4-159
4-4 Communication Function
4
Func
tions
Below is each frame format (command).
Message Configuration: Query
<Slave Address>
• Pre-set numbers ranging from 1 to 32 in each Inverter (slave). (Only the Inverter having the same
slave address as the query takes in the corresponding query.)
• Broadcasting can be performed by setting the slave address to "0".
• Data call or loop-back cannot be performed while broadcasting.
<Data>
• Sends the function command.
• The 3G3RX corresponds with the following data formats used in the ModBus.
<Function Code>
• Specifies the function for the Inverter to perform.
• Below are the function codes supported by the 3G3RX.
Function Code
<Error Check>
• CRC (Cyclic Redundancy Check) is used for the ModBus-RTU error check.
• The CRC code is a 16-bit data generated for the block of random length data in the 8-bit unit.
• To prepare the CRC code, use a generation polynomial of CRC-16 (X
16
+ X
15
+ X
2
+ 1).
Header (Silent interval)
Slave address
Function code
Data
Error check
Trailer (Silent interval)
Data name
Description
Coil
2-value data (1-bit long) that can be referred to or changed
Holding register
16-bit long data that can be referred to or changed
Function code
Function
Maximum number of
data bytes in 1 message
Maximum data number in
1 message
01h
Reading coil status
4
32 coils (in bits)
03h
Reading holding register
content
8
4 registers (in bytes)
05h
Writing into the coil
2
1 coil (in bits)
06h
Writing into the holding
register
2
1 register (in bytes)
08h
Loop-back test
⎯
0Fh
Writing into multiple coils
4
32 coils (in bits)
10h
Writing into multiple registers
8
4 registers (in bytes)
Содержание 3G3RX Series
Страница 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Страница 2: ......
Страница 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Страница 22: ......
Страница 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
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Страница 108: ......
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Страница 325: ...Chapter 5 Maintenance Operations 5 1 Protective Functions and Troubleshooting 5 1 5 2 Warning Function 5 10 ...
Страница 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
Страница 348: ......
Страница 349: ...Chapter 7 Specifications 7 1 Standard Specification List 7 1 7 2 Dimensional Drawing 7 6 7 3 Options 7 14 ...
Страница 358: ...7 9 7 2 Dimensional Drawing 7 Specifications 3G3RX A2300 A4300 368 79 265 310 10 510 540 2 φ10 195 45 80 265 ...
Страница 360: ...7 11 7 2 Dimensional Drawing 7 Specifications 3G3RX A2550 380 670 700 2 φ12 12 380 480 250 352 79 ...
Страница 361: ...7 12 7 2 Dimensional Drawing 7 Specifications 3G3RX A4750 A4900 2 φ12 2 12 300 390 268 700 79 670 357 ...
Страница 362: ...7 13 7 2 Dimensional Drawing 7 Specifications 3G3RX A411K A413K 2 φ12 2 12 380 480 270 740 79 710 480 ...
Страница 369: ...7 20 7 3 Options 7 Specifications 3G3AX RBC4001 3G3AX RBC6001 100 150 280 300 5 70 100 70 150 390 410 5 ...
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Страница 393: ...Appendix Appendix 1 Parameter List App 1 Appendix 2 Product Life Curve App 41 Appendix 3 Life Alarm Output App 42 ...
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Страница 437: ...Index ...
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