Grundfos BACnet IP, Функциональный профиль и руководство пользователя

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5. Define control source for MIXIT to accept remote BACnet
commands.
• Set BO,0 to 1 for the MIXIT unit to accept remote BACnet
commands. As default, BO,0 is set to 0 (power on). This
means that if the MIXIT unit has been power cycled, you
must set BO,0 to 1 again in order to set the product back to
bus control.
• The actual control state is verified via BI,0.
ID
Object
name
R/W Description
BO,0
Set Control
Source
W
0: Local control (default)
1: Bus control
BI,0
Status
Control
Source
R
0: Local control
1: Bus control
You are now ready to customise your BACnet IP connection.
4. Setting the application type
1. Set the application type via MO,2.
MO,2 can be used to switch between heating and cooling
applications when the product is connected to a dual pipe
system.
2. Confirm via MI,1.
ID Object name R/W Description
MO,2
Set
Application
Type [Enum]
W
1: Radiator heating
2: Underfloor heating
3: Heating coil
4: Cooling coil
MI,1
Data
Application
Type [Enum]
R
1: Radiator heating
2: Underfloor heating
3: Heating coil
4: Cooling coil
5. Controlling the valve manually
Instead of using a temperature setpoint to control the valve, you
can manually control the valve opening. This can be useful
when you want to degas the system or for other service purposes.
•
Control the valve opening via MO,1.
ID Object name R/W Description
MO,1
Set Manual
Valve
Function
W
1: Off (default)
2: 100% open
3: 50% open
4: 25% open
5: 0% (closed)
Function for manual setting of the
valve opening, e.g. for degassing
use or other service purposes.
6. Setting the temperature setpoint
Direct temperature setpoint
1. Set MV,0 to 3.
2. Provide the setpoint via AO,0.
Verification of the given setpoint is available in AI,0.
Setpoint from source
Configure the source of temperature setpoint via MV,0:
•
1: Setpoint is given via fieldbus. Set the setpoint via AO,2.
• 2: Setpoint is given via analog input terminals.
- Analog sensor inputs must be configured via Grundfos GO
Remote. See 8.2 Configuring a setpoint from analog input .
• 3: Direct temperature setpoint. Set the setpoint via AO,0.
• 4: Setpoint is given via an analog sensor. Outdoor sensor types
Pt1000 and 0-10 V are available.
- Configure a heat curve via AV,4 and AV5. See
7.6.1 Setting
outdoor temperature compensation .
- The sensor must be configured via Grundfos GO Remote.
See 8.1 Configuring an outdoor temperature sensor input
and outdoor temperature compensation .
• 5: Setpoint is controlled by the outdoor temperature via
fieldbus.
• 6: Setpoint is given via an external sensor.
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