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Module T8433

Issue 11 Apr 10 PD-T8433 21

3.2.4. Rack 4: THRSHOUT

This board allows the current thresholds for an analogue input channel to be read or written by the

application. The application can write new thresholds in the THRSHOUT board for a particular channel,

and it can read the current thresholds from the THRSHIN board, under control of a channel in the

THRSHOUT board.

Channel Description

1 Write the threshold data for a particular

input channel on channels 3 to 11 to the

module. The data is written on a rising

edge 0 to 1.

2 Read the threshold data for a particular

channel from the module to the THRSHIN

board. The data is read on a rising edge 0

to 1.

3 Channel number to write/read threshold

data. Range 1 to 20.

4 States 2 > 1 falling threshold

5 States 1 > 2 rising threshold

6 States 3 > 2 falling threshold

7 States 2 > 3 rising threshold

8 States 4 > 3 falling threshold

9 States 3 > 4 rising threshold

10 States 5 > 4 falling threshold

11 States 4 > 5 rising threshold

Table 10 Rack 4: THRSOUT descriptions

3.2.5. Rack 5: LINE_FLT

Channel Description

1 Field input channel 1 line fault

2 Field input channel 2 line fault

20 Field input channel 20 line fault

21 Field input channel 1 redundant line fault

40 Field input channel 20 redundant line fault

Table 11 Rack 5; LINE_FLT

The line fault input state is reported as true (logic ‘1’) for a line fault condition (open circuit,

indeterminate, or short circuit condition). The logic state is the majority voted value.