BONFIGLIOLI Active Cube User Manual

Register value
This field is used for saving the 32-bit parameter value.
Parameter values with decimal places are transferred without decimal point. Depending
on the number of decimal places, the values are multiplied by 10, 100 or 1000.
Example:
A frequency value of 123.45 Hz is to be transferred. The actually transferred numerical value is 12345,
i.e. 0x3039 in the hexadecimal system.
Exception condition code
The following exception condition codes are possible:
2 INVALID DATA ADDRESS • Parameter unknown
3 INVALID DATA VALUE • Number of bytes in data field too small or too high
4 SLAVE DEVICE ERROR • Error when writing parameters
For a description of the exception condition codes, refer to Chapter 7.2.9 “Exception condition codes”.
For an example of a Modbus RTU telegram, refer to Chapter 9.2.2.
7.2.5 Function code 100 (=0x64), read 32-bit parameter
Request:
MBAP header
Address
1 byte
1 – 0xF7 (=247)
Function code
1 byte
0x64
Start address (dataset / para. no.)
2 bytes
0x0000 – 0x963F
Response:
MBAP header
Address
1 byte
1 – 0xF7 (=247)
Function code
1 byte
0x64
Register value (parameter value)
4 bytes
0 – 0x FFFF FFFF
Exception condition response:
MBAP header
Address
1 byte
1 – 0xF7 (=247)
Error code
1 byte
0xE4
Exception condition code
1 byte
2, 3 or 4
Start address
This field is used for saving the parameter number and dataset number. The parameter number is in
the range between 0 and 1599 and is saved in the 12 least significant bits. The dataset number is in
the range between 0 and 9 and is saved in the 4 most significant bits.
Example:
Parameter 372 (hex. 0x174), dataset 2 (hex. 0x2) is saved as hex. 0x2174.
Start address
Data set
Parameter number
Bits
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
For the above example:
Hex.
0
0
1
0
0
0
0
1
0
1
1
1
0
1
0
0
Bin.
2
1
7
4
10/13
ACU Modbus/TCP 33

BONFIGLIOLI Active Cube Specifications

General

Brand	BONFIGLIOLI
Model	Active Cube
Category	Inverter
Language	English