Table of Contents
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4.3.8 Write multiple registers (FC: 16) ....................................................................................................... 4-14
4.3.9 Read file record (FC: 20) (SC: 06) .................................................................................................... 4-15
4.3.10 Write file record (FC: 21) (SC: 06) .................................................................................................. 4-17
4.3.11 Mask write register (FC: 22) ........................................................................................................... 4-19
4.3.12 Read/Write multiple registers (FC: 23) ........................................................................................... 4-20
5.1 Function List .............................................................................................................................................. 5- 1
5.2 Master Function ........................................................................................................................................ 5- 3
5.2.1 Automatic communication function .................................................................................................... 5- 3
5.2.2 Dedicated instructions ........................................................................................................................ 5- 9
5.3 Slave Function.......................................................................................................................................... 5-10
5.3.1 Automatic response function ............................................................................................................ 5-10
5.3.2 MODBUS device assignment function ............................................................................................. 5-11
5.4 KeepAlive Function .................................................................................................................................. 5-12
5.5 Router Relay Function ............................................................................................................................. 5-14
5.6 GX Developer Connection Function ........................................................................................................ 5-15
6 PRE-OPERATIONAL PROCEDURES AND SETTING
6.1 Handling Precautions ................................................................................................................................ 6- 1
6.2 Pre-Operational Procedures and Setting ................................................................................................. 6- 2
6.3 Part Names ............................................................................................................................................... 6- 4
6.4 Connection to Ethernet ............................................................................................................................. 6- 6
6.5 Unit Tests .................................................................................................................................................. 6- 8
6.5.1 Hardware test ..................................................................................................................................... 6- 8
6.5.2 Self-loopback test ............................................................................................................................... 6- 9
6.6 Intelligent Function Module Switch Setting ............................................................................................. 6-10
parameter starting method setting .................................................................................................... 6-16
7.1 Parameter Settings and Setting Procedure ............................................................................................. 7- 1
7.2 Basic Parameters ...................................................................................................................................... 7- 6
7.2.1 Basic parameters details .................................................................................................................... 7- 6
7.2.2 TCP/UDP/IP setting ........................................................................................................................... 7- 8
7.2.3 GX Developer connection information setting .................................................................................. 7-16
7.2.4 MODBUS/TCP setting ...................................................................................................................... 7-17
7.3 Automatic Communication Parameters .................................................................................................. 7-19
7.3.1 Automatic communication parameters details ................................................................................. 7-19
7.4 MODBUS Device Assignment Parameters ............................................................................................. 7-23
7.4.1 MODBUS device sizes ...................................................................................................................... 7-25
7.4.2 MODBUS device assignment parameters details ............................................................................ 7-26
7.4.3 Default assignment parameters ........................................................................................................ 7-29
7.4.4 MODBUS extended file register assignment ................................................................................... 7-31
7.4.5 QJ71MT91 buffer memory assignment ............................................................................................ 7-32
A - 9
5- 1 to 5-15
6- 1 to 6-20
7- 1 to 7-33
A - 9
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