One controller, thousands of applications. With a multicore processor, a massive database, and options for Ethernet or MS/TP connectivity in a compact shell, the RC‑FLEXone® advanced unitary BACnet Building Controller from Reliable Controls is designed to effortlessly handle a wide variety of equipment and room control applications. The RC-FLEXone features innovative FLEX I/O universal input/output technology that lets facility professionals customize its inputs and outputs to meet the unique demands of any building.
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Backward compatible, future ready

  • Reliable Controls tests every product it manufactures to ensure compatibility with previous-generation controllers. The RC‑FLEXone is no different. You can add it to networks that host previous-generation controllers without the need to purchase costly third-party gateways or accessories. To further future-proof your investment, the RC‑FLEXone features an open-source Linux operating system, renowned for its cybersecurity resilience and global community of programming support.

Better by design

  • RC-FLEX controllers are equipped with a versatile USB application port that provides convenient access to a technician today and extended capabilities tomorrow. You can power the controller via USB from a laptop to permit configuration, firmware updates, programming, and graphics creation. You can also use the USB port to access the entire BACnet network.
  • All input, output, and communication ports are hardware‑protected against transient surges and spikes, which hardens the controller against field-wiring mistakes and improves resilience.

Database? 
 More like databeast

  • With tons of nonvolatile memory, the RC‑FLEXone has enough space to handle the most challenging applications now and in the future. It automatically logs all input, output, value, calendar, loop, and schedule objects, which each stores more than 2,000 records. That’s enough for over 1 million data points. It also has space for 64 control programs, each large enough to run advanced energy sequencing, integrated fault detection and diagnostics, and much more.

Network resilience

  • To improve Ethernet network resilience and safeguard against common failures, all RC-FLEX family controllers come standard with Copper Switch™ technology and support for Rapid Spanning Tree Protocol (RSTP). Copper Switch ensures that data still passes through if a controller loses power, maintaining uptime. RSTP lets you connect controllers in a ring topology, which provides inherent redundancy with a duplicate network path; controllers maintain communications even if one part of the ring is severed.

FLEX I/O

IN OUT

SOFTWARE
SELECTABLE

Ultimate flexibility

  • FLEX I/O universal input/output technology takes the legendary Reliable Controls flexibility to a new level. Change each FLEX I/O terminal from an input to an output remotely. Interact with many signal and output types including pulse counting, milliamp, voltage, and more. Gone are the days when a job site change means a new order and a delay—transforming your system is just a click away.

Product features

Backward compatible, future ready

  • Reliable Controls tests every product it manufactures to ensure compatibility with previous-generation controllers. The RC‑FLEXone is no different. You can add it to networks that host previous-generation controllers without the need to purchase costly third-party gateways or accessories. To further future-proof your investment, the RC‑FLEXone features an open-source Linux operating system, renowned for its cybersecurity resilience and global community of programming support.

Better by design

  • RC-FLEX controllers are equipped with a versatile USB application port that provides convenient access to a technician today and extended capabilities tomorrow. You can power the controller via USB from a laptop to permit configuration, firmware updates, programming, and graphics creation. You can also use the USB port to access the entire BACnet network.
  • All input, output, and communication ports are hardware‑protected against transient surges and spikes, which hardens the controller against field-wiring mistakes and improves resilience.

Database? More like databeast

  • With tons of nonvolatile memory, the RC‑FLEXone has enough space to handle the most challenging applications now and in the future. It automatically logs all input, output, value, calendar, loop, and schedule objects, which each stores more than 2,000 records. That’s enough for over 1 million data points. It also has space for 64 control programs, each large enough to run advanced energy sequencing, integrated fault detection and diagnostics, and much more.

Network resilience

  • To improve Ethernet network resilience and safeguard against common failures, all RC-FLEX family controllers come standard with Copper Switch™ technology and support for Rapid Spanning Tree Protocol (RSTP). Copper Switch ensures that data still passes through if a controller loses power, maintaining uptime. RSTP lets you connect controllers in a ring topology, which provides inherent redundancy with a duplicate network path; controllers maintain communications even if one part of the ring is severed.

Ultimate flexibility

  • FLEX I/O universal input/output technology takes the legendary Reliable Controls flexibility to a new level. Change each FLEX I/O terminal from an input to an output remotely. Interact with many signal and output types including pulse counting, milliamp, voltage, and more. Gone are the days when a job site change means a new order and a delay—transforming your system is just a click away.

Sustainable hardware

  • Reliable Controls rigorously engineers its products to minimize their impact on the environment and provide years of dependable, high-performance service. Products are manufactured in an ISO 9001– and 14001–certified facility and feature an industry-recognized 5-year warranty. Made from highly recyclable materials, they also comply with RoHS 3, WEEE, and R2 directives to ensure easy, clean disposal at the end of their useful life.
RoHS 3 Certified WEEE Compliant

Technical specifications

Processor and Memory

  • Three cores: two 500 MHz high-performance, one 125 MHz, 32-bit embedded microcontroller.
  • All nonvolitile flash memory with 10 years of data retention.
  • Operating system firmware can be upgraded at any time over network.
  • 2 GB database memory available; each trend log supports more than 2,000 records.
  • Device status LED indicates operational modes for field service.

Supply Voltages

  • 24 VAC ±10% 40 VA maximum, 50/60 Hz.
  • 24 VDC ±10% 28 W maximum.

