342
Serial Communications
Section 6-1
Note
A setting can be made to delay the transmission of data after the execution of
TXD(236).
Refer to the
SYSMAC CP Series CP1H CPU Unit Programming Manual
(W451) for more details on TXD(236) and RXD(235).
6-1-3
Modbus-RTU Easy Master Function
Overview
If an RS-232C or RS-422A/485 Option Board is used, the CP1H CPU Unit
can function as a Modbus-RTU Master to send Modbus-RTU commands by
manipulating software switches. This enables easily controlling Modbus-com-
pliant slaves, such as Inverters, through serial communications.
The following OMRON Inverters support Modbus-RTU slave operation:
3G3JV, 3G3MV, and 3G3RV.
The communications mode in the PLC Setup must be set to the Gateway
Mode to enable this functionality.
Time
Execution of TXD(236)
Delay time
Transmission
Содержание CP1H CPU UNITS - PROGRAMMING 05-2007
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Страница 595: ...561 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
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Страница 642: ...608 Standard Models Appendix A...
Страница 643: ...609 Appendix B Dimensions Diagrams X XA and Y CPU Units 90 100 110 140 150 8 85 Four 4 5 dia holes...
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Страница 745: ...711 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 746: ...712 Connections to Serial Communications Option Boards Appendix F...
Страница 776: ...742 PLC Setup Appendix G...
Страница 778: ...744 Specifications for External Power Supply Expansion Appendix H...
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