GT200 series general purpose inverter instruction manual
register address in the following. If operation request fails, abnormal response is shown in the
above.
When storing multiple register parameters continuously, the inverter starts storing from
the register at the lowest address, till the one at the highest address, and the storage may
success completely or return from the address failing first.
Function code 0x41 is used to modify individual inverter function code or control
parameter, and store it to the non-volatile storage unit. Its command format is similar to 0x06,
and the only difference lies in that parameters operated by command 0x06 will not be saved
after power off, while parameters operated by 0x41 will be saved after power off. Some
control parameters in the inverter cannot be saved into the non-volatile storage unit, as for
these parameters, function codes 0x41 and 0x06 have the same operation effects, and these
parameters will be introduced in the following.
The management of inverter function codes includes reading upper limit and lower limit
of parameters, reading parameter characteristics, reading function code menu’s max. group
index, reading the next function code group number and the previous function code group
number, reading the current display state parameter index as well as displaying the next state
parameter etc. Parameter characteristics include information such as parameter readability and
writability, parameter unit as well as scaling relation etc. These commands are used to
remotely modify inverter function code parameters. Application layer protocol data units
managed by function codes are as follows:
Request format is as follows:
Application Layer
Protocol Data Unit
Data Length(Bytes)
Value or Range
Function Code
1
0x42
Sub Function Code
2
0x0000
～
0x0007
Data
2
Detailed range should be decided
according to the inverter’s type.
Response format is as follows:
Application Layer
ProtocolData Unit
Data Length (Bytes)
Value or Range
Function Code
1
0x42
Sub Function Code
2
0x0000
～
0x0007
Data
2
0x0000
～
0xFFFF
If operation request fails, response should be error code and abnormal code. If operation
fails, carry out abnormal response, and see the above description for any abnormal response
code.
Sub functions managed and supported by function codes are listed in the following:
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