AAC20 LCD M persp

Freely programmable Advanced Application Controller powered by Sedona Framework is a universal DDC and multiprotocol integration platform. Equipped with onboard 22 I/Os, 2 RS485 ports, 2 ports with Ethernet interface working in a switch mode, 1-Wire interface, built-in web server and M-Bus interface for direct meters integration. A fully customizable LCD display and password-protected access make the controller useful in various HVAC applications.

Experience the freedom of control offered by the Sedona Framework
AAC20 offers rapid fast advanced application control with a possibility of a tailor-made application creation with the power and flexibility offered by Sedona Framework. Sedona is an open-source software environment designed to make it easy to build smart, networked, embedded devices which are well suited for implementing control applications.
Freely programmable controller with a modern programming tool, a variety of integration interfaces and 22 onboard I/Os make it suitable for a wide range of HVAC projects.

Local HMI with a built-in LCD
The fully customizable LCD with role-based access makes the controller useful in various HVAC scenarios. The ability to treat the LCD as a part of an application makes the operator able to read and set control values, read alarms, set schedules and configure the controller.

Data logging with instant access
The device is suitable for fast response environments thanks to its instant start-up, real-time clock (RTC) and powerful onboard Cortex-M4 processor. A microSD card slot allows alarms and trend logs to be collected and read in real-time.

Direct Digital Control
To ensure the maximum flexibility of AAC20 it is equipped with 22 I/Os that can be easily expanded with two RS485 ports using iSMA CONTROLLI Multiprotocol I/O Modules.

8 Universal Inputs
Support for over 20 types of temperature sensors and voltage, resistance, current, and dry contact measurements on each universal input.

4 Digital Inputs
Dry contact inputs – made for monitoring. 100 Hz fast pulse counter with override function saves the real-time values to the non-volatile memory of the controller.

4 Digital Outputs
Digital outputs equipped with normally open 3 A relays allow for direct control without additional relays.

6 Analog Outputs
0-10 V DC control with 10 mA accuracy, PWM modes and a maximum load of up to 20 mA to power external relays makes the output suitable for a variety of scenarios (AO5 and AO6 can only be used if 1-Wire port is not in use, maximum current load for AO6 is up to 5 mA)

Versatile Integration Platform
To make the controller useful in various building scenarios it is equipped with a variety of open communication protocols over IP and serial buses, like BACnet IP, Modbus TCP/IP, BACnet MS/TP, Modbus RTU/ASCII, M-Bus IP, 1-Wire or oBIX.

M-Bus interface
Onboard M-Bus interface offers direct integration and power up of up to 20 M-Bus meters.

Simplified Configuration and Commissioning Process
Configuration, programming and integration are done in one free of charge tool. Two Ethernet ports working in a switch-mode allow for daisy-chaining multiple controllers with MIX modules over the RJ45, which enhances the cabling process and reduces engineering time. The ability for troubleshooting using a built-in web server or a USB port enhances the engineering process.

Quality and Reliability Confirmed by Certificates
iSMA CONTROLLI is a long-standing member of the BACnet community. The experience in developing high-quality products and the BTL (BACnet Test Laboratory) certification confirm the excellent performance of communication using the BACnet protocol.


Technical Specification


Hardware Specification
ARM Cortex-M4 dual core CPU
Built-in real-time clock (RTC)
2x RS485 interface
2x Ethernet interface with built-in switch
USB host interface
1-Wire interface
microSD card slot
22 I/Os onboard
Built-in LCD
M-Bus interface – up to 20 devices

8x Universal Inputs (UI)
Temperature input 10K3A1, 10K4A1, Carel 10K, 20K6A1, 2.2K3A1, 3K3A1, 30K6A1, SIE1, TAC1, SAT1, Pt1000, Ni1000 0C, Ni 1000 20C, Ni1000 LG 2
Resistive input 0-1000 kΩ
Voltage input 0-10 V DC
Current input 0-20 mA
Dry contact input

4x Digital Inputs (DI)
Dry contact inputs
Fast pulse counter up to 100 Hz save in EEPROM memory

4x Digital Outputs (DO)
NO relay output
Resistive load max. 3 A @ 230 V AC / 30 V DC
Inductive load max. 75 VA @ 230 V AC / 30 W @ 30 V DC

6x Analog Outputs (AO)
Output 0-10 V DC maximum load up to 20 mA (AO5 and AO6 can only be used if 1-Wire port is not in use, maximum current load for AO6 is up to 5 mA)
PWM: 0,01 Hz, 0,1 Hz, 1 Hz, 10 Hz, 100 Hz

Modbus TCP/IP
M-Bus IP
SOX protocol
Free software: Sedona Updater & iSMA Tool
Built-in web server

Power supply
24 V DC ± 20%
24 V AC ± 20%

Power supply24 V AC, 24 V DC
Analog outputs6
Digital outputs4
Digital inputs4
Inputs typeUniversal, Digital
Outputs typeAnalog, Digital
Controller typeProgrammable
Communication protocolBACnet MS/TP, BACnet IP, Modbus RTU/ASCII, Modbus TCP/IP, M-Bus IP

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