Function Code 100, Read 32-Bit Parameter - BONFIGLIOLI Vectron ACTIVE Manual

8.2.3 Function Code 100, Read 32-bit Parameter

Example 1:
Reading parameter
with address 1
Request: Master
Field:
ASC
Hex
Response: Frequency Inverter
Field:
ASC
Hex
The hexadecimal value sent is 0x000003E8 = 1000.
Parameter
Therefore, fixed frequency 2 = 10.00 Hz.
Example 2:
Reading unknown parameter 1600 (0x0640) in data set 2 from the frequency in-
verter with address 1
Request: Master
Field:
ASC
Hex
Error Response: Frequency Inverter
Field:
ASC
Hex
The exception code sent is hexadecimal value 0x04 = SLAVE DEVICE FAILURE.
05/08
05/08
Fixed Frequency 2
Frequency Inverter
SoF Adr Fct.Code
: 0 1 6 4
3A 30 31 36 34
SoF Adr Fct.Code
: 0 1 6 4
3A 30 31 36 34
Fixed Frequency 2
481 has 2 decimal places.
Frequency Inverter
SoF Adr Fct.Code
: 0 1 6 4
3A 30 31 36 34
SoF Adr Fct.Code
: 0 1 E 4
3A 30 31 45 34 30
Modbus Instruction manual
Modbus Instruction manual
481 in data set 0 from the frequency inverter
DSet/Par-No. LRC
0 1 E 1 B
30 31 45 31 42
Master
Para-Value
0 0 0 0 0
30 30 30 30 30 33
DSet/Par-No. LRC
2 6 4 0 3
32 36 34 30 33
Master
Excep.
LRC EoF
Code
0 2 1 9 CR
34 31 37 0D
EoF
9 CR LF
39 0D 0A
LRC
3 E 8 B 0 CR
45 38 42 30 0D
EoF
5 CR LF
35 0D 0A
LF
0A
EoF
LF
0A
45
45