BMTX-SVN01C-EN 89
Chapter 7
Network communication
A Tracer Summit system uses the BACnet standard protocol for commu-
nication over networks made up of Tracer Summit BCUs and PC Work-
stations. Tracer Summit systems support the following protocols for
network communication. All of these protocols also employ the standard
BACnet protocol:
• Ethernet communication: Dedicated Ethernet and Internet Protocol
(IP) networks.
• ARCNET communication: A router is required for an ARCNET net-
work to communicate with a dedicated Ethernet network or an IP
network. The BMTX BCU does not support ARCNET.
• EIA-232 communication.
Device IDs
Every device on a Tracer Summit system network (BCU, PC Workstation,
non-Trane BACnet device) must have a device ID. For the BMTX BCU,
the device ID can be set via DIP switches (S1) on the BCU main circuit
board or by software (using the IP Validation utility). See Table 25 on
page 90 for DIP switch settings.
The valid range for the DIP switch is 1 through 254. A DIP switch set to
255 tells the BCU to allow a software set (“softset”) device ID instead. The
valid range of a softset device address is 1 through 4194303.
Trane recommends that the first BCU device start at address 01 and that
all additional BCUs be incremented sequentially. For the location of the
BCU address DIP switch, see Figure 2 on page 4.
Note:
Part numbers listed in this chapter were current at the time of
publication. Contact Trane if more information is needed to
order appropriate parts.
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