Rack 3: Ai - Channel Field Voltage - Rockwell Automation Trusted TMR 120 Manual

Trusted TMR 120 Vac Digital Input Module 40 Channel
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 2oo3 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 2oo3 slices of the Module).
3.2.3.

Rack 3: AI - Channel Field Voltage

The AI board returns the field loop voltage at the input.
The voltage is the median value taken from the triplicated Module. The voltage level is
reported as an integer, with the units being
corresponds to a 100 Vac RMS input signal amplitude. This may be used directly, scaled
arithmetically or scaled using the IEC 61131 TOOLSET conversion tables.
The IEC 61131 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.
Rockwell Automation Publication ICSTT-RM450C-EN-P
Value Description
1 N/A
0 FTA to Module Open circuit.
Table 6 Rack 2: STATE Input Bit Descriptions
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
1 / V, i.e. a reported value of 10000
100
Issue 11
3. Application
15