Changing Parameters (Sequence 2) - HMS A8NDPV1 Instruction Manual

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3.9.2

Changing parameters (Sequence 2)

Creating the request
The idea of executing a change (write) of a PNU is the same as reading one. The only difference
is the change of the data request / response.
The format of the write request is as follows:
Byte no.
0
1
2
3
4
5
6-7
8-9
10
11
12-13
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Description
Request ID
Request reference
No. of parameters
DO-ID
No. of elements
Attribute value
Parameter number
Subindex (irrelevant)
No. of values
Format
Set value
Value
0x02
0x01-0xFF
0x01
0x01
0x00
0x10 (value attribute)
Byte swapped PNU
0x00
0x01
0x06 (UINTEGER16 for all inverter parameters)
See data format type table
Byte swapped set value
59