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• 20KNTC
• Digital Active Short
• Digital Active Open
NOTE: The Analog Inputs may be configured as analog or
digital.
d. Select an Engineering Units. This list is enabled
when the Analog Input is configured as Resistive or
Voltage. The measurement types are listed here.
When you select an Engineering Units option, the
corresponding Engineering unit appear in the Sen-
sor fields.
e. Type the Input Low, Input High, Output Low and
Output High. The following fields are available:
• Input Low
• Input High
• Output Low
• Output High
NOTE: For standard sensors like PT_3000, 20_KNTC and
so on the values are filled in automatically.
f. Select the Input Type if the input is to be shared
across the network. The following Input Types are
available:
• Other
• OutdoorAirTemp
• OutdoorAirHumidity
• DischargeAirTemp
The type selection can be made based on the selected
sensor. For example, if the selected sensor is PT_3000, the
type cannot be OutdoorAirHumidity.
An Input type assigned to one Analog Input cannot be used
again for another Analog Input. For example, if you select
OutdoorAirTemp for Analog Input_1 it cannot be a selection of
any other Analog Input. To select OutdoorAirTemp (for say
Analog_Input_2), the selection for Analog_Input_1 needs to
be changed to Other.
3. To configure the Digital Inputs.
a. Click the Digital Inputs tab.
b. Select the digital channel from Select Input.
c. Type a name in Input Name.
d. Select required input from Input Kind. The input
kind can be one of the following types:
• Unconfigured
• DigitalMaintained
• DigitalMomentary
• Counter Slow – They are capable of counting the
number of transitions on the digital input within
the range of 1 through 65,535. The 65,535th
pulse will automatically reset the counter back to
0. At the most two digital inputs can be
configured as Counters (both counter slow/fast
put together). The pulse must last for at least
1.25 seconds frequency must not be greater than
0.4 Hz.
• Counter Fast - They are capable of counting the
number of transitions on the digital input within
the range of 1 through 65,535. The 65,535th
pulse will automatically reset the counter back to
zero (0). At the most two digital inputs can be
configured as Counters (both counter slow/fast
put together). The pulse must last for at least 20
milliseconds frequency must not be greater than
15 Hz.
• Pulsemeter - At the most two digital inputs can
be configured as Pulsemeters. If 2 DIS are
configured as Pulsemeter, power from both will
be summed.
e. Select an Engineering Unit.
The Engineering Unit list contains all the engineer-
ing units you can assign to a digital input. Engineer-
ing Unit is enabled only for Input Kind of Maintained
and Momentary and disabled for all others.
f. Select a State.
The state option has 2 choices: Normally Open and
Normally Closed. By default, normally open is
selected. Normally open = Off when the input con-
tact is open and On when closed. Normally closed =
Off when the input contact is closed and On when
open.
g. Select a Type.
The type option has 2 choices: Unconfigured and
Sensor occupancy. The type option is enabled only
for Input Kind of Maintained and Momentary and
disabled for all others.
h. If the Input Kind selected is Pulsemeter then
Scale Factor field is enabled. Type the scaling fac-
tor. The scale factor is enabled only when the Input
Kind selected is Pulsemeter. The scale factor has a
range of 0 – 1000 KWHR/pulse.
4. To configure the Poll Points
a. Select the required poll point from Select Poll
Point.
b. Type a Poll Point Name.
c. Select a controller from Source Device. This
selects a controller which provides the input to the
XL15C's algorithm.
d. Select the network variable from Source NV.
e. Select the field from Source NV Field. This selects
the field from which the data is accessed.
f. Create a link between the poll point object and the
internal object. The appropriate link option displays
the slots available on the source and destination
object. For example, Click Control Loops and
select appropriate Link Type and Link Name.
g. Select an appropriate source slot/link (for example,
Analog link) on the poll point and select an appropri-
ate destination slot/link (for example, Sensor Link)
on the destination object.
NOTE: Since these points are polled by the XL15C
controller, it is not required to perform a bind
operation.
Configuring XL15C Setpoints
The XL15C controller has 40 setpoints. These are points
internal to the XL15C controller for which a value and
engineering unit may be set. They may be used as predefined
Analog Inputs to SS loop, Control loop, Logic loop and math
functions.
Setpoints may be used to provide analog inputs to Start/Stop
Loops, Control Loops, Logic Loops and Math Functions.
Setpoint values are constants that may be changed from an
operator interface.