Ethernet Communications

The RC-FLEXone is a nonrouting, unitary controller that requires a network host controller.

  • Two IEEE 802.3 Ethernet 10/100BASE-T ports, with a maximum distance of 50 m (164 ft) between Ethernet connections using Category 5, 5e, or 6 cabling. Each device uses one IP address. The second Ethernet port is a switched port; use it to line-connect additional devices.
  • Automatic hardware coupling of Ethernet dual ports when controller loses power.
  • Routing host controllers support up to 74 additional BACnet/IP‑connected devices.
  • RSTP: Rapid Spanning Tree Protocol.
    • Allows ring topology for up to 40 devices isolated by a managed network switch.
  • LLDP: Link Layer Discovery Protocol.
    • Provides details of up to five of the most recently discovered neighboring devices.

MS/TP Communications (-M Models)

The RC-FLEXone is a non-routing, unitary controller that requires a network host controller.

  • One EIA-485 port that supports a baud rate up to 76.8 kbps
  • Auto‑baud detection.
  • 24 VAC overvoltage protection with built in resettable fuses.
  • Software switched End of Line termination (EOL) with amber LED indicator.
  • Status LED illuminates green to indicate MS/TP network operation and red to indicate miswired MS/TP.

SMART-Net Communications

  • SMART-Net port with four-wire terminal block supports up to eight devices.

USB

  • USB-A port with maximum cable length of 5 m (16.4 ft).

Universal Inputs

  • Standard 16-bit A/D converter.
  • Software selectable 0–10 VDC, 4–20 mA, thermistor/dry‑contact.
  • Impedance:
    • 3 MΩ on 0–10 VDC range.
    • 249 Ω on 4–20 mA range.
    • 20 kΩ on thermistor range.
  • Pulse counting up to 150 Hz. Supports flow meters.
  • 24 VAC overvoltage protection.

Universal Outputs

  • 16-bit D/A converter.
  • Analog: 0–12 VDC.
  • Binary: Software configurable between 0–12 VDC.
  • Output power: 75 mA at 12 VDC source, -10 mA sink.
  • 24 VAC overvoltage and short protection.

FLEX I/O

  • Software selectable universal input, universal output, or solid-state relay.
  • Inputs can be configured for S0 pulse counting applications.

FLEX Outputs

  • Use software to select as universal or solid-state relay.

Hand/Off/Auto (-H option)

  • Hand/Off/Auto switch.
  • Hand provides adjustable 0–12 VDC or solid-state on/off.
  • LED indicator glows proportionally.

32 System Groups

  • Group related objects on one display.
  • System Groups accommodate up to 320 objects.
  • Host custom user interfaces for integrated fault detection and diagnostics.

Solid-State Relay Output

  • Switch 24 VAC/VDC.
  • 500 mA maximum.

Real-Time Clock (-C option)

  • Option adds real-time clock with 72 hours of capacitor backup.

Wiring Terminals

  • 16–24 AWG (1.31–0.21 mm2).
  • Stranded or solid core.
  • Copper conductors only.

32 Loops

  • Standard P, PI, or PID controllers for closed loop control.

Dimensions

  • 17.7 cm L x 9.1 cm W x 6.0 cm H

    (6 15/16" L x 3 1/2" W x 2 1/2" H).

512 Values

  • Select standard and custom ranges as well as fixed or program‑driven values. Some values are automatically added by firmware.

Mounting

  • Supplied with 35 mm DIN rail.

64 Calendars

  • Designate days of the year as holidays.

Weight

  • 0.9 kg (2 lbs).

16 Schedules

  • Up to seven on/off cycles for each weekday or exception.

Ambient Limits

  • Operating: -20°C to 55°C (-4°F to 131°F).
  • Shipping: -40°C to 60°C (-40°F to 140°F).
  • Humidity: 10%–90% RH noncondensing.

Single-point Trend Logs

  • 256 manually defined logs.
  • Automatically generated Single-point Trend Logs for all input, output, value, calendar, schedule, and loop objects.

Enclosure

  • 6063-T6 anodized aluminum extrusion and powder‑coated die‑cast aluminum end caps.

16 Multipoint Trend Logs

  • Store up to eight objects in each trend log.
  • Record values by polling or change of value.
  • User assigned.

Certifications

  • BTL Listed (B-BC) pending.
  • CE.
  • CFR 47 Part 15/B Class B.
  • UL 60730-1 Open Energy Management.
  • WEEE.
  • EN 60730-1.
  • Canada ICES-003(B)/NMB-003(B).

256 Notification Classes

  • Specify broadcast destinations.

Warranty

  • 5 years.

32 Arrays

  • Up to 128 elements in a one-dimensional array.

Custom Units

  • Eight analog engineering units.
  • Eight binary engineering units.
  • Eight multistate units with eight states.

64 Programs

  • Freely programmable control strategy in a readable, BASIC-like language.
  • 6,400 bytes per program.

Eight Tables

  • For creating custom scaling functions.

256 Net Ins

  • Maximum number of shares from other devices.

128 Net Outs

  • Maximum number of writes to other devices.

Wiring Terminals

  • 16–24 AWG (1.31–0.21 mm2).
  • Stranded or solid core.
  • Copper conductors only.
  • 5 mm (0.20") rising-cage screw terminal blocks.

Diagrams




Terminal layouts

Dimensions