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BACnet MS/TP—On-Board Communication
POWERXL SERIES VFD MN040010EN—June 2018 www.eaton.com
BACnet MS/TP parameters
Baud Rate
Select the communication speed for the network.
Thedefault value is 38400 baud.
MAC address
The parameters of every device must be set before
connecting to the bus. Especially the parameters MAC
Address and baud rate must be the same as in the master’s
configuration. The first parameter, MAC (Medium Access
Control) address, must be unique on the network to which
it is connected. The same MAC address may be used
on a device on another network within the internetwork.
Addresses 128–254 are reserved for slaves. Addresses
1–127 are valid for both masters and slaves. The portion
of the address space that is actually used for masters
in a particular installation is determined by the value
of the Max_Master property of the device object. It is
recommended that MAC address 0 be reserved for the
MS/ TP router and MAC address 255 is used for broadcasts.
Instance number
The Device Object’s Instance number is used in conjunction
with the MAC address to assign the devices on the
network. The instance number can have up to 127 nodes on
it before a different instance number is required.
Communication time-out
BACnet board initiates a communication error if the board is
a “sole master” in the network for a time defined with this
parameter.
BACnet overview
BACnet technical data
Protocol Implementation Conformance Statement (PICS)
Controller Profile
•
B—ASC
Segmentation Capability
•
Not supported
Data Link Layer and Routing Options
•
MS/TP Master Baud rates
(9600,19200,38400, 76800, 115200)
Character Sets Supported
•
UTF8
BIBBS Supported
•
Data Sharing
• ReadProperty
—
B
• WriteProperty
—
B
•
Device Management
• Dynamic Device Binding
—
B
• Dynamic Object Binding
—
B
• DeviceCommunicationControl
—
B
• ReinitializeDevice
—
B
•
Alarms and Events: Not supported
•
Schedules: Not supported
•
Trends: Not supported
•
Network Management: Not supported
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