Rockwell Automation T8424 Trusted TMR 120Vac Digital Input Module - Manual (Page 19)

Trusted TM Module T8424
Issue 8 Sep 11 PD-T8424 19
Each input within the housekeeping rack is reported as an integer. In general, the application
engineer will not normally require these inputs. They are provided to aid fault finding and diagnosis
and are often used for reporting and display purposes. If a slice is off-line, then all reported
housekeeping inputs are set to zero.
3.2.8. Rack 8: Information
Channel Description
1 Active module chassis number
2 Active module slot number
3 Active module healthy
4 Active module state
5 Standby module chassis number
6 Standby module slot number
7 Standby module healthy
8 Standby module state
9 Fault Containment Region (FCR) status
10 Primary module is active
11 Active module is simulated
Table 11 Rack 8: INFO descriptions
The active module chassis and slot numbers indicate the position of the currently active module.
These values will change to match the primary or secondary module position, depending on their
active status, i.e. active/standby changeover will “swap” the values for the active module chassis and
slot number channels with those in the standby module chassis and slot number channels.
The active and standby module healthy channel is returned as an integer. A value of 0 indicates that
a fault has been detected, a value of ‘1’ indicates that the module is healthy.
The active and standby module state is an integer indicating the current operating mode of the
associated module. The value indicates the current internal operating mode of the module.
Value Module State
5 Shutdown
4 Maintain
3 Active
2 Standby
1 Configuration
0 Unknown, no module present, or module is Fatal
Table 12 Rack 8: INFO bit descriptions
The FCR status channel reports the fault status of each slice of the active and standby modules. The
value is bit-packed as shown below, the least significant byte is used with the most significant 8-bits
set to zero: