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MART
AXIS P
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ITE
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M
ANUAL
FT9Y-B1378
11-15
11: M
ODBUS
C
OMMUNICATION
Function Code 06 (Preset Single Register)
Function code 06 changes word device data of D (data register).
Communication Frame
Request from Modbus Master
ACK Reply from Modbus Slave
NAK Reply from Modbus Slave
Communication Example
RTU Mode
Slave No.
Function Code
Address
New Data
xxh
06h
xxxxh
xxxxh
Slave No.
Function Code
Address
Acknowledge
Data
xxh
06h
xxxxh
xxxxh
Slave No.
Function Code
Error Code
xxh
86h
xxh
Purpose
Write 8000 to data register D1708.
D1708
(1708 – 0) + 400001 = 401709
Modbus address: 401709
Extract lower 5 digits
1709
1709 – 1 = 1708 = 6ACh
Communication frame address: 06ACh
Condition
Slave No. 8
Request from Modbus Master
08 06 06AC 1F40 (CRC)
ACK Reply from Modbus Slave
08 06 06AC 1F40 (CRC)
NAK Reply from Modbus Slave
08 86 xx (CRC)
Summary of Contents for SmartAXIS FT9Z-1A01
Page 1: ...FT9Y B1378 7...
Page 10: ...TABLE OF CONTENTS Preface 9 SMARTAXIS PRO LITE USER S MANUAL FT9Y B1378...
Page 212: ...7 DEVICE ADDRESSES 7 16 SMARTAXIS PRO LITE USER S MANUAL FT9Y B1378...
Page 230: ...8 INSTRUCTIONS FUNCTION BLOCKS REFERENCE 8 18 SMARTAXIS PRO LITE USER S MANUAL FT9Y B1378...
Page 344: ...13 SCRIPTS 13 36 SMARTAXIS PRO LITE USER S MANUAL FT9Y B1378...
Page 386: ...APPENDIX Appendix 16 SMARTAXIS PRO LITE USER S MANUAL FT9Y B1378 Japanese Font JIS X0201...
Page 393: ......