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To assign inputs or outputs to points
An input or output must be assigned to its corresponding point in the control program. This is typically done when
the control program is created, but you can adjust the settings at the time of installation in the i-Vu® interface.
1
In the i-Vu® navigation tree, select the equipment controlled by the Zone Ctrl II.
2
On the Properties page, select the I/O Points tab.
3
In each point's Num field, type the number of the controller's corresponding input or output. For example, if
you use BO1 on the Zone Ctrl II for the point Fan S/S, type 1 in the Num field for Fan S/S.
NOTES Do not assign the same output number to more than one point.
4
Enter the appropriate values for each input and output in the remaining columns. See Input values, Output
values, Resolution values and Offset/Polarity values below.
NOTE You can also enter these values in the Snap application.
5
If you have not performed the initial download to the Zone Ctrl II, you must download now so you can verify
inputs and outputs.
6
To verify each input's operation, force each sensor to a known value, then compare it to the Value shown on
the Properties page on the I/O Points tab.
7
To verify each output's operation, lock each output to a known condition on the I/O Points tab, then verify
that the equipment operates correctly.
Input values
Input
Analog (BAI)
0-5 Vdc
Thermistor
Pulse to Analog (BPTA)
Pulse Counter
Digital (Binary) (BBI)
Dry Contact
Zone Ctrl II and
VAV Zone II Secondary Duct Installation and Start-up Guide
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I/O Type
Sensor/Actuator Type
0–5 Volt
Linear Full Range
Thermistor
Select your Thermistor type or
set up and select a Non-Linear,
Custom Table
3
Counter Input
N/A
Dry Contact
N/A
2
31
To assign inputs or outputs to points
Min/Max
Engineering values associated
with 0 Vdc (Min) and 5 Vdc (Max)
1
N/A
N/A
N/A
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