Honeywell IAQPoint2 Technical Manual page 36

IAQPoint2
Configure menu > Configure Fieldbus
Configure Fieldbus
Protocol: Modbus
Baudrate: 9600
Address: 1
ID: n/a
Parity: Even
This screen is available only on models with the BACnet/Modbus interface� The
monitor's fieldbus configuration options apply only to RS-485-enabled units�
The monitor will reboot whenever the [Accept] button is pressed so that the new
communication parameters will be implemented correctly�
Configure menu > Configure Fieldbus > Set Protocol
The monitor can be configured for either BACnet or Modbus from the Set Protocol
screen� The default is Modbus�
If the monitor is to communicate with the Honeywell Analytics 301C controller, this
screen should be configured for Modbus, 9600 baud, and no parity� The address
must be unique� If the monitor contains the optional temperature/humidity sensor,
the next two higher addresses should not be used�
Configure > Configure Fieldbus > Set Fieldbus Speed
The data rate of the fieldbus (from 4800 to 115200 baud) is selected at this screen�
This value must match all of the other devices on the segment�
Configure > Configure Fieldbus > Set Address
If the BACnet protocol is selected, this screen facilitates setting the BACnet MAC
address from 1 to 127� If the Modbus protocol is selected, it facilitates setting the
Modbus ID from 1 to 247� The address must be unique within the segment�
Configure > Configure Fieldbus > Set BACnet ID
The BACnet ID can be adjusted to any value between 1 and 4,194,302 with the
numeric keyboard� The default value is 1� The Set BACnet ID menu applies only
if the BACnet protocol is selected� This number must be unique within the entire
network� A network may consist of multiple segments separated by routers� Values
from 0 to 4194302 may be entered�
Configure menu > Fieldbus submenu > Set Parity
Parity value selections apply only to monitors configured with the Modbus
communications protocol� Even parity is the default�
This parity screen is available only if the Modbus protocol is selected� (BACnet
always uses no parity�) The monitor will use one stop bit unless the parity is set to
"none" in which case it will use two stop bits�
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