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D - understanding the communication protocols, Understanding the communication protocols – Rockwell Automation 1761 MicroLogix 1000 Programmable Controllers User Manual

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Reference

Understanding the Communication Protocols

D–1

D

Understanding the Communication

Protocols

Use the information in this appendix to understand the differences in
communication protocols. The following protocols are supported from the RS-232
communication channel:

DF1 Full-Duplex and DF1 Half-Duplex Slave

All MicroLogix 1000 controllers support the DF1 full-duplex protocol. Series
D or later discrete and all MicroLogix 1000 analog controllers also support DF1
half-duplex slave protocol.

DH-485

Series C or later discrete and all MicroLogix 1000 analog controllers can
communicate on DH-485 networks using an AIC+ Advanced Interface
Converter.

For information about required network connecting equipment, see chapter 3,
Connecting the System.