Best E5 Series User Manual page 204

Chapter 7 Modbus Maintenance
Application layer
protocol data unit
Parameter
Error code
Check
Error codes supported by Modbus protocol are listed in the table below:
Error codes
0x1
0x2
0x3
0x4
0x5
0x6
0x18
0x20
0x21
0x22
Drive control parameters are used for start, stop and running frequency setting. By detecting
drive status parameters, running status and running mode can be obtained. Drive control
parameters and status parameters are shown in appendix table 22.
Register address
0x6200
0x6201
0x6202
0x6203
0x6204
Table 7-20
Data length (number of bytes)
1
1
LRC or CRC
Table 7-21
Illegal parameter
Illegal register address
Data error, i.e. data are out of upper limit or lower limit
Slave operation failed, including errors caused by invalid data
although there are in the range
Command is valid and being processed, mainly used for storing data
to non-volatile storage
Slave is busy, please try again later; mainly used for storing data into
non-volatile storage
Message frame error: including message length error and check error
Parameter is not changeable
Parameter is not changeable during the running
Parameter is under password protection
Table 7-22
Parameter name
Control command word
Master frequency command setting
Auxiliary frequency command setting
Master frequency command
Auxiliary frequency command
Meanings of error codes
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E5 User Manual
Range
0x80 + parameter
Save at power
loss
No
Yes
Yes
No
No