FAC3611 Advanced Application Controller
Installation Guide
Application
The FAC3611 Advanced Application Field Equipment
Controller (FAC) is part of the Metasys
®
system Field
Equipment Controller family. The FAC36 Series controllers
run pre-engineered and user-programmed applications
and provides the inputs and outputs required to monitor
and control a wide variety of HVAC and other facility
equipment.
FAC36 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.
FAC36 field 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 Metasys system network.
Switchable communications protocols
By default, the Metasys system FEC Family Controllers
and network sensors communicate using the standard
BACnet protocol based on the ANSI/ASHRAE 135-2008. The
BACnet protocol is a standard for ANSI, ASHRAE, and the
International Standards Organization (ISO) for building
controls.
FEC, VMA16, and VMA18 are BTL-listed as BACnet
Application Specific Controllers (B-ASCs). FAC Field
Controllers and the VMA1930 Field Controller 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 and later of the Controller Configuration Tool
(CCT) can be used to switch the Field Bus communications
protocol in supported FEC Family Field Controllers to be
either the standard BACnet MS/TP or the N2 protocol.
All new controllers use BACnet MS/TP as the default
communications protocol. Switchable communications
protocols in the MS/TP models provide a cost-effective
upgrade and modernization path for customers with
existing N2 controllers.
The N2-capable FEC Family Controllers can be used as
functional replacements for legacy N2 controllers. The N2-
capable FEC Family Controllers:
• have the input and output (I/O) quantities and
characteristics of the FEC Family Controllers
• must be programmed with CCT
• support SA Bus devices
• support WRZ wireless sensors from the controller using
the WRZ-7860 receiver (most models)
• are available in Buy American versions (most models)
The N2-capable controllers:
• do not support Zone Bus (for example, TMZ sensors
and M100 actuators) or XT-Bus (System 91) devices (for
example, XT, XTM, and XP modules)
• do not support a wireless connection to the N2 bus
• do not support NxE passthrough
Fast persistence
The FAC3611 model has been significantly upgraded and
now includes a fast persistence feature that allows you to
retain data values at a configurable interval, up to once
per second. Persistence refers to how often samples of
data are stored locally. This upgrade to the persistence
feature ensures that in the event of a problem, such as a
loss of power, more recent data can be retrieved up to the
rate that the data is persisted, minimizing the potential
loss of data. When power is restored, previously persisted
data, up to the rate of persistence, is still available and
accessible. When persistence is configured for once per
second, you risk losing only the most recent one second
of data before the power loss. Persisting data may be
essential for situations that require greater data accuracy.
This may include certain methods of utility data collection
and billing
Attributes that can be persisted in the FAC3611 include:
Counter Input Present Value Attributes, Binary Input,
Binary Output, and Binary Value COS Counts and Active
Time Attributes, and PID/PRAC tuning parameters.
North American emissions compliance
United States
This equipment has been tested and found to comply with
the limits for a Class A digital device pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when
this equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications. Operation
of this equipment in a residential area may cause harmful
interference, in which case the users will be required to
correct the interference at their own expense.
Canada
This Class (A) digital apparatus meets all the requirements
of the Canadian Interference-Causing Equipment
Regulations.
Cet appareil numérique de la Classe (A) respecte toutes
les exigences du Règlement sur le matériel brouilleur du
Canada.
*2410143470G*
Part No. 24-10143-470 Rev. G
2019-10-18
(barcode for factory use only)
MS-FAC3611
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