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1 6 | Control Air M/M+ Water to Water Applications
9.2.2 Device Settings Screen
Figure 18
The Device Settings menu allows the user to adjust or reset any settings
on the actual Control Air M/M+ module.
On this screen the BACnet® ID will be displayed. This value can be
changed, however, it is not recommend to change this parameter
arbitrarily as it may cause network problems.
Always consult with Network Administrator (Front End company) before
changing the controllers BACnet® ID as it may interfere with other devices
in the network.
Two main sub menus are available on this screen:
Controller
Touchscreen
9.2.2.1 Controller Screen
Figure 19
This screen provides access to the device Module Setup menu, that
provides the end-user the ability to set the time/date, update device
communication information, and access to the Time Master page.
9.2.2.1.1 Set Time and Date
Touch the time or date fi eld to edit it.
Figure 20
Data subject to change
9.2.2.1.2 Communication
This screen lets you edit the information below for the controller.
Figure 21
Touch a fi eld to tap in new information.
—
BACnet Device Instance – number
—
Auto Generate Device ID – Enter No or Yes
You can edit the following fi elds that pertain to the controller's MS/
TP network:
—
Max Masters - Set this to the highest MAC
address (up to 127) on the MS/TP network. If
you later add a device with a higher address, you
must change this field to that new address.
—
Max Info Frames - Specifi es the maximum
number of information messages a controller
may transmit before it must pass the token to the
next controller. CAUTION Increasing this number
allows the controller to transmit more messages
while it has the token, but it also increases the
overall time it takes for the token to pass through
the network.
For a router, set this value to a high number such as 200
In non-router controllers, use the following formula to
calculate this value: [2 - (devices * (.002 + (80/baud))] /
[(600/baud) * devices] = Max Info Frames
For example, if the network has 15 devices at 19200 baud,
Max Info Frames would be 4.
You may need to increase the result of the formula for controllers
that need to communicate many values to other devices.
Installation & Operation Manual
02.2019 | BTC 469503103 A
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