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4-73
4-2 Function Mode
4
Functions
<Writing into the holding register [06h]>
Writes data into the specified holding register.
(Example)
Write "50 Hz" into the Inverter with slave address "8" as multi-step speed reference 0 (A020).
The data resolution of the holding register "1029h" of multi-step speed reference 0 (A020) is 0.1 Hz.
To set 50 Hz, set the change data to "500 (01F4h)".
*1. There is no response for broadcasting.
*2. Note that the holding register start address is "1028h", which is smaller by 1 than the register
number "1029h".
Refer to "<Exception Response>" (4-75) if writing into the holding register cannot be performed nor-
mally.
<Loopback Test [08h]>
Used to check the communications between master and slave. A random value can be used for test
data.
(Example)
Loopback test to the Inverter with the slave address "1"
* Broadcasting cannot be performed.
The test sub code corresponds only with the query data echo (00h, 00h), not any other command.
Query
Response
No.
Field name
Example
(Hex)
No.
Field name
Example
(Hex)
1
Slave address
*1
08
1
Slave address
08
2
Function code
06
2
Function code
06
3
Register address
*2
(MSB)
10
3
Register address
*2
(MSB)
10
4
Register address
*2
(LSB)
28
4
Register address
*2
(LSB)
28
5
Change data (MSB)
01
5
Change data (MSB)
01
6
Change data (LSB)
F4
6
Change data (LSB)
F4
7
CRC-16 (MSB)
0D
7
CRC-16 (MSB)
0D
8
CRC-16 (LSB)
8C
8
CRC-16 (LSB)
8C
Query
Response
No.
Field name
Example
(HEX)
No.
Field name
Example
(HEX)
1
Slave address
*
01
1
Slave address
01
2
Function code
08
2
Function code
08
3
Test sub code (MSB)
00
3
Test sub code (MSB)
00
4
Test sub code (LSB)
00
4
Test sub code (LSB)
00
5
Data (MSB)
Random
5
Data
Random
6
Data (LSB)
Random
6
Data
Random
7
CRC-16 (MSB)
CRC
7
CRC-16 (MSB)
CRC
8
CRC-16 (LSB)
CRC
8
CRC-16 (LSB)
CRC
Summary of Contents for JX-A4004
Page 2: ......
Page 16: ...14 About This Manual ...
Page 19: ...Chapter 1 Overview 1 1 Functions 1 2 1 2 Appearance and Names of Parts 1 4 ...
Page 24: ......
Page 25: ...Chapter 2 Design 2 1 Installation 2 2 2 2 Wiring 2 7 ...
Page 79: ...Chapter 4 Functions 4 1 Monitor Mode 4 2 4 2 Function Mode 4 6 ...
Page 174: ...5 8 5 2 Troubleshooting 5 Maintenance Operations ...
Page 175: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 2 6 2 Storage 6 8 ...
Page 199: ...Appendix Appendix 1Parameter ListApp 2 Appendix 2Product Life CurveApp 18 ...
Page 217: ...INDEX ...
Page 220: ......