Changing System Time Affects Network-Published Shared Variable

[msad66]

Hi

I have some network-published shared variable which are acquired in one computer (PC-1) and shown in another computer (PC-2). These variables are aliasing with each other using PSP. When I change the system time of PC-1 backward for one minute, the update rate of variable in PC-2 is decreased for a one minute. Why? Does changing system time affect network-published shared variables? It noteworthy that changing time forward does not have this effect.

Regards

[crossrulz]

If the system time is used to determine when to send the updates, that would make sense.

1. Send Update

2. Set time to send update to Now+X seconds

2.5 Time got set back a minute

3. X seconds after 2, the time is still less than update, so wait

4. Repeat 3 every X seconds until system time greater or equal to update time, which will actually be X+60 seconds (due to the 1 minute change).

[msad66]

Thanks for your quick replay.

I do not use the system time to determine when to send the updates.

I just used a standard network-published shared variable without any buffer or RT FIFO.

Does SVE use the system time?

[crossrulz]

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@msad66 wrote:

Does SVE use the system time?

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That is my current theory.  Somebody from within NI will have to chime in to say for sure.  But the evidence does point to that.