Rotary Switch Values And Bacnet ® Device Id - Trane BACnet MS/TP Installation, Operation And Maintenance Manual

Setting the BACnet
This section describes the best practices for setting the rotary switch values on a BACnet
Rotary Switch Values and BACnet
Rotary Switch Values
The rotary switch value is the physical address of a device on a network. It is often referred to as the MAC
address. The term is generic and is used to denote the physical address of many types of networks. For
example, the rotary switch address of a BACnet
can be represented by a single byte. The MAC address of an Ethernet network is six bytes in length. Each
device must be assigned a unique rotary switch address. Failure to assign a unique value to each device
will result in communication errors.
BACnet
The BACnet
of this address is 0 to 4194302 (see BACnet
the logical address in an Internet Protocol (IP) network is the IP address, which is four bytes in length and
is typically written in the format of 192.168.1.125. Failure to assign unique address to each device will
result in communication errors.
How Rotary Switch Addresses and BACnet
When rotary switch addresses and BACnet
result is a unique BACnet
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BAS-SVX51L-EN
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Device Addresses
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Device ID
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Device ID
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Device ID uniquely identifies each BACnet
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Device ID for each device.
In a three-story building, there is a Tracer
– The rotary dial setting on the Tracer
– The rotary dial setting on the Tracer
– The rotary dial setting on the Tracer
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Each Tracer SC+ has two BACnet
total on each floor). The rotary dials on the UC400 controllers are set to 001 and 002.
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MS/TP network has a valid range of zero (0) to 255 and
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device as a logical address. The valid range
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standard 2016 sections: 22.1.5 and 24.2.4). For example,
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Devices IDs Work Together
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Device IDs are configured as shown in
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SC+ installed on each floor.
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SC+ on the first floor is set to 001.
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SC+ on the second floor is set to 020.
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SC+ on the third floor is set to 300.
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links with two UC400 controllers wired to each link (four UC400s
Best Practices
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MS/TP link.
Figure 9, p. 16 the
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