7 Modbus RTU
7.4 Operating mode Modbus RTU
126
DE1 variable speed starter
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7.4.4 Explanation of function code
7.4.4.1 Function code 03
hex
: Reading of holding registers
This function reads the content of a number of consecutive holding registers
(specified register addresses).
Example
Reading the status and fault word (ID 6) of the DE1 variable speed starter
with slave address 1.
Master request: 01 03 0005 0001 940B
hex
Slave response: 01 03 02 0000 B844
hex
Register [hex]
Name
01
Slave address
03
Function code (reading of holding registers)
0005
5
dez
: The ID is 6, since the master controller has an offset of +1.
0001
Total number of requested registers
940B
CRC
Register [hex]
Name
01
Slave address
03
Function code (reading of holding registers)
02
Number of consecutive data bytes (1 register = 2 byte)
0000
Content (2 byte) for register 6: 0
B844
CRC
Содержание PowerXL DE1 series
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Страница 36: ...2 Engineering 2 5 Motor Selection 32 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 68: ...3 Installation 3 6 Block diagrams 64 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 132: ...7 Modbus RTU 7 4 Operating mode Modbus RTU 128 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 146: ...8 Technical Data 8 4 Dimensions 142 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 172: ...10 Fault messages 10 3 Fault list 168 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
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