Rockwell-automation T8472 Trusted TMR 120V ac Isolated Output Module Manual de usuario descargar pdf (Pagina 16)

Trusted

Module T8472

Issue 13 Sep 11 PD-T8472 16

Value Description

7 Channel fault

6 Field fault (e.g. field leakage to 0V or 24V)

5 Short circuit in field wiring or load

Output energised (ON)

3 Open circuit in field wiring or load

2 Output de-energised (OFF)

1 No field supply voltage

0 Unused

Table 7 Rack 2: STATE Output descriptions

3.2.3. Rack 3: AI - Channel Field Voltage

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

Channel Description

1 Field output channel 1 voltage

2 Field output channel 2 voltage

16 Field output channel 16 voltage

Table 8 Rack 3: AI descriptions

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

integer, with the units being

125

V. This may be used directly, scaled arithmetically or scaled using the

IEC1131 toolset conversion tables.

To scale the value arithmetically simply divide the returned ‘integer’ by 125 to return the voltage as

either a REAL or INTEGER as required.

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Rockwell-automation T8472 Trusted TMR 120V ac Isolated Output Module Manual de usuario Pagina 16