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 |
|---|---|---|---|---|
| Wink | 0 | U16 | 1 | |
| Initreset | 10 | U16 | 1 | |
| Measure | 32 | U16 | 1 | |
| Setpoint | 33 | U16 | 1 | |
| Setpoint slope | 34 | U16 | 1 | |
| Analog input | 35 | U16 | 1 | |
| Control mode | 36 | U16 | 1 | |
| Sensor type | 46 | U16 | 1 | |
| Capacity unit index | 47 | U16 | 1 | |
| Fluid number | 48 | U16 | 1 | |
| Alarm info | 52 | U16 | 1 | |
| Temperature | 1063 | U16 | 1 | |
| Alarm limit maximum | 3105 | U16 | 1 | |
| Alarm limit minimum | 3106 | U16 | 1 | |
| Alarm mode | 3107 | U16 | 1 | |
| Alarm setpoint mode | 3109 | U16 | 1 | |
| Alarm new setpoint | 3110 | U16 | 1 | |
| Alarm delay | 3111 | U16 | 1 | |
| Reset alarm enable | 3113 | U16 | 1 | |
| Counter value | 3329 | U16 | 1 | |
| Counter unit index | 3330 | U16 | 1 | |
| Counter limit | 3331 | U16 | 1 | |
| Counter setpoint mode | 3333 | U16 | 1 | |
| Counter new setpoint | 3334 | U16 | 1 | |
| Counter mode | 3336 | U16 | 1 | |
| Reset counter enable | 3337 | U16 | 1 | |
| Identification number | 3628 | U16 | 1 | |
| Normal step c. resp. | 3653 | U16 | 1 | |
| Stable situation c. resp. | 3665 | U16 | 1 | |
| Open from zero c. resp. | 3666 | U16 | 1 | |
| Calibration mode | 3681 | U16 | 1 | |
| Monitor mode | 3682 | U16 | 1 | |
| Reset | 3688 | U16 | 1 | |
| Bridge potmeter | 3717 | U16 | 1 | |
| Modbus slave address | 4010 | U16 | 1 | |
| Polynomial constant A | 33064 | F32BE | 1 | |
| Polynomial constant B | 33072 | F32BE | 1 | |
| Polynomial constant C | 33080 | F32BE | 1 | |
| Polynomial constant D | 33088 | F32BE | 1 | |
| Sensor differentiator dn | 33112 | F32BE | 1 | |
| Sensor differentiator up | 33120 | F32BE | 1 | |
| Capacity | 33128 | F32BE | 1 | |
| Fluid name | 33160 | U16 | 1 | |
| Capacity unit | 33272 | U16 | 1 | |
| Fmeasure | 41216 | F32BE | 1 | |
| FSetpoint | 41240 | F32BE | 1 | |
| Temperature | 41272 | F32BE | 1 | |
| Capacity 0% | 41392 | F32BE | 1 | |
| Counter value | 59400 | F32BE | 1 | |
| Counter limit | 59416 | F32BE | 1 | |
| Counter unit | 59448 | U16 | 1 | |
| Device type | 61704 | U16 | 1 | |
| BHTModel number | 61712 | U16 | 1 | |
| Serial number | 61720 | U16 | 1 | |
| Customer model | 61728 | U16 | 1 | |
| Firmware version | 61736 | U16 | 1 | |
| User tag | 61744 | U16 | 1 | |
| Valve output | 61960 | U32BE | 1 | |
| PID-Kp | 62120 | F32BE | 1 | |
| PID-Ti | 62128 | F32BE | 1 | |
| PID-Td | 62136 | F32BE | 1 | |
| IO Switch Status | 62200 | I32BE | 1 | |
| Density actual | 62584 | F32BE | 1 | |
| Dynamic display factor | 62728 | F32BE | 1 | |
| Static display factor | 62736 | F32BE | 1 | |
| Exponential smoothing | 62752 | F32BE | 1 | |
| Modbus baud rate | 64840 | I32BE | 1 |
⚠ Not following the guidelines could result in personal injury and/or damage to the equipment. — Starkest reads only; we never write a control register.
| terminals | RJ45, M12, DB9 |
| A/B polarity | D0 Modbus (A/A'), D1 Modbus (B/B') |
| termination | No integrated termination. External 120 Ohm resistors recommended. |
| connector | RJ45 modular jack, M12 circular connector, DB9 female connector |
| shield/ground | Shielded cables required |
| wiring notes | Pin layout on RJ45 is vendor-specific and differs from Modbus standard. |
| max registers/read | 125 |
| response timeout | 100 ms |
| broadcast | supported |
| protocol notes | Maximum message size for Read Holding Registers is 100 bytes at 9600 baud, 200 bytes at 19200 baud, and 400 bytes at 38400 baud. |
| model register | 61704 |
| serial register | 61720 |
| firmware register | 61736 |
| identification notes | Report Slave ID (FC17) returns a string containing ident number, version, and serial number. |
| FC 43 device ID | not supported |
| power | 15...24 Vdc |
| certifications | CE |
| doc revision | 9.17.035AF |
⚠ disputed: model_register @ 61704 — disputed by Bronkhorst Modbus Slave Interface Manual (9.17.035) which maps BHTModel number to 61712 (0xF110) and Device Type to 61704 (0xF108)
⚠ disputed: firmware_register @ 61736 — disputed by Bronkhorst Modbus Slave Interface Manual (9.17.035) which maps Firmware Version to 61737 (0xF128) or 61736 (0xF128 depending on 0-based vs 1-based indexing, but 61736 is 0-based PDU address 0xF128)
Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.
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