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Function parameter register 40XXX of soft starter
40256-40274 are function registers, the corresponding address is 0X0100-0X0112, the high byte address is 01, the low
byte address is 0X00-0X12, and the corresponding function code F0-FL is consistent with the function code table 4.2. For
example, address 0X109 corresponds to function code F9 (start mode). These codes can be read and written. The
following examples give the description to its usage:
Example 1: Reading function code F5 (current limiting value)
Send code 02 03 0105 0001
Returns the value of the F5 function code read 020302015E means the current limit value is 350%
Example 2: Reading function code FA (Protection level)
Send code 02 03 01 0A 00 01
Return the value of the read FA function code 0203 02 00 03, and the read protection level is 3
Example 1: Rewrite the soft starter function code 05 (starting current) to 250%
The host sends the code 0206 01 05 00 FA, the soft start return code is 0206 01 05 00 FA; if it returns 0286
03 means unable to write, maybe the starter is running.
7.3 Abnormal response
Code
Name
Description
01
Illegal function
Function code cannot be executed, soft starter does not support
02
Illegal data address
The received data cannot be executed, and the address overflows
03
Illegal data value
The data received cannot be executed
1. The parameters are out of the limit
2. The parameters cannot be modified
3. When running, the parameters cannot be modified
7.3.1 01 Illegal function code 01
Inquiry message format of master station:
Slave-station
address
Function code
Starting address
High byte
starting address
Low byte
Number of registers
High volume
Number of
registers
Low volume
CRC Check
0x01
0x08
0x00
0x80
0x00
0x0D
This protocol does not use the 0x08 function code, so the slave station responds:
Slave-station address
Function code
Abnormal code
CRC check
0x01
0x88
0x01
7.3.2 Illegal function address 02
Inquiry message format of master station:
