8.1.2 Function Code 6, Write 16-bit Parameter
Example 1:
Writing parameter
inverter with address 3.
The rated mechanical power is to be set to 1.5 kW.
Parameter
Therefore the value to be sent is 15 = 0x000F.
Request: Master
Field:
Hex
Response: Frequency Inverter
Field:
Hex
The response is an echo of the request message.
Example 2:
Writing out of range value 0 to parameter 376 (0x0178) in data set 2 to the fre-
quency inverter with address 3
Request: Master
Field:
Hex
Error Response: Frequency Inverter
Field:
Hex
The exception code sent is hexadecimal value 0x04 = SLAVE DEVICE FAILURE
05/08
05/08
Rated Mech. Power
Rated Mech. Power
376 has one decimal place.
Frequency Inverter
Addr
Func
DSet/Par-No.
03
06
41
Addr
Func
DSet/Par-No.
03
06
41
Frequency Inverter
Addr
Func
DSet/Par-No.
03
06
21
Addr
Func
Except.
03
86
04
Modbus Instruction manual
Modbus Instruction manual
376 (0x0178) in data set 4 to the frequency
Par-Value
78
00
0F
Master
Par-Value
78
00
0F
Par-Value
78
00
00
Master
CRC
E2
63
CRC
5C
09
CRC
5C
09
CRC
02
0D
39
39
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