AdvAntAge - digitAl vAv diffusers
NATIVE BACNET NETWORK INTERFACE OPTIONAL ACCESSORY
30
ACUTHERM ADVANTAGE - Manual
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acutherm.com
Once all settings are made, scroll down to press Menu to exit, and press Menu. The controller will then re-start, this is because all
BACnet info is only read once at startup. If you had left the MAC set in hardware, and adjusted the DIP switch settings to set the
MAC address, you would have to manually restart the controller by cycling 24 VAC power for the new MAC address to take effect
(setting through software makes the restart happen automatically however).
BACnet service Menu
The device instance defaults to 100, but will be displayed with
the last 2 digits as the MAC. Press Menu then use the arrow
keys to change the device instance.
nOte:
Each Menu press will change allow changes in different
tiers of the device instance (so that you don’t have to scroll for
extended periods to get into the millions range - supposing
that’s where you need to set your device instance)
The baud rate is the speed that the MS/TP network runs at.
EVERY device on the network must run at the same speed.
Acutherm controllers are defaulted to a baud rate of 76800,
but can be changed to 38400, 19200, or 9600. For a network
segment with all Acutherm controllers (including Acutherm
PRTU systems), it’s recommended that the baud rate be left at
76800.
*Choose lower baud rates only when integrating with devices
by other manufacturers whose maximum speed is lower than
76800 (eg. 38400).
deviCe inst.
101
BAud rAte
76800
THEN
THEN
OR
OR
BACnet networking and setup
Setting the MAC Address
MAC (media access control) must be UNIQUE on an MS/TP network segment within building. An installer setting up an MS/TP
segment must ensure each device has a UNIQUE MAC Address (range 1-99). The MAC Address is set through the dip switches
or through the LCD thermostat (or LCD Setup Tool).
nOte:
Each device on a MS/TP segment must be set to run at the same speed or baud rate.
24 VAC power HOT and COMMON polarities are critical and must not be reversed on ANY devices! Reverse polarity will stop
communication on that MS/TP segment. All 24 VAC transformers must be grounded on their secondary side for BACnet to work.
NET COM wire must be connected at each device and is critical for BACnet network reliability.
Use one twisted pair for+ and-, and another twisted pair for NET COM for optimal noise cancellation.
TECH TIP
