FX-PCA3611 Advanced Application
Programmable Controller Installation
Instructions
Application
The FX-PCA3611 Programmable Controller is part of the Facility Explorer
®
Programmable Controller
(FX-PC) family. The FX-PCA36 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 and other facility equipment.
FX-PCA36 controllers operate on an RS-485 BACnet
®
MS/TP Bus as BACnet Advanced Application
Controllers (B-AACs) and integrate into Johnson Controls
®
and third-party BACnet systems.
FX-PCA36 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 protocol
The FX-PCA3611 controllers can communicate using BACnet MS/TP, N2, or wireless Zigbee. 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 the Controller Configuration Tool (CCT) 13.0 can be used to switch the Field Bus
communications protocol in FX-PC Controllers to be either the standard BACnet 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 CCT 13.0 and later, 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
Part No. 24-10143-616 Rev D
2019-03-22
(barcode for factory use only)
FX-PCA3611
*2410143616D*
