Hitachi SJ700-2 instruction manual Read the data received in the response as follows

Chapter 4 Explanation of Functions

(ii) Reading registers [03h]

This function reads a specified number of registers beginning at a specified register address.

(Example)

When reading the trip history data from the inverter at slave address "5":

Assume that the conditions of the past three trips are as follows:

		SJ700 command	d081 (factor of most recent trip)			d081 (inverter state at most recent trip)
		Register number		0012h		0013h
		Trip factor (upper digit)		Overvoltage (E07)		Decelerating (02)
Query					Response
		Field name		Sample setting		Field name	Sample setting
				(hexadecimal)			(hexadecimal)
	1	Slave address (*1)		05	1	Slave address	05
	2	Function code		03	2	Function code	03
	3	Starting register number		00	3	Number of data bytes (*3)	04
		(upper digit) (*2)			4	Starting register number	00
	4	Starting register number		11		(upper digit)
		(lower digit) (*2)			5	Starting register number	07
	5	Number of registers (upper		00		(lower digit)
		digit)			6	Starting register number + 1	00
	6	Number of registers (lower digit)		02	7	(upper digit)
	7	CRC-16 code (upper digit)		95		Starting register number + 1	02
	8	CRC-16 code (lower digit)		8A		(lower digit)

		8	CRC-16 code (upper digit)	36
*1	This query cannot be broadcasted.
*2	Note that the starting coil number is 1 less than the	9	CRC-16 code (lower digit)	37
	actual coil number of the coil to be read first.	*3 The data equivalent to the specified		number of data
		bytes is transferred. In this example, 4 bytes are

transferred because the data on two registers is returned in the response.

Read the data received in the response as follows:

Response buffer	4	5
Starting register number	+0 (upper	+0 (lower
	digit)	digit)
Response data	00h	07h
Trip condition	Trip due to	overvoltage

6	7
+1 (upper	+1 (lower
digit)	digit)
00h	02h

Decelerating

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

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