Rockwell Automation T8472 Trusted TMR 120V ac Isolated Output Module - Manual (Page 16)

Trusted
TM
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
4 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
1 /
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.