FBD Analog Scaling With Wire-Break Detection

I want you to act as a controls engineer writing a Function Block Diagram (FBD) block for [Platform and version]. It scales one analog input and detects bad signals. Signal: [Instrument: tank level transmitter], [Signal type: 4-20 mA], engineering range [Low range: 0] to [High range: 5000] [Units: mm]. Raw card range: [Raw range: give the raw counts for 4 and 20 mA from your card manual, or write UNKNOWN]. Requirements: 1. Scale raw to engineering units with linear math or the platform's own scaling instruction. 2. Quality states: Good, Wire break (under about 3.6 mA equivalent), Over-range (over about 21 mA equivalent). Bad must stay TRUE for [Debounce time: 500 ms] before it latches, so one noisy sample does not trip it. 3. When Bad, hold the last good value and set a Value_Hold flag. Do not pass a scaled value from a broken wire. 4. Alarm_Bad latches and clears only on a Reset with the signal Good again. If the raw range is UNKNOWN, do not assume one. Show where it goes and list it as a question. Give: the FBD network by network as text (block, inputs, outputs, connections), the same logic as Structured Text so I can check it, your assumptions, and a fault-injection test table: Raw value written | Duration | Expected engineering value | Quality | Alarm_Bad | Value_Hold