BONFIGLIOLI Active Cube User Manual

9.2 32-bit access
9.2.1 Function code 3, read 32-bit parameter
Example 1:
Reading of parameter
Fixed Frequency 2 481 (0x01E1) in dataset 1 of frequency inverter with ad-
dress 1.
Request: Master  frequency inverter
Field:
MBAP
Unit
ID
Func.
DSet/
ParNo.
No. regis-
ters
Transaction ID
Protocol ID
Length
nn
nn
nn
nn
00
06
01
03
11
E1
00
02
Response: Frequency inverter  Master
Field:
MBAP
Addi.
Func.
No.
Bytes
Par.value
Transaction ID
Protocol ID
Length
Hex
nn
nn
nn
nn
00
07
01
03
04
00
00
03
E8
The sent hexadecimal value is 0x03E8 = Decimal 1000. Parameter
Fixed Frequency 2 481 has two
decimal places. Thus, the frequency is 10.00 Hz.
Example 2:
Reading of parameters
Fixed Frequency 2 481 (0x01E1) in dataset 0 of frequency inverter with ad-
dress set to 1 and number of registers set to 1 (non-permissible value).
Request: Master  frequency inverter
Field:
MBAP
Unit
ID
Func.
DSet/
Par.No.
No. regis-
ters
Transaction ID
Protocol ID
Length
nn
nn
nn
nn
00
06
01
03
01
E0
00
01
Error response: Frequency inverter  Master
Field:
MBAP
Unit
ID
Func.
Excep.
Transaction ID
Protocol ID
Length
Hex
nn
nn
nn
nn
00
03
01
83
04
The sent exception condition code is the hexadecimal value 0x04 = ERROR SLAVE DEVICE.
10/13
ACU Modbus/TCP 47

BONFIGLIOLI Active Cube Specifications

General

Brand	BONFIGLIOLI
Model	Active Cube
Category	Inverter
Language	English