iSMA-B-AAC20-M

SMA-B-AAC20-M controller (iSMA-B-AAC20) with M-Bus for up to 20 devices is an advanced device for controlling building automation and HVAC systems. Using the SVM (Sedona Virtual Machine) allows you to complete the setup quickly and easily. It is ideal for smaller projects where you want to stay open protocol while keeping development simple and costs under budget.

The Mbus Interface allows you to pick up max 20 meters.

The large number of inputs and outputs enables integration with other devices and sensors (AAC20 provides 8xUI, 4xDI, 4/6xAO, and 4xDO). Its fast processor allows control of even very large objects. Built-in RS485 can be used to expand I/O by connecting MINI or MIX series I/O modules via Modbus ASCII/RTU. In addition, to increase the controller’s versatility, it supports many open communication protocols, such as BACnet, Modbus, SOX, DALI, M-Bus, 1-wire, and oBIX (optional). AAC20 is mounted in a housing adapted for DIN rail mounting or directly on a panel. Separate, easy-to-remove connectors allow quick wiring without removing the entire module.

Inputs & Outputs
8 x Universal Inputs (8UI)
All universal inputs have 16-bit resolution, which supports the following types of inputs:

• Temperature input support the following types of sensors: 10K3A1, 10K4A1, Carel 10K, 20K6A1, 2.2K3A1, 3K3A1, 30K6A1, SIE1, TAC1, SAT1, Pt1000, Ni1000

For sensor Pt1000 and Ni1000 use only 16bit resolution

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

4 x Digital Inputs (4DI)

• Dry contact inputs
• Fast pulse counter up to 100Hz

4/6 x Analog Outputs (4/6AO)
All analogue outputs are equipped with a 12-bit ADC that provides 10 mV resolution and accuracy of less than 0,5%. They support the following output types:

• • Output 0-10V DC maximum load up to 20mA(5mA- AO6)
  • PWM: 0,01Hz, 0,1Hz, 1Hz, 10Hz, 100Hz

AO5 and AO6 can only be used if the 1-wire port is not in use. Please note that for AO6 maximum current load is up to 5mA
4 x Digital Outputs (4DO)

• Relay output (NO) max. 3A, 250 VAC/30 VDC

Platform

• ARM Cortex-M4 204MHz
• ARM Cortex-M0 204MHz

Communication

• Interface RS-485 half-duplex
• Baud rate: 2400 to 115200 bps
• 2xEthernet with built-in switch
• 1-Wire Interface
• Micro SD card slot
• USB Host Interface
• Protocols: Modbus, BACnet, 1-wire, oBIX

Power supply

• 24V AC/DC

Housing

• Dimension: 106 x 110 x 62 mm.
• Construction: plastic, self-extinguishing (PC/ABS)
• DIN rail mounting (DIN EN 50022 norm)
• Cooling: internal air circulation

Environments

• Operating temperature: -10C to 50C
• Storage temperature: -40C to 85C
• Relative humidity: 5 to 95%, no condensation
• Ingress Protection Rating: IP40 for indoor installation
  
• iSMA-B-AAC20_Datasheet_DBL625en_V1.8
• iSMA-B-AAC20_Installation_instruction_DIM425en_v2.6
• iSMA-B-AAC20_Advanced_Control_Kit_DMP228en_V1.3_Manual
• iSMA_B_AAC20_Weather_Kit_DMP238en_V1.3_Manual
• iSMA_B_AAC20_Visualization_Web_Server_DMP240en_V1.2_Manual
• iSMA_B_AAC20_Platform_DMP235en_V1.7_Manual
• iSMA_B_AAC20_NTPClient Kit_DMP229en_V1.4_Manual
• iSMA_B_AAC20_Modbus_DMP231en_V1.9_Manual
• iSMA_B_AAC20_MailService_Kit_DMP236en_V1.3_Manual
• iSMA_B_AAC20_M-Bus_DMP232en_V1.4_Manual
• iSMA_B_AAC20_LCD_Display_DMP234en_V1.5_Manual
• iSMA_B_AAC20_Hardware_DMP239en_V1.2_Manual
• iSMA_B_AAC20_DALI_DMP233en_V1.6_Manual
• iSMA_B_AAC20_Control_Kit_DMP227en_V1.3_Manual
• iSMA_B_AAC20_Building_Kit_DMP237en_V1.2_Manual
• iSMA_B_AAC20_BACnet_DMP230en_V1.7_Manual
• iSMA_B_AAC20_AAC20_Updater_DMP302en_V1.0_Manual
• iSMA_Tool_Manual
• iSMA_Tool_Programming_Tool_DMP247en_V1.6_Manual
• iSMA_Tool_Release_Notes iSMA_Tool_V1.6.1_Release_Notes
• iSMA_Tool_Working_with_iSMA_B_AAC20_simulator_Manual

Release Notes:

• iSMA_B_AAC20_V6.4_Release_Notes