To allow IP connectivity there are 2x Fast Ethernet ports which can operate as two independent ports. Built-in 1x RS485 can be used to expand the number of I/O by connecting iSMA-B-MINI or iSMA-BMIX series I/O modules or to integrate with other subsystems.

There is another hardware version of the controller with the second RS485 port available.

iSMA-B-MAC36NL provides rich graphical interface displaying on a standard Web browser or on external display connected to built-in HDMI and USB port (touchscreen support)

Main Features

16x Universal Inputs (16UI)

All Universal Inputs have 16-bit ADC which support the following types of inputs:
Temperature input supports the following types of sensors:
10K3A1, 10K4A1, Carel 10K, 20K6A1, 2.2K3A1, 3K3A1, 30K6A1, SIE1, TAC1, SAT1, Pt1000, Ni1000

For sensors Pt1000 and Ni1000 use only 16-bit resolution!

• Voltage input 0-10 V DC: input resistance 100 kΩ accuracy ±0,1%, measurement resolution 3 mV @ 12-bit
  and 1 mV @ 16-bit
• Current input 0-20 mA (external resistor 499 Ω required)
• Resistive input 0-1000 kΩ: measurement resolution
  for 20 kΩ load: 20 Ω @ 12-bit and 1 Ω @ 16-bit
• Dry contact input

4x Digital Inputs (4DI)

• Dry contact inputs
• Fast pulse counter up to 100 Hz saved in SD Card

8x Analog Outputs (8AO)

All Analog Outputs are equipped with 12-bit ADC provides 10 mV resolution and accuracy less than ±0,5%. They support the following output types:

• Voltage: 0-10 V DC max. load up to 20 mA
• PWM: 0,01 Hz, 0,1 Hz, 1 Hz, 10 Hz, 100 Hz

8x Digital Outputs (8DO)

• Relay output (NO): max. 3 A @ 30 V DC

Platform

• Multicore Cortex-A Series ARM Processor
• 1GB DDR3 SDRAM
• Removable micro-SD card – 4 GB
  (2 GB system reserved / 2 GB user storage)

Communication

• RS485 half-duplex, opto-isolated
• Baud rate from 2400 to 115200
• 2x Fast Ethernet (independent)
• 2x USB (1x OTG, 1x Host)
• HDMI type A (standard)
• Micro SD card slot
• Modbus RTU/ASCII/IP, BACnet MSTP/IP, oBIX, SNMP,
  LON/IP, KNX/IP
• Second RS485 (option)

Power supply

• 24 V AC/DC

Housing

• Dimensions: 160x110x62 mm.
• Construction: UL approved,
  self-extinguishing plastic (PC/ABS)
• DIN rail mounting DIN (DIN EN 50022 norm)
• Cooling: internal air circulation

Environment

• Operating temperature: -10°C to 50°C
• Storage temperature: -40°C to 85°C
• Relative humidity: 5% to 95%, no condensation