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Application
The FX-PCA3611 Programmable Controller is part of the Facility Explorer
(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
Controllers (B-AACs) and integrate into Johnson Controls
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
FX-PCA3611 Advanced Application
Programmable Controller Installation
MS/TP Bus as BACnet Advanced Application
®
®
Instructions
Programmable Controller
®
and third-party BACnet systems.
*2410143616D*
(barcode for factory use only)
FX-PCA3611
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Table of Contents
Related Manuals for Johnson Controls FX-PCA3611
Summary of Contents for Johnson Controls FX-PCA3611
- Page 1 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.
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Page 2: North American Emissions
• do not support wireless connection to the N2 bus Fast persistence The FX-PCA3611-0 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. -
Page 3: Materials And Special Tools Needed
• Do not mount the controller in areas where electromagnetic emissions from other devices or wiring can interfere with controller communication. Observe these additional guidelines when mounting an FX-PCA3611 in a panel or enclosure: • Mount the controller so that the enclosure walls do not obstruct cover removal or ventilation through the controller. -
Page 4: Din Rail Mount Applications
DIN rail. Wall mount applications To mount an FX-PCA3611 directly on a wall or other flat vertical surface, complete the following steps: Pull the two bottom mounting clips outward and ensure they are locked in the extended position as shown in Figure 2. - Page 5 Important: Do not overtighten the mounting screws. Overtightening the screws may damage the mounting clips. Figure 2: Back of Controller showing extended mounting clips, DIN rail channel, and mounting dimensions, mm (in.) FX-PCA3611 Advanced Application Programmable Controller Installation Instructions...
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Page 6: Fx-Pca3611 Physical Features
VDC), Current Analog Input (4–20 mA), Resistive Analog Inputs (0–600k ohms), or Dry Contact Binary Input (see Input and Output wiring guidelines) End-of-Line (EOL) Switch (see Setting the End-of-Line (EOL) switch) LED Status Indicators (see Table 8) FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... -
Page 7: Terminal Blocks And Bus Ports
FX-PC Series Controllers MS/TP Communications Bus Technical Bulletin (LIT-12011670). Terminal blocks and bus ports FX-PCA3611 physical features for terminal block and bus port locations on the FX-PCA3611 controller. Observe the following guidelines when wiring an FX-PCA3611 controller. FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... -
Page 8: Input And Output Terminal Blocks
Wire the removable SA Bus terminal block plugs on the controller, and other SA bus devices in a daisy-chain configuration using 4-wire twisted, shielded cable as shown in Figure 5. For more information about the SA Bus terminal function, requirements, and ratings, see Table 5. FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... - Page 9 • The MAP Gateway serves as a replacement for the BTCVT, which is no longer available for purchase, but continues to be supported. Figure 6: Pin number assignments for sensor, SA bus, and FC bus ports on Controllers FX-PCA3611 Advanced Application Programmable Controller Installation Instructions...
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Page 10: Sensor Port
Powering network devices with uniform 24 VAC supply power phasing reduces noise, interference, and ground loop problems. The controller does not require an earth ground connection. FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... -
Page 11: Termination Diagrams
Termination diagrams A set of Johnson Controls termination diagrams provides details for wiring inputs and outputs to the controllers. See the figures in this section for the applicable termination diagrams. Table 2: Termination details Type of field Type of Termination diagrams... - Page 12 Input/ Output Current Input - External Source (Isolated) Current Input - Internal Source (2- wire) Current Input - Internal Source (3 wire) Current Input - External Source (in Loop) Feedback from EPP-1000 FX-PCA3611 Advanced Application Programmable Controller Installation Instructions...
- Page 13 CO or AO Output to Actuator (External Source) 0–10 VDC CO or AO Output to Actuator (Internal Source) Current CO or AO Output 24 VAC Triac CO or AO Output (Switch Low, External Source) FX-PCA3611 Advanced Application Programmable Controller Installation Instructions...
- Page 14 Table 2: Termination details Type of field Type of Termination diagrams device Input/ Output Analog Output (Current) 4–20 mA Output to Actuator 4–20 mA Output to Actuator Incremental Control to Actuator (Switch Low, Externally Sourced) FX-PCA3611 Advanced Application Programmable Controller Installation Instructions...
- Page 15 SA Bus Stat with Phone Jack (Fixed Address = 199) Note: The bottom jack (J2) on the TE-700 and TE-6x00 Series Sensors is not usable as a zone bus or an SAB connection. FX-PCA3611 Advanced Application Programmable Controller Installation Instructions...
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Page 16: Terminal Wiring Guidelines, Functions, Ratings, And Requirements
• Shielded cable is not required for input or output cables. • Shielded cable is recommended for input and output cables that are exposed to high electromagnetic or radio frequency noise. FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... -
Page 17: I/O Terminal Blocks, Ratings, And Requirements
® Silicon Temperature Sensor) Negative Temperature Coefficient (NTC) Sensor Binary Input - Dry Contact Maintained See Guideline A in Mode Table 4. 1 second minimum pulse width Internal 12 V. 15k ohms pull-up FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... - Page 18 Note: The Analog Output (AO) operates in the Voltage Mode when connected to devices with impedances greater than 1,000 ohms. Devices that drop below 1,000 ohm may not operate as intended for Voltage Mode applications. FX-PCA3611 Advanced Application Programmable Controller Installation Instructions...
