Hitachi SJ700-2 Slave address Function code Exception code CRC-16 code, Exception codes

Chapter 4 Explanation of Functions

(vii) Writing data to multiple registers [10h]

This function writes data to sequential registers. (Example)

When setting "3,000 Hz" as the Acceleration (1) time (F002) in the inverter at slave address "1":

Since register "1103h" and "1104h" to store the Acceleration (1) time (F002) have a data resolution of 0.01 seconds, specify "300000" (493E0h) as the updating data to set "3,000 seconds".

Query			Response
	Field name	Sample setting		Field name	Sample setting
		(hexadecimal)	1		(hexadecimal)
1	Slave address (*1)	01		Slave address (*1)	01
2	Function code	10	2	Function code	10
3	Starting register address	11	3	Starting register address (upper	11
	(upper digit) (*2)		4	digit) (*2)
4	Starting register address	02		Starting register address (lower	02
	(lower digit) (*2)		5	digit) (*2)
5	Number of registers (upper	00		Number of registers (upper	00
	digit)		6	digit)
6	Number of registers (lower	02		Number of registers (lower digit)	02
	digit)		7	CRC-16 code (upper digit)	E5
7	Number of data bytes (*3)	04	8	CRC-16 code (lower digit)	34
8	Updating data 1 (upper digit)	00
9	Updating data 1 (lower digit)	04
10	Updating data 2(upper digit)	93
11	Updating data 2(lower digit)	E0
12	CRC-16 code (upper digit)	9E
13	CRC-16 code (lower digit)	9F
*1	If this query is broadcasted, no inverter will return any response.
*2	Note that the starting register address is 1 less than the actual
*3	address of the register to which the data is to be written first.
	As the number of bytes, do not specify the number of registers but
	the number of bytes to be actually updated.

If the function to write data to multiple registers cannot be executed normally, the inverter will return an exception response. For details, see Item (viii), "Exception response."

(viii) Exception response

The master system requests the inverter (slave) to return a response upon reception of a query other than broadcasted queries. The inverter must return the response that matches the query it has received. However, if an error is found in a query, the inverter will return an exception response.

The exception response consists of the following fields:

Field configuration

Slave address

Function code

Exception code

CRC-16 code

Details of the field configuration are described below. The exception response in reply to a query includes a function code that is the sum of "80h" and the function code specified by the query. The exception code in the exception response indicates the content of the error.

Function codes			Exception codes
	Query	Exception response		Code	Description
	01h	81h		01h	An unsupported function is specified.
	03h	83h		02h	The specified address is not found.
	05h	85h		03h	The specified data has an unacceptable format.
	06h	86h		21h	The data to be written to a register exceeds the range of inverter
					specifications.
	0Fh	8Fh
					The inverter restricts the execution of the specified function:
	10h	90h			- Rewriting a register that cannot be rewritten during the operation
				22h	- Issuing an Enter command during the operation (in undervoltage
					status)
					- Writing to a register during tripping (because of undervoltage)
					- Writing to a read-only register (coil)

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