E6581741

8.6. "16 (0x10) Write Multiple Registers" function

This Modbus request is used to write a number (No. of Registers) of adjacent words starting at a given address (Starting Address). The values to be written are supplied one after another (First Register Data -> Last Register Data).

Request format:

Byte

Meaning

0

Function Code = 10h

1

Starting Address Hi

2

Starting Address Lo

3

No. of Registers Hi (0)

4

No. of Registers Lo (1 - 100)

5

Byte Count (B = 2 × No. of Registers)

6

First Register Data (Hi)

7

First Register Data (Lo)

・・・

・・・・・・・・・・・・・・・・

B+4

Last Register Data (Hi)

B+5

Last Register Data (Lo)

Response format:

Byte

Meaning

0Function Code = 10h

1Starting Address Hi

2Starting Address Lo

3No. of Registers Hi (0)

4No. of Registers Lo (1 - 100)

Exception response format:

Byte Meaning

0Function Code = 90h Exception Code =

01(Illegal Function)

102 (Illegal Data Address)

03(Illegal Data Value)

04(Slave Device Failure)

Notes

As for the EEPROM parameter, first the data is written to RAM, after that the data is written to EEPROM. Some EEPROM parameters cannot be changed during the inverter is running.

When write to EEPROM parameter that will change inverter status from stop to run, the inverter must be in the state that it cannot run.

For example: To write to EEPROM, the inverter must open ST-CC. (display shows "OFF") If not, the data is only written to RAM.

The Life of EEPROM is approximately 100,000 times. Avoid writing a command more than 100,000 times to the same parameter of the Inverter.

Please access only parameters in document.

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Toshiba IPE002Z instruction manual 0x10 Write Multiple Registers function