-source
A systems
SCADA Open Source Solutions
By Denis Ulybyshev
Overview of current SCADAs
Name
openSCADA
OpenScada
Key features
Supports SNMP, OPC,
relational DB. Client-server
architecture. Development
under Eclipse IDE.
Works under Linux OS,
supports Modbus, OPC,
SNMP, ICP DAS. Remote
WEB interface. Java-like
language on the high level
OS
Hardware
supported
Windows,
Linux-?
Provides interfaces http://opensca
in Java, interface da.org/
modules to external
systems like S7
PLC
and connects to
ARDUINOs
ALTLinux,
Simple special
http://oscada.o
protocols,
rg/en/main/cha
developed by users racteristics/
by helps of
transport's protocol
module User
Protocol.
SuSELinux,
Mandriva,
ASPLinux,
Fedora,
Debian,
Ubuntu ...
Win 7, Vista, PLC drivers
supported:
Graphical SCADA collect data from PLCs without WInXP
(Siemens, GE,
any time limitation but can define
System)
Omron, Modbus,
up to 50 objects only. This
Modicon)
version can be upgraded to the
IGSS (Integrated The free version allows you to
larger IGSS SCADA
Web-site
http://www.7t
.dk/products/
igss/index.as
px
Main drawbacks of
open-source SCADAs



Limitation on the number of equipment
connected (IGSS)
Limitation on the number of variables
(SIELCO)
Limitation on the number of hardware
protocols supported
SCADA: Analog Data Visualization
ADA: communication with ARDUINO
CADA: Simple Visualization Screen
Visualization of discrete and analog variables
openSCADA: list of Alarms
IGSS System requirements
Hardware requirements


IGSS requires a Pentium 2 Ghz PC or equivalent.
Memory requirements are related to the size of the IGSS
database, screen resolution and concurrent use of other
software packages. It is recommended that at least 1Gb is
available for IGSS.

Graphics card supporting true color graphics (min. 24
bit).

At least one free parallel or USB port on the server PC
must be available for the IGSS dongle for licensed systems.
(Soft-lock has been an option since version 9).
Software requirements

32bit & 64bit of:: Windows 7, Windows 2010 Server,
OpenSCADA
Data acquisition from hardware of manufacturer
“ICP DAS” and others.
Providing data to upper-level systems:
By means of interfaces:



Serial interface (RS232, RS485, Modem, ...), by
helps of transport module Serial.
IP-networks sockets and network levels
protocols TCP, UDP and Unix, by helps of transport
module Sockets.
Security sockets layer (SSL), by helps of
transport module SSL.
By means of protocols:
Conclusion
Summary:
 3 open-source SCADAs are presented (out of 6-7 popular)
 openSCADA supports ARDUINO hardware
 openSCADA supports SNMP, OPC, relational DB; Clientserver architecture. Development under Eclipse IDE
(interfaces can be written in JAVA).
 To design SCADA-level we must have the full-picture of
hardware used (number of controllers, sensors etc),
protocols used and the full list of signals (variables) ...