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We have upgraded TDC3000 to Experion Release 300. For this Process Manager has been Upgraded to High Performance Process Manager. The LCN software release has also been upgraded to Release 670 from Relesse 435. Since commissioning we have been facing a frequent issue in the form of LCN suspect alarm. At first we used "Net Media Dead" option to see the max number of dead packets per nodes. The nodes that had max number of nodes were thoroughly inspected for rectification. But now dead packets count varies node to node and we are unable to diagnose faulty node.
It should be noted that all nodes access the LCN network via a device called "MAU--Media Access Unit". And we have also replaced one MAU for rectification.
It should be noted that all nodes access the LCN network via a device called "MAU--Media Access Unit". And we have also replaced one MAU for rectification.