Hitachi X200-002SFE/NFU Instruction Manuals page 235

B−8
Message Configuration: Response
Transmission time required:
• A time period between reception of a query from the master and transmission of a
• The master must provide a time period of the silent interval (3.5 characters long or
Normal response:
• When receiving a query that contains a function code of Loopback (08h), the inverter
• When receiving a query that contains a function code of Write in Register or Coil
• When receiving a query that contains a function code of Read Register or Coil (01h or
Response when an error occurs:
• When finding any error in a query (except for a transmission error), the inverter
• You can check the error by the function code in the response. The function code of the
• The content of the error is known from the exception code.
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response from the inverter is the sum of the silent interval (3.5 characters long) +
C078 (transmission latency time).
longer) before sending another query to an inverter after receiving a response from
the inverter.
returns a response of the same content of the query.
(05h, 06h, 0Fh, or 10h), the inverter directly returns the query as a response.
03h), the inverter returns, as a response, the read data together with the same slave
address and function code as those of the query.
returns an exception response without executing anything.
exception response is the sum of the function code of the query and 80h.
Field Configuration
Slave address
Function code
Exception code
CRC-16
Exception
Code
0 1 h The specified function is not supported.
0 2 h The specified function 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.
The 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
2 2 h
• 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)
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