Preparing the Aid System for Industrial Network Oriented Diagnostics - New Contributions in Information Systems and Technologies - page 278

cabinet, excessive AS-interface flat cable was found, and one of the 4 sensors
connected to the I/O module with the highest W T had a broken head (still, power was
supplied).
After the replacement of the broken inductive proximity switch some of the data
packages were still lost, and the transmission factor was equal to 0,21%, There was no
permanent error in the network, only some warnings. One of the conclusions from the
reasoning process indicates a possible need of using special devices, such as: a
terminator for the network that can offer assistance in case of excessive cable length.
After the terminator has been used, the network worked perfectly, and the
transmission factor is equal to 0,12%. Finally, after 45 minutes, the malfunctions ware
finally removed.

3.2 Conclusions

The discussed method of diagnostics and troubleshooting of industrial networks is
a challenging task which may be successfully accomplished, only if faced with
industrial reality. The method and the SUFINED system, successfully couple the
knowledge from a few areas: electrical engineering, mechanical engineering,
computer science and automation processes science, providing a complex, yet flexible
system open for further development, and providing a support for the operation and
diagnostics of machines. The discussed system can be extended to cover other
industrial communication standards.
Acknowledgement. This work was supported by grants from the National Centre for
Research and Development (NR UOD-DEM-1-495/001).

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