Werner Mayr Email and Phone Number

After adoption of the norm IEC 60870-5-101 in the year 1995 this protocol has established as official standard for serial telecontrol communication between distributed processes in power supply network automation systems. Also the serial protection device connection described in the norm IEC 60870-5-103 and the communication standard for LAN- / WAN networks according to IEC 60870-5-104 became widely accepted. For the metering of electrical energy and the transmission of integrated totals, standards IEC 60870-5-102 and IEC 62056-21 ( former IEC 61107 ) are increasingly deployed in addition to the previously used protocols.Despite the mature standards there are often problems during the implementation caused by differing interpretation of the norm or project-specific requirements that may incur substantial costs. Very often it is already necessary to test at a time when some of the components or devices are not yet available. For this reason it is necessary to have a reliable test software based on longstanding experience in telecontrol protocols.The LIAN 98 software facilitates a comfortable, user friendly testing and analysis of the transmission data between systems that most use different telecontrol protocols. The great advantage of LIAN 98 is that the software can supervise different protocols ( e.g. IEC 101, IEC 104, ... ) simultaneously. Of course, also several telecontrol devices ( master- and substation ) can be simulated contemporaneously. Therefore it is possible to test particular parts of a system even when not all components of the system are available.The "LIAN 98 Protocol Router, Simulator and Analyzer" is a Microsoft® Windows® based application used for simulation and monitoring of process interfaces.The software is equally suitable for developers of telecontrol when testing, commissioning and maintenance of telecontrol installations and for operators of existing telecontrol systems for supervision.

Project : SATS ( South African Railway )Centralized supervision and control system in Johannesburg for the Western Transvaal, in Durban for Northern Natal and in Port Elizabeth for Cape Midlands regions.All three control centers are build up on the same concept using a second computer as a hot standby. Each center can accommodate 600 RTU's and 1500 pictures on color graphic display units.The capacity for each control center is to receive approximately 10000 alarms, 48000 switching position indications and 10000 measured values as well as 19000 switching devices can be operated.In the case of total break down of a control center, the possibility of operating the region from a remote emergency control center is also realized.