46 Rockwell Automation Publication 5069-UM003B-EN-P - January 2020
Chapter 3 Compact 5000 I/O Serial Module Features
DF1 Point-to-Point Protocol
The DF1 Point to Point protocol is used when connecting from the controller to
one DF1 device (or another controller).
This type of protocol supports simultaneous transmissions between two
controllers (or devices) in both directions.
Figure 13 - DF1 Point-to-Point Protocol
Studio 5000
CompactLogix 5380
Modem
PCCC Message
DF1 Controller (or device)
MLX, PLC5 (Only one station), SLC, and so on.
Modem
Telephone or
Direct Line
IMPORTANT DF1 and DH-485 protocols use channel 1 only and must be local.
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