Bacnet Ms/Tp (M5.8.3) - Siemens bt300 Operator's Manual

1. Complete all settings required for Monitoring as listed above.
2. Set Ctrl. Place Auto (P3.2.1) to a value of FieldbusCTRL.
For commanding Start/Stop through the N2 protocol and Speed Reference through an Analog Input, complete the
following changes:
1. Complete all settings required for Monitoring as listed above.
2. Set Ctrl. Place Auto (P3.2.1) to a value of FieldbusCTRL.
3. Set FieldbusCtrl Ref (P3.3.9) to a value of AI1 or AI2 (depending upon which AI is in use).
For commanding Start/Stop through a Digital Input and Speed Reference through the N2 protocol, complete the
following changes:
1. Complete all settings required for Monitoring as listed above.
2. Set Ctrl. Place Auto (P3.2.1) to a value of I/O Control.
3. Set I/O A Ctrl Ref (P3.3.3) to a value of Fieldbus.

BACnet MS/TP (M5.8.3)

BACnet stands for Building Automation and Control Networks. It is the common name for the communications
standard ISO 16484-5 which defines the methods and the protocol for cooperating building automation devices to
communicate. Devices can be designed to operate using BACnet communication protocol, as well as utilizing
BACnet protocol to communicate between systems. BACnet is an internationally accepted protocol for building
automation and control over a communications network.
BACnet provide a method by which computer-based control equipment form different manufacturers can work
together, or "interoperate". To achieve, components must be able to exchange and understand BACnet data
messages.
The Siemens BT300 is standard equipped with BACnet support.
If Protocol (P5.8.1.1) is set to a value of BACnet MS/TP, then configuration and status parameters related to the
BACnet MS/TP fieldbus protocol are made available.
Parameters (M5.8.3.1)
The following configuration parameters are available for the BACnet MS/TP fieldbus protocol:
Menu Parameter
P5.8.3.1.1 Baud Rate
P5.8.3.1.2 Autobauding
P5.8.3.1.3 MAC Address
P5.8.3.1.4 Instance Number
P5.8.3.1.5 Communications Timeout
Siemens Industry, Inc.
Building Technologies
Table 95: BACnet MS/TP Parameters.
ID Unit
2392 bps 9600
2330 Disabled
2331 1
2332 0
2333 s 0
Siemens BT300 HVAC Drive
Chapter 4 - Parameters and Menu Structure
Min Max Default
76800 9600
Enabled Disabled
127 1
4194303 0
65535 10
I/O and Hardware (M5)
Description
on the network as follows:
1 = 9600
2 = 19200
3 = 38400
4 = 76800
Defines if autobauding can be used to
configure the Baud Rate (P5.8.3.1.1).
Defines the unique device address for the
RS-485 network.
Defines the unique device address for the
IP network if a IP-MS/TP router is used.
Defines the amount of time in which a
packet is not received before a
communications timeout is faulted/alarmed.
123 | 180
DPD01809
2016-06-07