Register map(s) for this device, each at the trust rung it earned. Addresses are 0-based as on the wire; word order and scaling are only confirmed at the hardware-verified rung.
Read + decoded cleanly over a real network vs an independent third-party Modbus test server (transport and framing; reads are remapped into the server's register window, so the map's own addresses are NOT exercised). Does NOT prove word order/scaling against the actual device.
| point | address (0-based) | type | scale | unit |
|---|---|---|---|---|
| status_register_0 | 0 | U16 | 1 | |
| status_register_1 | 1 | U16 | 1 | |
| status_register_2 | 2 | U16 | 1 | |
| flow_rate | 200 | F32BE | 1 | ft/s |
| totalizer_a_value | 202 | F32BE | 1 | gal |
| totalizer_b_value | 204 | F32BE | 1 | gal |
| totalizer_c_value | 206 | F32BE | 1 | gal |
| electronics_temperature_value | 208 | F32BE | 1 | °F |
| line_noise_value | 210 | F32BE | 1 | mV |
| snr_5hz | 212 | F32BE | 1 | |
| snr_37hz | 214 | F32BE | 1 | |
| signal_power | 216 | F32BE | 1 | |
| empty_pipe_value | 218 | F32BE | 1 | |
| electrode_coating_value | 220 | F32BE | 1 | kΩ |
| electrode_resistance_value | 224 | F32BE | 1 | Ω |
| coil_resistance_value | 226 | F32BE | 1 | Ω |
| coil_inductance_value | 228 | F32BE | 1 | |
| coil_current | 236 | F32BE | 1 | mA |
| terminals | Terminal 1: Modbus (B), Terminal 2: Modbus (A). Terminal block screws: 6-32 (No. 6) suitable for up to 14 AWG wire. |
| A/B polarity | Modbus (A) and Modbus (B) |
| termination | Typically 120 ohms. |
| connector | Terminal block |
| isolation | Galvanically isolated frequency signal (for pulse). Modbus output circuit is internally powered (Active): Outputs up to 3.3 VDC, 100 mA, 100 mW. |
| shield/ground | Safety grounding screws: External stainless assembly, M5; internal 8-32 (No. 8). |
| wiring notes | Conduit entries available in 1/2 inch NPT or M20. |
| protocol notes | Minimum response delay is used to synchronize Modbus communications with hosts that operate at a slower speed than the transmitter. This value can be configured as an integer from 0 to 250 ms. The default value is 10 ms. |
| model register | 120 |
| serial register | 151 |
| firmware register | 16 |
| identification notes | Register 120 is Manufacturers Device Type Code, Register 121 is Manufacturers Id Code, Register 151 is Device Identification Number, Register 153 is Primary Variable Sensor Serial Number, Register 16 is Transmitter software revision. |
| power | AC power: 90–250 VAC, 0.45 A, 40 VA; Standard DC power: 12–42 VDC, 1.2 A, 15 W; Low power DC: 12–30 VDC, 0.25 A, 4 W |
| environment | Ingress protection: IP66, IP69. NEMA 4X. Pollution Degree 2. Operating temperature: -58 to 140 °F (-50 to 60 °C) without LOI/Display, -4 to 140 °F (-20 to 60 °C) with LOI/Display. Humidity: 0-95% RH to 140 °F (60 °C). |
| accuracy | 0.25% Standard 0.15% High Accuracy Option |
| certifications | Rosemount 8700M Approval Document - IECEx and ATEX, Class Division, North America Zone, NEPSI EN Zone 1 China |
| doc revision | 00809-0400-4444, Rev AC, August 2024 |
| firmware applicability | 4.4 software or later |
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