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Requirement for sensor
To achieve SIL3/Cat.3/PLd using this wiring, you must use a qualified sensor.
(FAIW-004)
Cabling
You must use shielded cables to ensure installation free of interference voltage.
(FAIW-005)
Parameter assignment
Set the following parameters for the corresponding channel:
Parameter
Measurement type
Measuring range
Behavior after channel fault
Interference frequency suppression
HART gate
Diagnostics, Wire break
Smoothing
HART enabled
Number HART message frame repetitions
Diagnostics HART
F-AI 8xI 2-/4-wire HART HA
Equipment Manual, 09/2021, A5E50557845-AA
6.5 Application case 2a: SIL3/Cat.3/PLd, 4-wire transmitter, 1oo1 (high availability)
WARNING
WARNING
Applications of the F-I/O module
Channel with external sensor supply
Current (4‑wire transmitter)
0 to 20 mA / 4 to 20 mA
Passivate the channel / passivate the entire module
50 Hz / 60 Hz
On / Off
In the measuring range 4 to 20 mA: Activated / deactivated
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In the measuring range 4 to 20 mA: Activated / deactivated
In the measuring range 4 to 20 mA: 0 to 10
In the measuring range 4 to 20 mA: Activated / deactivated
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