Exception Response - Hitachi L200 Series Instruction Manual

Exception Response:

When sending a query (excluding a broadcasting query) to an inverter, the master always
requests a response from the inverter. Usually, the inverter returns a response according
to the query. However, when finding an error in the query, the inverter returns an excep-
tion response. The exception response consists of the fields shown below.
Field Configuration
Slave address
Function code
Exception code
CRC–16
The content of each field is explained below. The function code of the exception
response is the sum of the function code of the query and 80h. The exception code
indicates the factor of the exception response.
Function Code
Query Exception Response
0 1 h 8 1 h
0 3 h 8 3 h
0 5 h 8 5 h
0 6 h 8 6 h
0 F h 8 F h
1 0 h 9 0 h
Code
0 1 h The specified function is not supported.
0 2 h The specified address is not found.
0 3 h The format of the specified data is not acceptable.
2 1 h The data to be written in a holding register is outside the inverter
2 2 h These specified functions are not available to the inverter:
•
Function to change the content of a register that cannot be changed while the
inverter is in service
•
Function to submit an ENTER command during running (UV)
•
Function to write in a register during tripping (UV)
•
Function to write in a read-only register (or coil)
Exception Code
Description
B–17
L200 Inverter