Danfoss DECS 2.0 Data sheet

Data sheet

DECS 2.0

Danfoss Energy Control System

Description

DECS 2.0

DECS 2.0	The Danfoss Energy Control System (DECS) is a
	web-based SCADA software solution (Supervisory
	Control And Data Acquisition) for district heating
	systems.
	This SCADA solution is typically installed locally
	at the heating utility and will automatically
	configure its user interface and functionality to
	support the application in the controller (for
	example Danfoss ECL Comfort 310).

The user of the DECS 2.0 system is able to remote control and monitor the parameters settings in the controllers and also monitor actual, reference and historical values of sensors and meters connected to the controller.

Danfoss ECL Comfort 310, OPR0010 and OPR0020 controllers are supported by the autoconfiguration features of DECS 2.0, but the ECL Apex 20 controller can also be supported by manually adding graphics and programs into DECS 2.0.

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Data sheet

DECS 2.0 Danfoss Energy Control System

User benefits	The advantages of DECS 2.0 are among others:
	Easy installation
	Automatic configuration makes installation easy
	Advanced techniques are used for simplifying and
	automating the installation process. Once the
	controller is installed and connected to the
	network, the web-based user interface is
	generated on the DECS server with just a few
	mouse clicks. The DECS server software is installed
	at the heating plant and has no special
	requirements except for a reliable PC connected
	to the internet.
	Easy customization
	User interface and functionality suits project specific
	needs
	DECS is a visualisation platform based on the
	Atvise SCADA system. The user interface and
	functionality is easily customized by the system
	integrator to project specific requirements using
	the Engineering Tool. The scaleability of DECS
	ensures an optimized SCADA solution for small,
	large and growing district energy networks.
System architecture	The architecture of DECS 2.0 is shown below.
	The central building blocks of the DECS 2.0 system
	are the HMI (Human Machine Interface) using the
	Atvise SCADA Client software from Certec, the
	database for storing all logged data from the
	controllers and the OPC UA Server software
	handling the data communication with the
	controllers.

Easy access

Access to control and monitor locally and remotely

Data is constantly exchanged between the controllers and the DECS Server. The server provides an intuitive user interface, which is accessible from any standard browser on a PC, laptop or smartphone connected to the internet. You can control and monitor your heating station and substation installations from everywhere.

Standard

System is built on standardized software and interfaces

Standardized DECS Server software increases reliability, lowers hardware complexity and allows integration of other building automation systems into the heating system. The communication interfaces are based on the well-known ModbusRTU or Modbus-TCP protocols, which provide a reliable, low complexity network.

DECS 2.0 supports data communication between the server and controllers using Modbus-TCP (Ethernet), LON bus and Modbus-RS485.

C E N T R A L S Y S T E M

H M I ( a t v is e )

( W eb- B rows er / S CADA- S ys tem )

Databas e

O P C U A S e r v e r

E t h e r n e t ( M O D B U S - T C P )

B io m a s s		B io m a s s
C o n t r o lle r		C o n t r o lle r

B io m a s s

C o n t r o lle r

L O N n e t w o r k

B io m a s s		B io m a s s
C o n t r o lle r		C o n t r o lle r

B io m a s s

C o n t r o lle r

M O D B U S ( R S 4 8 5 )

B io m a s s		B io m a s s
C o n t r o lle r		C o n tr o lle r

B io m a s s

C o n t r o lle r

2 | © Danfoss | 2018.05

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Data sheet

DECS 2.0 Danfoss Energy Control System

Application	DECS 2.0 software automatically adapts its user
	interface to fit the application in the controller.
	The following controller applications are
	supported:
	• ECL Comfort 310 controller
	* Please see ‘List of application keys
	supported by DECS 2.0’
	Go to http://heating.danfoss.com. In the
	‘Documentation’ menu select ‘Electronic
	Controllers & PI Controllers > SCADA
	Solutions > Data sheet’.
	• OPR0020 Controller
	* Firmware R4 and newer

As an option the ECL Apex 20 controller can be integrated into DECS 2.0 to remote control and monitor the district heating utility or boiler house.

This requires a system integrator to develop a customized application for the ECL Apex 20 controller as well as a customized HMI for the DECS 2.0 system using the OPC server software for ECL Apex 20.

•OPR0010 Controller

*Firmware v3.

Below is an application example of DECS 2.0 in a biomass district heating network using Modbus-RS485 for data communication. The server, which has DECS 2.0 installed, is located in the district heating utility and a central laptop is used for operating the DECS 2.0 system.

An external service provider also has access to the DECS 2.0 system using his laptop connected to the internet. The server and the ECL Comfort 310 controllers are communicating via an RS485 serial link using the Modbus protocol.

j	k
	n
•	p
j
	m
	o
j
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j Private house

k Boiler house for biomass • Modbus-RS485 network m Internet

n DECS 2.0 server

o DECS 2.0 client (external service provider) p DESC 2.0 client (central administration) q ECL Comfort 310 controller

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Data sheet

DECS 2.0 Danfoss Energy Control System

Application	Below is an application example of DECS 2.0 in
	biomass district heating network using Modbus-
	TCP (ethernet) for data communication. It is similar
	to the previous example except that the ECL
	Comfort 310 controllers are communicating with
	the server via standard internet connections using
	the Modbus protocol.

These internet connections may be used also by laptops in the houses for browsing the internet and also to access the DECS 2.0 system.

		k
j
•	n
	n	p
		p
j
•	m
		o
j
•
q

jPrivate house

kBoiler house for biomass

• Modbus-TPC network (internet)

mInternet

nDECS 2.0 server

o DECS 2.0 client (external service provider) p DESC 2.0 client (central administration)

qECL Comfort 310 controller

Languages	The following languages are supported by the
	graphical user interface of DECS 2.0:

•English

•German

•Italian

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