Network Topology; Network Communications Setup - Delta DFM-400P Installation & Application Manual

DFM-400P Rev 2.1 Installation and Appplication Guide Edition 1.6

Network Topology

1. Pulse Input Field Modules Configured as MS/TP Subnet Devices
Pulse Input Field Modules must reside on a BACnet RS-485 MS/TP network at the Subnet level with other
Subnet devices, allowing the Pulse Input Field Modules to readily communicate with other BACnet
devices. Typically this assumes that there is one other device configured as a System level device on the
network.
2. Pulse Input Field Modules Configured as LINKnet Devices
Not applicable for the DFM-400P Field Module, as it can only be connected to a BACnet RS-485 MS/TP
network.

Network Communications Setup

On an MS/TP network the Pulse Input Field Module communicates at a default speed of 76,800 bps, but
V3.22 OCRAview
supports autobaud to match the speed the rest of the network is running at. Refer to the
Technical Reference Manual
for further detail on configuring the MS/TP network or changing baud rates,
etc.
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