Rockwell Automation T8449 Trusted TMR 24V dc Valve Monitor Module - 40 Channel - Manual (Page 38)

Trusted
TM
Module T8449
Issue 13 Apr 10 PD-T8449 38
4.2. Module Status LEDs
There are six module status indicators on the module front panel: three Healthy, one Active, one
Standby, and one Educated. The Healthy indicators are controlled directly by each module slice. The
Active, Standby, and Educated indicators are controlled by the FPU. The FPU receives data from
each of the module slices. The FPU performs a 2-oo-3 vote on each data bit from the slices and sets
the indicators accordingly.
The module status indicator modes and their meanings are described as follows:
INDICATOR STATE DESCRIPTION
Healthy Off No power applied to the module.
Green Slice is healthy.
Red – flashing Fault present on the associated slice.
Red Power applied to the associated slice.
Active Off Module is not in the Active state.
Green Module is in the Active (or Maintain) state.
Red – flashing Module is in the shutdown state.
Standby Off Module is not in the Standby state.
Green Module is in the Standby state.
Red – flashing Module is in the ‘passive’ shutdown state.
Educated Off Module is not educated.
Green Module is educated.
Green – flashing Education in progress.
Amber - Flashing Active/standby changeover in progress
Table 22 Module Status LEDs