iSMA-B-AAC20 

Experience the Freedom of Control Offered by the Sedona Framework
AAC20 offers a rapid fast advanced application control with a possibility of creating a tailor-made application with a power and flexibility offered by the 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 is suitable for a wide range of HVAC projects.

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 a 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 the 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.

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 of multiple controllers with MIX modules over the RJ45, which enhances the cabling process and reduces the engineering time. The ability for troubleshooting using a built-in web server or a USB port facilitates 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)
2 RS485 interface
2 Ethernet interface with built-in switch
USB host interface
1-Wire interface
microSD card slot
Status LED indicators
DIN rail mounted
22 I/Os onboard

Inputs
8 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

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

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

6 Analog Outputs (AO)
0-10 V DC output with 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

Communication
Modbus RTU/ASCII
Modbus TCP/IP
BACnet MS/TP
BACnet IP
M-Bus IP
SOX protocol
oBIX
1-Wire
Free software: Sedona Updater & iSMA Tool
Built-in web server

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