You can write the data that you set to the number of holding registers set in function code 10 (hex). You must configure the number of the holding registers and each 8 higher bits and 8 lower bits in order in the command message for the write data. You can write to a maximum of 16 holding registers.

Table 1 shows example messages when you use the PLC to set Forward run in the drive of slave 1 with a 60.00 Hz frequency reference.

When you rewrite the parameter value with the write command through the H5-11 [Comm ENTER Command Mode] setting, you must use the Enter command to save and enable the contents of the changes. Refer to Enter Command for more information.

Table 1. Message Example When Writing to Multiple Holding Registers

Byte

Command Message

Setting Data

(Hex.)

Response Message (When Normal)

Setting Data

(Hex.)

Response Message (When There is a Fault)

Setting Data

(Hex.)

0

Slave address

01

Slave address

01

Slave address

01

1

Function code

10

Function code

10

Function code

90

2

Starting No.

Upper

00

Starting No.

Upper

00

Error code

02

3

Lower

01

Lower

01

CRC-16

Upper

CD

4

Data Quantity

Upper

00

Data Quantity

Upper

00

Lower

C1

5

Lower

02

Lower

02

-

6

Byte No.

04

CRC-16

Upper

10

-

7

First data

Data Quantity

Upper

00

Lower

08

-

8

Lower

01

-

-

9

Next data

Upper

17

-

-

10

Lower

70

-

-

11

CRC-16

Upper

6D

-

-

12

Lower

B7

-

-
Note:

The number of bytes set in the command message set the data quantity × 2 during the command message. The response message uses the same formula.