Chapter 6 Serial I/O, Snp & Rtu Protocols - GE PACSystems RX7i Reference Manual
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Also See for PACSystems RX7i:
- User manual (276 pages) ,
- Cpu programmer's reference manual (469 pages)
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Chapter 6 Serial I/O, SNP & RTU Protocols
This chapter discusses the following topics related to communications on CPU serial ports COM1 and
COM2:
▪
Configuring Serial Ports Using COMMREQ Function 65520
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Serial I/O Protocol
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RTU Slave Protocol
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SNP Slave Protocol
Details of the RTU and SNP protocol are described in the Series 90 PLC Serial Communications User's
Manual, GFK-0582.
GFK-2222AD
April 2018
201
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- Rx7I Overview
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