Register map(s) for this device, with a note of how far each has been checked. Addresses are 0-based, as on the wire. Scale and byte order are confirmed only at the hardware-verified rung.
Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.
| point | address (0-based) | type | scale | unit |
|---|---|---|---|---|
| device_status_1000 | 1000 | U32BE | 1 | |
| device_error | 1002 | U32BE | 1 | |
| device_warning | 1004 | U32BE | 1 | |
| device_status_4000 | 4000 | U32BE | 1 | |
| measurement_status | 4002 | U32BE | 1 | |
| ullage | 4008 | F32BE | 1 | m |
| signal_strength | 4012 | F32BE | 1 | mV |
| lpg_corr_error | 4702 | U32BE | 1 | |
| gain | 5112 | F32BE | 1 | |
| ram_error | 6000 | U32BE | 1 | |
| fprom_error | 6002 | U32BE | 1 | |
| database_hreg_error | 6004 | U32BE | 1 | |
| other_memory_error | 6006 | U32BE | 1 | |
| microwave_module_error | 6008 | U32BE | 1 | |
| rm_error | 6010 | U32BE | 1 | |
| other_hardware_error | 6022 | U32BE | 1 | |
| configuration_error | 6028 | U32BE | 1 | |
| software_error | 6030 | U32BE | 1 | |
| ram_warning | 6100 | U32BE | 1 | |
| fprom_warning | 6102 | U32BE | 1 | |
| hreg_warning | 6104 | U32BE | 1 | |
| other_memory_warning | 6106 | U32BE | 1 | |
| mwm_warning | 6108 | U32BE | 1 | |
| rm_warning | 6110 | U32BE | 1 | |
| other_hardware_warning | 6122 | U32BE | 1 | |
| configuration_warning | 6128 | U32BE | 1 | |
| sw_warning | 6130 | U32BE | 1 |
⚠ WARNING - Substitution of components may impair Intrinsic Safety. WARNING - To prevent ignition of flammable or combustible atmospheres, disconnect power before servicing. — Starkest reads only; we never write a control register.
| terminals | X1: Tankbus in, X2: Terminate on, X3: Shield loop through, X4: Tankbus out, Test terminals |
| A/B polarity | Polarity insensitive |
| termination | Built-in Tankbus terminator, enabled by inserting a jumper in the terminal block (X2) |
| connector | Two 1/2 - 14 NPT entries; optional M20x1.5, minifast, or eurofast adapters |
| isolation | Cable shield inside the terminal compartment must be isolated; X3 connector is separated from chassis ground |
| shield/ground | Single grounding point for shield wire located at the power supply |
| power | FISCO: 9.0 - 17.5 VDC, Entity: 9.0 - 30.0 VDC. Polarity insensitive. Quiescent current draw: 51 mA (50 mA bus current draw). Lift-off minimum voltage: 9.0 VDC |
| environment | Use wire rated at least 5 °C above maximum ambient temperature |
| certifications | FISCO/Entity compliant, FM USA/Canada AIS Class I Div 1, ATEX/IECEx Ex [ia] or Ex [ib] (FISCO) / Ex [ia] (Entity), CE, FCC, IC |
| doc revision | 00809-0100-5901, Rev DD, September 2024 |
Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.
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