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Institute Mihailo Pupin
Institute Mihailo Pupin is the leading Serbian R&D institution in the field of Information & Communication Techologies.

Automation & Control Systems Ltd
The Automation & Control Systems Ltd is the core division of the Institute Mihailo Pupin, and the owner of the projects: ATLAS Systems and ATLAS-MAX.

References
The long list of the Institute's references and customers is the best proof of its high professional and techological achievments.

VIEW SCADA & DCS
The other related IMP project: VIEW4 Software Package for control of complex processes

You are here:     piko-ATLAS System p-Configuration pATLAS Units
pATLAS Standalone Units

 

This is the most common pATLAS implementation - a standalone unit, where a master CPU module is managing remaining slave modules (primarily process interface input/output modules) and communication with remote control center.  This is the remote communication that makes differences among standalone pATLAS configurations, as a result of applied communication modes and transmission media.  The CPU module is equipped with two asynchronous serial interface channels, the standard RS232/RS422/RS485 and the fibre-optics one.  For better understanding of presented configurations, it is important to notice that these are hardware interfaces – while the communication procedure is programmable and managed by the CPU microprocessor according the implemented communication programs.

 

Traditional Approach

 

Traditional pATLAS Unit

The pATLAS system consists of a single master CPU module and multiple slave I/O and/or special modules plugged into a power supplied TBUS distribution rail.  The applied power supplying could be redundant to achieve better and more reliable performances.  The bidirectional communication with a remote control center is provided via an external modem connected to the available CPU serial interface port.  All collected process data are stored locally ready for transmission to the remote center, while the flow of control data is in the opposite direction.  The traditional communication protocol is ATLAS-IEC, although other scenarios are also possible.

 

TCP/IP Networked Unit

 

TCP/IP pATLAS Unit

The pATLAS system consists of a single master CPU module and multiple slave I/O and/or special modules plugged into a power supplied TBUS distribution rail.  The unit is equipped with the Ethernet Module and connected to the TCP/IP network (here identified as TCP/IP Cloud), exchanging data with other network participants.  It fully complies with 7-Layer ISO OSI Referent Model and 4-Layer TCP/IP Stack.

 

Wireless GPRS Unit

 

GPRS pATLAS Unit

The pATLAS system consists of a single master CPU module and multiple slave I/O and/or special modules plugged into a power supplied TBUS distribution rail.  The unit is equipped with the GPRS Module and connected to the mobile network, exchanging data with other network participants.  The data exchange is based on the IP-based GPRS tunnelling protocol, providing wireless connectivity between different units and remote control center.  The peculiarity of this approach is a support for mobile units, i.e., the unit could change the location (for example, in transportation monitoring and control).