Specifications

34 Rockwell Automation Publication AG-SG001G-EN-P - April 2015
Chapter 2 Choosing a Telemetry Network
DF1 Radio Modem Protocol
Using DF1 radio modem protocol in radio modem configurations provides one
or more of these advantages, depending upon the radio modem used:
• Any station can initiate to any other station at any time for true Report-by-
Exception capability.
• Any station can be configured to be a Store & Forward node between
nodes that are not within radio reception range of one another.
• Any station can be programmed over the radio network.
• Any station can broadcast write a block of data to all remote stations
simultaneously for synchronization purposes.
DF1 Full-duplex Protocol
Using DF1 full-duplex protocol provides these advantages:
• Either station can initiate to the other station at any time for true Report-
by-Exception capability.
• Simultaneous transmissions over full-duplex channel for maximum
throughput.
Ethernet/Industrial Protocol (EtherNet/IP)
Use EtherNet/IP over any Internet Protocol-based telemetry network, such as
Ethernet radio modems, cellular data modems, or the Internet.
This open protocol (maintained by ODVA at www.odva.org
) provides the
following advantages:
• Any station can initiate to any other station at any time for true Report-by-
Exception capability.
• Any station can be programmed over the network.