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Page 19: Cable And Wire Length Guidelines
(<30 V) input and outputs. Note: The required wire sizes and lengths for high-voltage (>30 V) Relay Outputs are determined by the load connected to the relay, and local, national, or regional electrical codes. FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... -
Page 20: Maximum Cable Length Versus Load Current
Use Figure 8 to estimate the maximum cable length relative to the wire size and the load current (in mA) when wiring inputs and outputs. Note: Figure 8 applies to low-voltage (<30 V) inputs and outputs only. FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... -
Page 21: Communications Bus And Supply Power Wiring Guidelines
Note: The SA Bus and FC Bus wiring recommendations in this table are for MS/TP bus communications at 38.4k baud. For more information, refer to the FX-PC Series Controllers MS/ TP Communications Bus Technical Bulletin (LIT-12011670). FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... - Page 22 24 VAC Power Supply - Hot 0.8 mm to 1.0 mm Supply 20–30 VAC (Nominal 24 VAC) (18 AWG) 2-wire 24 VAC Power Supply Common (Isolated from all other Common terminals on controller) 14 VA FX-PCA3611 Advanced Application Programmable Controller Installation Instructions...
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Page 23: Setup And Adjustments
You set an FX-PCA3611 controller's device address by setting the positions of the switches on the DIP switch block at the top of the controller (Figure 3). Device addresses 4 through 127 are the valid addresses for these controllers on an MS/TP FC Bus. -
Page 24: Setting The N2 Controller Address To Be Greater Than 127
Wireless Field Bus system. 1. Disconnect the 24 VAC supply from the controller. 2. Remove the FC Bus connector from the controller. 3. Set the address switch set to the desired N2 address. FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... -
Page 25: Removing The Controller Cover
Pivot the top of the cover further to release it from the lower two latches. Replace the cover by placing it squarely over the base, and then gently and evenly push the cover on to the latches until they snap into the latched position. FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... -
Page 26: Setting The End-Of-Line (Eol) Switch
See Figure 10 for the EOL switch location. The default EOL switch position is Off. Figure 11: End-of-Line switch positions To set the EOL switch on an FX-PCA3611 controller, complete the following steps: Determine the physical location of the controller on the FC bus. -
Page 27: Setting The Input Jumpers
Important: Current loop jumpers must be in the Disabled (default) position for all UIs that are not set up to operate as 4–20 mA analog inputs. The following table identifies the current loop switches associated with each UI on the FX-PCA3611 controller. -
Page 28: Troubleshooting The Controllers
Jumper Label on Circuit Board Setting up a local display The FX-PCA3611 model does not have an integral display, but you can connect the controller to a FX-DIS1710 Local Controller Display. For detailed information about setting up and operating either... -
Page 29: Repair Information
Off Steady = EOL switch in Off position terminating devices) Repair information If the FX-PCA3611 controller fails to operate within its specifications, replace the controller. For a replacement controller, contact your Johnson Controls representative. Accessories Table 9: Accessories Ordering Information... - Page 30 ZigBee USB dongle. For additional information on the ZFR- USBHA-0 ZigBee dongle, refer to the FX-ZFR Series Wireless Field Bus System Technical Bulletin (LIT-12011660) or FX-ZFR Series Wireless Field Bus System Quick Reference Guide (LIT-12011696). FX-PCA3611 Advanced Application Programmable Controller Installation Instructions...
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Page 31: Technical Specifications
Technical specifications Table 10: FX-PCA3611 Advanced Application Programmable Controller Product Code Numbers FX-PCA3611 Advanced Application Programmable Controller. Supply Voltage 24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50/60 Hz, power supply Class 2 (North America), Safety Extra-Low Voltage (SELV) (Europe) - Page 32 The performance specifications are nominal and conform to acceptable industry standard. For application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls shall not be liable for damages resulting from misapplication or misuse of its products.
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Page 33: Points Of Single Contact
JOHNSON CONTROLS JOHNSON CONTROLS JOHNSON CONTROLS C/O CONTROLS PRODUCT MANAGEMENT WESTENDHOF 3 507 E MICHIGAN ST NO. 32 CHANGJIJANG RD NEW DISTRICT 45143 ESSEN MILWAUKEE WI 53202 WUXI JIANGSU PROVINCE 214028 GERMANY CHINA FX-PCA3611 Advanced Application Programmable Controller Installation Instructions... - Page 34 © 2019 Johnson Controls. All rights reserved. All specifications and other information shown were current as of document revision and are subject to change without notice. www.johnsoncontrols.com...
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