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The pCOe is an Auxiliary I/O module that can be
used to monitor additional statuses within the unit.
The pCOe allows the user to view:
• 4 Digital Inputs
• 4 Digital Outputs
• 4 Analog Inputs
• 1 Analog Output
The inputs can be monitored either via the controller display or
Building Management System. See Points List for detailed point
information.
In order for the main controller to read the Auxiliary I/O, several parameters must be set in the menu screens. (If
you have a pCOe installed from the factory, the controller is most likely already set up for communication with
the main controller.)
Unit Expansion I/O
Enable Expansion
Yes
pCOe I/O Config
pCOe number:
Analog input type
Ch 1&2 : 4.. 20 mA
Ch 3&4 : Carel NTC
pCOe I/O Config
pCOe number:
Analog input limits
Ch 1 Min:
0.0
Ch 1 Max:
10.0
Ch 2 Min:
0.0
Ch 2 Max:
10.0
pCOe Digital Inputs
pCOe number:
Channel ID1:
Open
Channel ID2:
Open
Channel ID3:
Open
Channel ID4:
Open
pCOe Analog Channels
pCOe number:
Input B1:
0.0
Input B2:
0.0
Input B3:
70.0°F
Input B4:
70.0°F
Output Y1:
0.0vdc
pCOe Digital Outputs
pCOe number:
Output NO1:
OFF
Output NO2:
OFF
Output NO3:
OFF
Output NO4:
OFF
®
Auxiliary I/O (pCOe)
Enable Expansion I/O - Go to Manufacturer > Configuration. You will have to
enter the Manufacturer password (Default = 1000). Go to the Unit Expansion
I/O screen, and make sure Enable Expansion = Yes.
Customize Analog Inputs - The analog inputs are grouped in pairs according
to their input types (Channels B1, B2 and Channels B3, B4). To select the
1
input type, go to Manufacturer > I/O Configuration. You will have to enter the
Manufacturer password (Default = 1000). At the very end of the menu are the
I/O Config screens for the pCOe analog inputs.
The pCOe analog inputs are set up as Carel NTC temperature probes default
from the factory. The analog inputs can be also be set for the following input
types: 0/1VDC, 0/20mA, 4/20mA or 0/5VDC.
1
If selected as anything other than Carel NTC, the user has the capability to
scale the input to match the probe range. An example screen is shown on the
left.
View Input Values - To view input values, go to Input/Output. At the very end
of the menu are the status screens of the pCOe inputs and outputs. Similarly,
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the pCOe I/O values can be viewed on the BMS. See Points List for more
details.
1
1
24 VAC Power
0/10 VDC
Analog Output
Communication
Cable to Main
Controller
Setup
DDC Controller for Tempered Air Products
Digital Inputs
Linked Analog Inputs
(NTC, 0/1VDC, 0/20mA, 4/20mA, 0/5VDC)
Linked Analog Inputs
(NTC, 0/1VDC, 0/20mA, 4/20mA, 0/5VDC)
Digital
Outputs
27
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