FX-PCA2611-0 Advanced Application Programmable
Controller Installation Instructions
Part No. 24-10143-403, Rev. E
FX-PCA2611-0
Issued April 2016
Refer to the
for the most up-to-date version of this document.
Application
The FX-PCA2611-0 Advanced Application Programmable
Controller is part of the Facility Explorer Programmable
Controller (FX-PC) family. The FX-PCA26 Series
controllers run pre-engineered and user-programmed
applications and provide the inputs and outputs required
to monitor and control a wide variety of HVAC equipment.
FX-PCA26 controllers operate on an RS-485 BACnet
®
Master-Slave/Token-Passing (MS/TP) Bus as BACnet
Advanced Application Controllers (B-AACs) and integrate
into Johnson Controls
®
and third-party BACnet systems.
FX-PCA26 controllers include an integral real-time clock,
which enables the controllers to monitor and control
schedules, calendars, and trends, and operate for
extended periods of time as stand-alone controllers when
offline from the system network.
Switchable Communications
Protocols
By default, the FX-PC family controllers and network
sensors communicate using the standard BACnet
®
protocol, based on the ANSI/ASHRAE 135-2004.
The BACnet protocol is a standard for ANSI, ASHRAE,
and the International Standards Organization (ISO) for
building controls.
FX-PCG, FX-PCX, and FX-PCV controllers are BTL-
tested and listed as BACnet Application Specific
Controllers (B-ASCs). FX-PCA field controllers are
BTL-listed as BACnet Advanced Application Controllers
(B-AACs). The NS Series Sensors are BTL-listed as
BACnet Smart Sensors (B-SSs).
Release 10.1 of FX-PCT and later can be used to switch
the Field Bus communications protocol in FX-PC
Controllers to be either the standard BACnet
Master-Slave/Token-Passing (MS/TP) or the N2 protocol.
BACnet MS/TP is the default communications protocol
for all new controllers. Switchable communications
protocols provide a cost-effective upgrade and
modernization path for customers with existing N2
controllers. The
Modernization Guide for Legacy N2
Controllers (LIT-12012045)
and the controller-specific
documentation provide installation and commissioning
support and include tips for efficient and safe
replacement. Refer to the
N2 Compatibility Options
chapter of the
Controller Tool Help (LIT-12011147)
for
information about mapping N2 Objects in controllers with
switchable communications protocols.
The N2-capable FX-PC controllers can be used as
functional replacements for legacy N2 controllers. The
N2-capable FX-PC controllers:
•
have the I/O quantities and characteristics of the
FX-PC family controllers
•
must be programmed with FX-PCT, which has
programming capabilities that are similar (but not
identical) to HVACPro, GX9100, GPL, and other
legacy tools
•
support SA Bus devices
•
support FX-WRZ wireless sensors from the controller
using the FX-WRZ7860 receiver when configured for
BACnet MS/TP communication
The N2-capable FX-PC controllers:
•
do not support Zone Bus (for example, TMZ sensors
and M100 actuators)
•
do not support pass through in the commissioning
mode
•
do not support remote downloading or commissioning
using BACnet routing
•
do not support wireless connection to the N2 bus
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FX-PCA2611-0 Advanced Application Programmable Controller Installation Instructions
