Neuron variable retain ability...
is there the ability of Neuron to retain a set of variables in the event of a power outage?
If yes, this will be supported in CODESYS?
Neuron is capable of preserving variable state using the MMC drive. Unfortunately I do not know whether the current CODESYS implementation makes use of this functionality, though I do not believe so. The CODESYS subforum may be able to provide a better answer.
In the Axon series we have implemented better means for storing internal state, with fast flash memory used for counters and a replacement for the somewhat lacklucstre MMC arrangement on Neuron. This product line is however still in development, and will be for the next couple of months.