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Marvair Scholar 2.0 I&S Manual 04/2022 Rev.2
Chapter 4: Scholar 2.0 Networking and Remote Communication
4.01 BACNET INFORMATION
This section serves as a reference for the BACnet Information on the VDA units. Below
are all the Analog and Boolean points that are Read/ Write and Read only. BACnet
device ID & IP address can be configured over BACnet network or locally on the PLC
screen to address multiply units over BACnet network.
• BACnet Device ID: 0 (Default)
• BACnet IP Port: 47808
• PLC IP Address: 10.0.0.100 (Default)
MARVAIR VDA UNIT BACNET POINTS
(Read/Write)
(Read Only)
BACnet Input Boolean Points
BACnet Output Boolean Points
• G IN
• CC
• Y IN
• HC
• Y2 IN
• IBM
• O IN
• OFM
• W2 IN
• RVS
• HUM IN
• RHS
• VENT IN
• OAM
• EMS IN
• Y2
BACnet Motor Analog Values
BACnet Output Analog Values
• G/Y1 SPEED
• OUTDOOR FAN SPEED
• Y2 SPEED
• BLOWER SPEED
• HUM SPEED
• OUTDOOR TEMP
• INTAKE MOTOR SPEED
• SUPPLY AIR TEMP
• OFM MOTOR SPEED
BACnet Alarms Status Points
• LPS
• HPS
• LOI
• EMS
4.02 RS-485 MODBUS SERIAL PORT
1.
Overview.
The TM172DCL•••• can be connected to the controller through the RS-485
Modbus.
2.
Connector.
RS-485 connector (CN3):
Note:
GND of the RS-485 terminal is not internally connected to the “-” of the power supply terminal of the device.
