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 |
|---|---|---|---|---|
| actual_flow | 0 | F32LE | 1 | |
| actual_temp | 2 | F32LE | 1 | |
| actual_pressure | 4 | F32LE | 1 | |
| actual_total | 6 | F32LE | 1 | |
| alarm_status | 8 | U16 | 1 | |
| gas_index | 17 | U16 | 1 | |
| flow_unit_index | 22 | U16 | 1 | |
| user_full_scale | 23 | F32LE | 1 | |
| totalizer_unit_index | 27 | U16 | 1 | |
| temperature_unit_index | 29 | U16 | 1 | |
| pressure_unit_index | 34 | U16 | 1 | |
| standard_temperature | 35 | F32LE | 1 | |
| standard_temperature_index | 37 | U16 | 1 | |
| standard_pressure | 38 | F32LE | 1 | |
| standard_pressure_index | 40 | U16 | 1 | |
| normal_temperature | 41 | F32LE | 1 | |
| normal_temperature_index | 43 | U16 | 1 | |
| normal_pressure | 44 | F32LE | 1 | |
| normal_pressure_index | 46 | U16 | 1 | |
| alarm_active | 61 | U16 | 1 | |
| alarm_mode | 62 | U16 | 1 | |
| low_alarm_flow_trig | 63 | F32LE | 1 | |
| high_alarm_flow_trig | 65 | F32LE | 1 | |
| low_alarm_temp_trig | 67 | F32LE | 1 | |
| high_alarm_temp_trig | 69 | F32LE | 1 | |
| low_alarm_pressure_trig | 71 | F32LE | 1 | |
| high_alarm_pressure_trig | 73 | F32LE | 1 | |
| low_alarm_total_trig | 75 | F32LE | 1 | |
| high_alarm_total_trig | 77 | F32LE | 1 | |
| pipe_diameter | 79 | F32LE | 1 | |
| pipe_roughness | 81 | U16 | 1 | |
| pipe_diameter_units_index | 82 | U16 | 1 | |
| flow_correction | 83 | F32LE | 1 | |
| totalizer_enable | 85 | U16 | 1 | |
| totalizer_units_per_pulse | 86 | F32LE | 1 | |
| totalizer_pulse_width | 88 | U16 | 1 | |
| totalizer_reset | 89 | U16 | 1 |
⚠ Before making adjustments to the device, verify the flow meter is not actively monitoring or reporting to any master control system. Adjustments to the electronics will cause direct changes to flow control settings. — Starkest reads only; we never write a control register.
| terminals | A terminal 13, B terminal 14, terminal 15 (Com) |
| A/B polarity | A (-), B (+) |
| termination | 120 Ohm resistors at both ends of the cable |
| connector | Terminal board inside the QuadraTherm enclosure |
| isolation | Optical isolated RS-485 interface, 1,500 Volts of isolation |
| shield/ground | Connect the RS-485 common (shield wire) to terminal 15 (Com). It's better if it is not connected to Earth ground. |
| wiring notes | Use a 24 AWG shielded twisted pair cable, with low capacitance, 120 Ohm impedance like Belden 9841. |
| inter-frame delay | 8 ms |
| protocol notes | The bootloader will only be active during the first two seconds after a power-up of the flow meter. |
| serial register | 40116 |
| firmware register | 40120 |
| identification notes | PCA version at 40129 |
| power | Voltage: 24 VDC +/- 10%, Amperage: 1.1 A or optional AC Voltage: 100 to 240 VAC, Amperage: 0.4 Amps RMS at 230 VAC |
| certifications | CE directives |
| doc revision | IM640i/780iV2-Modbus Rev. V2.A |
| firmware applicability | v7.1 |
Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.
Have a device that isn't here? Upload its register map — generation is free, and the connector earns its rung by being proven, not claimed.
Need it proven on your own device? Hardware verification — if it doesn't verify, you don't pay.
Building a platform? License the verified library — machine-readable maps, firmware matrix, API access.