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When saving changes to an existing, the whole virtual channel expression is recreated which will invalidate the "armed" state regardless of if there are any changes to the virtual channel expression. |
Centrix allows the definition of "virtual" channels that are formed by combining other channels using a variety of operators. They provide a convenient way of measuring things on the railway that are more sophisticated than a single analogue or digital input to a logger.
In Centrix, the channels tab displays all channels for a particular site. Most of these channels will come from a logger directly, but you also add your own channels here and provide a formula that describes how the values in the channel should be created: such channels are virtual channels.
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