Data Sheet for Product

Technical Specification Sheet
Document No. 149-837
February 20, 2018
Siemens Industry, Inc. Page 1 of 6
Compact Series Unitary Equipment
Controller
Figure 1. PXC Compact Series Unitary Equipment Controllers
(PXC UEC-16/24).
Description
The PXC Compact Series Unitary Equipment
Controller (Programmable Controller–Compact) for
BACnet networks is a high-performance Direct Digital
Control (DDC) equipment controller, which is an
integral part of the APOGEE Automation System. The
controllers are classified as a BACnet Advanced
Application Controller (B-AAC) with support for
BACnet MS/TP protocol.
The PXC Compact UEC Series offers integrated I/O
based on state-of-the-art TX-I/O™ Technology, which
provides superior flexibility of point and signal types,
and makes it an optimal solution for Air Handling Unit
(AHU) control.
The Unitary Equipment Controller communicates with
other field panels or workstations on a peer-to-peer
Automation Level Network (ALN), or on the Field
Level Network (FLN), and supports the following
communication options:
l Native BACnet MS/TP on RS-485
Features
l BACnet Testing Laboratories (BTL) certified
Classified as BACnet Advanced Application
Controllers (B-AAC) using the BACnet MS/TP
protocol for specific models.
l Sophisticated Adaptive Control, a closed loop
control algorithm that auto-adjusts to compensate
for load/seasonal changes.
l Message control for terminals, printers, pagers,
and workstations.
l HMI RS-232 and USB port, which provides laptop
connectivity for local operation and engineering.
l Extended battery backup of Real Time Clock.
l Auto Save and persistent database backup and
restore within the controller.
l PXM10T and PXM10S support: Optional LCD
Local user interface with HOA (Hand-off-auto)
capability and point commanding and monitoring
features.
l An extended temperature range for the control of
rooftop devices.
Compact Series Unitary
Equipment Controller
The PXC Unitary Equipment Controller (UEC) is an
MS/TP device, that can be configured as a
programmable, stand-alone device or as a networked
device on the BACnet MS/TP ALN (Automation Level
Network) or FLN (Field Level Network) device.