Rockwell-automation T8424 Trusted TMR 120Vac Digital Input Module Manual de usuario descargar pdf (Pagina 16)

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Module T8424

Issue 8 Sep 11 PD-T8424 16

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escription

7 Faulted

6 N/A

5 N/A

4 Closed contact (ON)

3 N/A

2 Open contact (OFF)

1 N/A

0 FTA to module Open circuit.

Table 6 Rack 2: STATE Input 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).

3.2.3. Rack 3: AI - Channel Field Voltage

The AI board returns the field loop voltage at the input.

Channel Description

1 Field input channel 1 voltage

2 Field input channel 2 voltage

40 Field input channel 40 voltage

Table 7 Rack 3: AI -Channel Field Voltage descriptions

The voltage is the median value taken from the triplicated module. The voltage level is reported as an

integer, with the units being

100

V, i.e. a reported value of 10000 corresponds to a 100VAC RMS input

signal amplitude. This may be used directly, scaled arithmetically or scaled using the IEC1131

TOOLSET conversion tables.

The IEC1131 TOOLSET conversion tables may be used to convert the input value to engineering

units, in this case voltage. The full-scale range for this number format is decimal ±327.67,

corresponding to physical range –32768 to +32767. Other units may be chosen depending on the

numeric resolution and span of the desired result.

When the TMR Processor detects a 2oo3 channel fault or discrepancy, or if the input module is

simulated, the input voltage numeric value is reported as –2048.

3.2.4. Rack 4: SPARE

This rack is reserved for future use and is included for consistency with other High Integrity I/O

modules.

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 28 29

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Rockwell-automation T8424 Trusted TMR 120Vac Digital Input Module Manual de usuario Pagina 16

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