BACnet® Controller

With its onboard I/O, the Reliable Controls® MACH-ProSys takes the MACH-ProCom higher, reaching the apex of control as a fully programmable, Internet-connected, BACnet Building Controller (B-BC) ideal for large rooftop equipment, large mechanical rooms and multi-building applications.

Purchase Products



  • BACnet®
    • B/IP x 2, Ethernet, MS/TP and PTP
  • DHCP
    • Dynamic Host Configuration Protocol
  • Modbus
    • Supports both RTU and TCP communications in both slave mode and master mode with up to 128 slave devices
    • Supports Automated Display Inc. FSCS Modbus Z-Cards
  • SMTP
    • Provides standard email communications for broadcasting email alarms
    • Supports TLS/SSL security
  • SNMP
    • Simple Network Management Protocol
  • SNTP
    • Simple Network Time Protocol

12 Inputs

  • Universal ranges
  • Expandable using MACH-ProPoint expansion modules
  • Maximum possible inputs of 180

8 Outputs

  • Outputs 1-4 are wired to unpopulated sockets
  • Outputs 5-8 are universal (no sockets)
  • Expandable using MACH-ProPoint expansion modules
  • Maximum possible outputs of 120

1024 Variables

  • Selectable standard and custom ranges, as well as fixed program-driven values

128 PID Loops

  • Standard P, PI, or PID controllers for closed loop control
  • BACnet loops supported

128 Schedules

  • 14 On/Off times for each weekday or exception

64 Calendars

  • Days of the year designated as holidays

20 Custom Tables

  • For creating custom scaling functions

64 System Groups

  • Allows related points to be grouped onto one display
  • 320 points/group

128 Control-BASIC Programs

  • User programmable control strategy in a readable, BASIC-like language
  • 3200 bytes per program

Trend Logs

  • Each trend log stores up to 8 points
  • Values recorded at user-defined intervals
  • Dynamically assigned

Runtime Logs

  • Totals the On time and records the On/Off times of every binary point
  • Dynamically assigned

128 Variable Arrays

  • Up to 128 elements in a one-dimensional array

128 User Passwords

  • Protects access to system
  • Each user is assigned a user name and an access level

Custom Units

  • 8 analog engineering units
  • 8 binary units
  • 8 multistate units with 8 states, 30 characters each

SMART-Net Port

  • Networks up to 16 SMART-Sensors

1536 Network In Points

512 Network Out Points

  • The total maximum number of writes and shares to other devices

Real-Time Clock


  • 5 years


RoHS 2 Certified WEEE Compliant OpenADR Alliance BTL Listed Device

Tech Specs


  • 100 MHz, high-performance, 32-bit embedded microcontroller


  • 8 MB operating RAM
  • 2 MB non-volatile RAM (trends and dynamic values)
  • 4 MB Flash EEPROM operating system, database, and controller configuration

Supply Voltages

  • 24 VAC ±10% 75 VA max. 50/60 Hz
  • 24 VDC ±10% 26 W max.


  • IEEE 802.3 Ethernet 10/100 BaseT
  • 2 EIA-485 @ 76.8 kbps max.
  • 1 EIA-232 @ 115.2 kbps max. PC or modem
  • SMART-Net port @ 16 sensors max.

Universal Inputs

  • 12 universal inputs
  • 12-bit A/D converter
  • Analog: 0-10 VDC, 4-20 mA, thermistor
  • Binary: dry contact
  • Impedance:
    1 MΩ on 0-10 VDC range
    250 Ω on 4-20 mA range
    20 kΩ pull-up for thermistor/dry contact range
  • Pulse counting up to 150 Hz
    (supports flow meters)
  • 24 VAC over-voltage protection

8 Outputs

  • 12-bit D/A converter
  • First four outputs are socketed to accommodate relay, TRIAC, or universal modules (output modules sold separately)
  • Analog: 0-12 VDC
  • Binary: 0-12 VDC
  • Manual ON provides adjustable 0-12 VDC (HOA only)
  • LED indicator (glows proportionally)
  • Output power: 75 mA @ 12 VDC
  • 24 VAC over-voltage and short protection

Expansion Modules

  • Up to 7 MACH-ProPoint expansion modules

Peripheral Power

  • Onboard variable 15-24 VDC power supply providing up to 200 mA of DC power to peripheral devices (if powered with 24 VDC, the maximum voltage output is 22 VDC)

Real-Time Clock

  • ±1 second per day

Memory/RTC Backup

  • 72 hour backup
  • 10 years for database

Wiring Terminals

  • 12 to 22AWG (3.31 mm2 to 0.33 mm2)
  • Stranded or solid core
  • Copper conductors only


  • 25.4 cm L x 13.7 cm W x 3.9 cm H
    (10" L x 5 3/8" W x 1 1/2" H)


  • #8 clearance holes on 23.0 cm L x 11.0 cm W (9 1/16" L x 4 5/16" W)
  • Screw depth 25 mm (1")


  • 1.3 kg (2.7 lb)

Ambient Limits

  • Operating: -20 ºC to 55 ºC
    (-4 ºF to 131 ºF)
  • Shipping: -40 ºC to 60 ºC
    (-40 ºF to 140 ºF)
  • Humidity: 10% to 90%
    RH non-condensing

Application Diagram

Expansion Modules

MACH-ProPoint™ Input/Output Universal IO-U Expansion Module
Add modular inputs and outputs to any MACH-Pro, MACH-ProWeb or MACH-Pro2 series controller with this flexible, general purpose expansion module with universal I/O.
MACH-ProPoint™ Input/Output I/O Expansion Module
Add modular inputs and outputs to any MACH-Pro, MACH-ProWeb or MACH-Pro2 series controller with this flexible, general purpose input/output expansion module.
MACH-ProPoint™ Input Expansion Module
Add modular inputs to any MACH-Pro, MACH-ProWeb or MACH-Pro2 series controller with this flexible, general purpose input expansion module.
MACH-ProPoint™ Output Output Expansion Module
Add modular outputs to any MACH-Pro, MACH-ProWeb or MACH-Pro2 series controller with this flexible, general purpose output expansion module.


Reliable Controls offers six equipment enclosures that provide an economical, professional, and branded solution for control equipment protection. Purpose-built for the controls industry, the enclosures maximize the number of Reliable Controls devices that can be accommodated.


The Universal Output Module (UM) provides a standard Reliable Controls 0-12 VDC 75 mA output. Built-in overload and short-circuit protection. Modulating or digital range configured using RC-Studio® 2.0. Sold in packages of ten.

The Relay Module (RM) is a Single Form C SPDT dry contact, 24 VAC/DC, 0.5 A. A jumper is provided to select normally open or normally closed operation. Ideal for switching low current and/or DC loads. Sold in packages of 10.

The TRIAC Output Module (TM) is a single normally open contact for 24 VAC loads only, 0.5 A. Ideal for switching 24 VAC control circuit loads found in packaged HVAC systems, and 24 VAC two-position or floating point actuators. Sold in packages of 10.


DIN Rail Mounting Kit Mounting convenience
The Reliable Controls® MP-DINRAIL™ is a two piece ABS adapter that is custom designed to convert the standard MACH-Pro(Web)Com™, MACH-Pro(Web)Sys™, MACH-ProPoint™, and MACH-Pro1/2™ enclosures to be DIN rail mountable.