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The iSMA-B-MAC36NL is a compact Master Application Controller with various built-in I/Os and operation in the Niagara Framework environment. Using local I/Os, 16x UI, 8x AO, 4x DI and 8x DO allow the device to be used for different applications. The controller provides control, data logging, alerting, scheduling, integration and visualization.

2x Fast Ethernet ports are available for establishing the IP connection, which can operate as two independent ports. The built-in 1x RS485 can be used to expand the number of I/Os by connecting iSMA-B-MINI or iSMA-B-MIX series I/O modules or for integration with other subsystems.

There is another hardware version of the controller that has a second RS485 port.

The iSMA-B-MAC36NL provides a rich graphical interface via a standard web browser or an external display that can be connected to the built-in HDMI and USB ports (touch screen support) (coming soon).

Main features:

  • Niagara 4.10

  • Real-time programming

  • 2x Fast Ethernet (independent)

  • 1x RS485 (opto-isolated)

  • 2x USB (1x Host, 1x OTG, touch screen support) (not yet supported)

  • 16x UI, 8x AO, 4x DI and 8x DO

  • HDMI for connecting external displays (coming soon)

  • The embedded web server provides a graphical user interface that can be accessed from a web browser

  • SD card for real-time data, logging and alarm storage

  • Hardware exchange with SD card

  • Optional hardware version with a second RS485 port

  • Optional hardware version with M-Bus port

  • Different authorization models for different application types



16x Universal Input (16UI)

Each Universal Input has a 16-bit ADC that supports the following types of inputs:

  • The temperature input supports the following types of sensors: NTC 10K3A1, 10K4A1, Carel 10K, 20K6A1, 2.2K3A1, 3K3A1, 30K6A1, SIE1, TAC1, SAT1 and Pt1000, Ni1000

Use only 16-bit resolution for Pt1000 and Ni1000 sensors!

  • Voltage input 0-10 V DC, input resistance 100kΩ

  • Current input 0-20 mA (200 Ω external resistance required)

  • Resistance input 0-1000kΩ

  • Dry contact input

4x Digital Input (4DI)

  • Dry contact inputs

  • Fast pulse counter up to 100 Hz, saved on SD card

8x Analog Output (8AO)

All analog outputs are equipped with a 12-bit ADC. The following output types are supported:

  • Voltage: 0-10 V DC max. load up to 20mA

  • PWM: 0.01Hz, 0.1Hz, 1Hz, 10Hz, 100Hz

8x Digital Output (8DO)

  • Relay output (NO): max. 3 A @ 230 V AC and max. 3A @ 30VDC


  • Multicore Cortex-A Series ARMProcessor


  • Removable micro-SD card - 4GB (2 GB reserved by the system / 2 GB user storage area)


  • RS485 half-duplex, opto-isolated

  • Baud rate from 2400 to 115200

  • 2x Fast Ethernet (independent)

  • 2x USB (1x Host, 1x OTG)

  • HDMI Type A (Standard)

  • Micro SD card slot

  • Second RS485 port (optional)

  • M-Bus port (optional)


  • Modbus TCP

  • Modbus RTU/ASCII

  • BACnet IP

  • BACnet MS/TP (coming soon)

  • oBiX

  • SNMP

  • KNX IP

  • M-Bus IP

Power supply

  • 24 VAC/DC

Device housing

  • Dimensions: 160x111x62 mm (6.3x4.4x2.45 in)

  • Construction: UL-approved, self-extinguishing plastic (PC/ABS)

  • DIN rail mountable (DIN EN 50022 standard)

  • Cooling: passive external airflow


  • Operating Temperature: 0°C - 50°C (32°F - 122°F)

  • Storage temperature: -40°C to 85°C (-40°F to 185°F)

  • Relative humidity: 5% - 95%, non-condensing

  • Degree of protection: IP30 - for indoor installation

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