Channel 2 is
used to control reading the thresholds of the module channel specified in channel 3. The thresholds will
be reported in rack 9. The reading or writing is triggered by a 0 to 1 transition in the relevant control
register.
The signal values are as follows:
Word 1: Clock out the threshold data. To write the threshold data to the module.
The clock is on a rising edge. Range 0 to 1.
Word 2: Clock in the threshold data. To read the threshold data from the module.
The channel that is read is defined by Word 3.The clock is on a rising edge. Range 0 to 1.
(New threshold will appear on RACK 1.)
Word 3: Channel number to write/read threshold data. Range 1 to 60.
Word 4: LOW-LOW falling Threshold.
Word 5: LOW-LOW rising Threshold.
Word 6: LOW falling Threshold.
Word 7: LOW rising Threshold.
Word 8: HIGH falling Threshold.
Word 9: HIGH rising Threshold.
Word 10: HIGH-HIGH falling Threshold.
Word 11: HIGH-HIGH rising Threshold.
3.3. Sequence of Events Configuration
Each Boolean Variable can be configured for automatic Sequence of Events (SOE) logging. This
applies to the Input/Output Status and Line Fault Status variables. A Boolean variable is configured for
SOE during the variable definition in the Data Dictionary Editor. To select SOE, press the Extended
Button in the Boolean Variable Definition Dialog Box to open the Extended Definition Dialog. Then
check to box for Sequence of Events to enable the variable for automatic SOE logging.
During operation, the module automatically reports time-stamped change of state information for the
input/output data. The TMR Processor automatically logs change of state for configured SOE
variables into the system SOE Log. The SOE Log can be monitored and retrieved using the SOE and
Process Historian Package running on the EWS. This software package is described in PD-8013.
3.4. SYSTEM.INI File Configuration
There are many operating characteristics of the module that can be customised for a particular
application. The System Configuration Manager is a tool that allows the user to configure the specific
operating characteristics for each module. Descriptions of the items that may be configured for the
Trusted
TM 24V dc Zone Interface Module 8448 are contained in PD-8082B.
Certain characteristics apply to the entire module and are considered Module Configurable Items.
Other characteristics apply to individual input/output channels and are considered Channel
Configurable Items. There are specific default settings for each of the configurable items. If the
default settings are appropriate for a given application, then customization of the module definition in
the System Configuration Manager is not required