iSMA-B-AAC20-LCD

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.

Local HMI with a Built-in LCD
A fully customizable LCD display with a 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 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 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
22 I/Os onboard
Built-in LCD

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%