Specifications

• Remote buildings where an MS/TP bus is not already available, but an Ethernet BACnet/IP network is (for
example, university or hospital campuses)
• Sites with a reliable network between buildings that do not need to have a separate NAE for the building (for
example, school districts)
Note: The ZFR1800 Series Wireless Field Bus System is not supported on the Remote Field Bus.
For details on how to add a Remote Field bus, refer to the MS/TP Field Bus Integration Object section in Metasys
SMP Help (LIT-1201793). For details on how to add a Remote Field Bus to a Metasys supervisory engine with an
ODS, refer to the ODS Commissioning Guide (LIT-12011944).
Additional background on the Remote Field Bus is covered in the following sections:
•
BACnet Router Configuration
•
Supervisory Engine Configuration for Adding Remote Field Bus
•
BACnet Router Wiring
•
Remote Field Bus Restrictions
•
Remote Field Bus Status and Statistics Attributes
•
Remote Field Bus Status Commands
BACnet Router Configuration
Configuration of the BACnet Router varies by vendor and model of the device, but several important configuration
settings are required for all routers. Table 2 lists those settings and Figure 4 provides an example. For more details
on BACnet Router parameters, refer to the documentation provided with your router.
Note: When you install a BACnet Router for adding a Remote Field Bus to the job site, you need a site-level, unique
MS/TP network number and device object ID (if it contains a device object) for the BACnet Router. In addition,
it is critical that you determine if a BACnet Broadcast Management Device (BBMD) is required for the BACnet
Router. If you configure the BACnet Router as a BBMD, assign a static IP address to both the router and the
NxE or ODS where you are configuring the MS/TP bus. For an existing installation, contact the BAS Manager,
Building Manager, or IT department for information on available network numbers, device object IDs, and
existing BBMDs for crossing IP subnets. Information on configuring a BBMD in a BACnet Router (if it supports
them internally) is available from the router vendor.
9MS/TP Communications Bus Technical Bulletin