Chapter 4 explanation of functions – Hitachi SJ700-2 User Manual

Page 190

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Chapter 4 Explanation of Functions

4 - 12

7

(viii) 07 command: This command writes data to a specified setting item in the inverter.
- Transmission frame
Frame format

STX Station

No.

Command

Parameter

Data

BCC

CR

Description

Data

size

Setting

STX

Control code (Start of TeXt)

1 byte

STX (0x02)

Station No.

Station number of control-target
inverter

2 bytes

01 to 32, or FF (broadcast to all stations)

Command

Command to be transmitted

2 bytes

07

Parameter

Data parameter number

4 bytes

See Note 14.

Data

Parameter data (decimal ASCII
code)

8 bytes

See Note 13.

BCC

Block check code

2 bytes

XOR of the items from "Station No." to "Data."
See Item (3) of this section.

CR

Control code (Carriage Return)

1 byte

CR (0x0D)

Note 14: Possible range of parameters is as follows.

F002-, A001-, b001-, C001-, H001-, P001- (F001 is written with 01 command.)



- Response frame
Positive response: See Item (2)-(i) of this section.
Negative response: See Item (2)-(ii) of this section.

(ix) 08 command: This command initializes specified settings in the inverter.
The setting items to be initialized follow the setting of the initialization mode (b084). When "b084" is "00",
the trip history data is cleared.
- Transmission frame
Frame format

STX Station

No.

Command BCC

CR

Description

Data

size

Setting

STX

Control code (Start of TeXt)

1 byte

STX (0x02)

Station No.

Station number of control-target
inverter

2 bytes

01 to 32, or FF (broadcast to all stations)

Command

Command to be transmitted

2 bytes

08

BCC

Block check code

2 bytes

XOR of the items from "Station No." to "Data."
See Item (3) of this section.

CR

Control code (Carriage Return)

1 byte

CR (0x0D)


- Response frame
Positive response: See Item (2)-(i) of this section.
Negative response: See Item (2)-(ii) of this section.

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