Message Configuration Response | Hitachi CP-X200 instruction

B－8

Appendix B

Message Configuration: Response

Transmission time required:

ξA time period between reception of a query from the master and transmission of a response from the inverter is the sum of the silent interval (3.5 characters long) + C078 (transmission latency time).

ξThe master must provide a time period of the silent interval (3.5 characters long or longer) before sending another query to an inverter after receiving a response from the inverter.

Normal response:

ξWhen receiving a query that contains a function code of Loopback (08h), the inverter returns a response of the same content of the query.

ξWhen receiving a query that contains a function code of Write in Register or Coil (05h, 06h, 0Fh, or 10h), the inverter directly returns the query as a response.

ξWhen receiving a query that contains a function code of Read Register or Coil (01h or 03h), the inverter returns, as a response, the read data together with the same slave address and function code as those of the query.

Response when an error occurs:

ξWhen finding any error in a query (except for a transmission error), the inverter returns an exception response without executing anything.

ξYou can check the error by the function code in the response. The function code of the exception response is the sum of the function code of the query and 80h.

ξThe content of the error is known from the exception code.

Field Configuration

Slave address

Function code

Exception code

CRC-16

	Exception	Description
	Code	Description
	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.
		ξ Function to change the content of a register that cannot be changed while
	2 2 h	the inverter is in service
	2 2 h	ξ Function to submit an ENTER command during running (UV)
		ξ Function to submit an ENTER command during running (UV)
		ξ Function to write in a register during tripping (UV)
		ξ Function to write in a read-only register (or coil)

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Hitachi CP-X200 instruction manual Message Configuration Response

Models: CP-X200

Message Configuration: Response

Code

CP-X200 specifications