Omron 3G3MX2 - Writing into the Holding Register [06 H]

6-12
6-5 Explanation of Each Parameter No.
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-A@@@@)
6
Communication Function
Writing Into the Holding Register [06h]
Writes data into the specified holding register.
Example) Write "50.00 Hz" into Output Frequency Setting (F001 = A020) of the Inverter
whose slave address is "1".
Since the holding register for output frequency setting has a data resolution of 0.01 Hz, the
data to be written should be "5000 (1388h)" when setting 50.00 Hz.
(Register address) = (Register number) − 1
1388h → 5000d → 50.00 Hz
Query:
Response:
*1. There is no response for broadcasting.
*2. Although the Frequency Reference (F001) normally uses two registers (0001h and 0002h), 50.00 Hz
(5000) is covered by the range of the LSB register, therefore, the data is written to only one register in
the above sample. When setting a frequency exceeding 655.35 Hz, write it into two registers
simultaneously using a multiple holding register write command (10h).
*3. Note that the holding register start address in F001 (LOW) is "0001h", which is smaller by 1 than the
register number "0002h". The register number less 1 corresponds to the register address.
Note that if any parameter other than F001 is rewritten while the data is displayed, the
displayed data does not change in real time. Return to the parameter display and show the
data gain, and the value reflecting the change will be displayed.
Refer to "Exceptional Response" on page 6-18 if the writing into the holding register cannot be
performed normally.
No. Field name
Example
(Hex)
1 Slave address
*1
01
2 Parameter No. 06
3 Register address (MSB)
*2,*3
00
4 Register address (LSB)
*2,*3
01
5 Written data (MSB) 13
6 Written data (LSB) 88
7 CRC-16 (MSB) D5
8 CRC-16 (LSB) 5C
No. Field name
Example
(Hex)
1 Slave address 01
2 Parameter No. 06
3 Register address (MSB)
*2
00
4 Register address (LSB)
*2
01
5 Written data (MSB) 13
6 Written data (LSB) 88
7 CRC-16 (MSB) D5
8 CRC-16 (LSB) 5C