Rockwell Automation T8444 Trusted TMR Pulse Generator and Monitoring Module - Manual (Page 29)

Trusted
TM
Module T8444
Issue 09 Apr 10 PD-T8444 29
4.3. I/O Status LEDs
There are 40 channel status indicators on the module front panel, one for each field input/output.
These 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 input/output status indicator mode is dependent upon the numerical state of the channel. Each
state can be defined to have a particular indicator mode: off, green, red, flashing green, or flashing red.
The configurable indicator modes allow users to customise the status indications to suit individual
application requirements. Without customisation, the default indicator modes are suitable for damper
control installations as described below. Each channel is provided with a Bicolour Led. The channel
LED’s illuminate as follows.
4.3.1. Outputs and Gate Outputs
Function Off Green
Steady Green
Flash Red
Steady Red
Flash Amber
Steady Amber
Flash Note
Output off no
faults Yes Not
allowed Not
allowed Slice LED’s Green
Output Off with
Module Fault Yes Not
allowed Not
allowed Slice LED’s Red
Output Off with
field Fault Not
allowed Not
allowed Yes Slice LED’s Green
Output off with
Module and
Field Fault Not
allowed Not
allowed Yes Slice LED’s Red
Output on No
Faults Not
allowed Not
allowed Yes Slice LED’s Green
Output On with
Module Fault Not
allowed Not
allowed Yes Slice LED’s Red
Output On with
Field Fault Not
allowed Not
allowed Yes Slice LED’s Green
Output on with
Module and
field Fault Not
allowed Not
allowed Yes Slice LED’s Red
Table 14 Default I/O Status Indicators