The gateway cached channel?

Hello

Configuration: VeriStand 2011 SP1

I'm working on a .NET application which collects the values of channels using the gateway VeriStand. The data collection is cyclical with a period that can be changed by the operator. On my system (PC running .NET app + gateway connected to a target RT PXI) it seems that when the scan period if the value 15 ms, bridges returns me 4 times the same value (i.e. watch the channel of "System Time").

It is not a problem for me, because my doing only requires a maximum sweep frequency of 20 Hz. But I have to explain the limits of the method 'GetMultipleChannelValues' (is there mechanisms in cache or something like that?). In any case can I assume that the gateway provides a no more than 40 ms of data?

Thanks for the clarification, best looks.

By default the target will send the latest channel data bridge 15 times per second, which is around a 60-ms period. It's data that the gateway returns when you call GetMultpileChannelValues. This is done to save the processor on the target and strip use network bandwidth.

You can configure a target to send data more often than 15 Hz, but you must change the definition of system manually to do this.

Tags: NI Products

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