Rockwell-automation T8431 Trusted TMR 24Vdc Analogue Input Module - 40 Manual de usuario descargar pdf (Pagina 17)

Trusted

Module T8431

Issue 16 Sep 11 PD-T8431 17

3.2.2. Rack 2: STATE

This board provides the majority voted numerical input state. This indicates within which threshold

band the field input is in and module channel fault status.

Channel Description

1 Field input channel 1 state

2 Field input channel 2 state

40 Field input channel 40 state

Table 6 Rack 2: STATE descriptions

The numerical input state is returned as an integer value.

Value Description

8-15 Internal channel fault on module

7 Unknown

6 Over-range

5 High-High

4 High

3 Normal

2 Low

1 line fault

0 Underrange

Table 7 Rack 2: STATE bit descriptions

The input channel has a value 7 (Unknown) when:

1. The input channel cannot be correctly measured by two or more slices of the TMR input

module.

2. The TMR Processor detects a 2-oo-3 channel discrepancy between the three slices of the

TMR input module.

3. The module is simulated (not installed or the TMR Processor cannot communicate with 2-oo-

3 slices of the module).

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Rockwell-automation T8431 Trusted TMR 24Vdc Analogue Input Module - 40 Manual de usuario Pagina 17