Hanna Instruments HI520, Instruction Manual

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Holding Registers (4xxxx Addresses) 32
Address Parameter Size Note
30425 CH2 Probe Constant11 Type uint8_t
0 = Incremental Type
1 = Unit Type
2 = Check Glass Impedance
3 = Check Reference Impedance
4 = Temperature Compensation Type
5 = Incremental Temperature Type
6 = Incremental Temperature Offset Type
7 = Incremental Calibration Timeout
8 = Incremental Resolution Type
9 = Incremental buffer Type
10 = Meter Mode
11 = Parameter source
30426 CH2 Probe Constant11 Name 24 bytes bytes 1‑0
30427 bytes 3‑2
30428
bytes 5‑4
30429
bytes 7‑6
30430
bytes 9‑8
30431
bytes 11‑10
30432
bytes 13‑12
30433
bytes 15‑14
30434
bytes 17‑16
30435
bytes 19‑18
30436
bytes 21‑20
30437
bytes 23‑22
30438
Controller Status uint32_t Bytes 1‑0
30439
Bytes 3‑2
30440
Alarm Events uint64_t Bytes 1‑0
30441
Bytes 3‑2
30442 Bytes 5‑4
30443 Bytes 7‑6
30444
Error Events uint64_t Bytes 1‑0
30445
Bytes 3‑2
30446
Bytes 5‑4
30447
Bytes 7‑6
5.6. HOLDING REGISTERS (4XXXX ADDRESSES)
The following functions support the holding registers:
Decimal Hex Name
3 0x03 Read holding register
6 0x06 Write single holding register
16 0x10 Write multiple holding registers